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Sewer Inspection/Cleaning i 10/2017

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TABLE OF CONTENTS

Annual Sewer Inspection and Cleaning Services - Sewer Collection System

Engineers

GREELEY AND HANSEN LLC

9020 Stony Point Parkway, Suite 475

Richmond, VA 23235

Environ-Civil Engineering, Ltd.

501 East Franklin Street, Suite 527

Richmond, VA 23219

Project Manual and Specifications

DIVISION 1 - GENERAL REQUIREMENTS

Summary of Work 01011

Contractor’s Use of Premises 01012

Change Order and Work Order Procedures 01035

Project Coordination 01040

Abbreviations and Symbols 01070

Reference Standards 01072

Definitions 01073

Measurement and Payment 01150

Submittals 01300

Progress Schedule 01325

Testing Laboratory Services Furnished by Contractor 01411

Temporary Facilities and Controls 01500

Waste Material Disposal 01564

Storage of Materials 01611

DIVISION 2 - SITEWORK

Erosion and Sediment Control 02010

Clearing, Grubbing and Site Restoration 02110

Bypass Pumping 02150

Excavation and Backfill 02220

Restoration of Pavement 02513

Television Inspection 02651

Sewer Manhole Inspection 02652

Sewer Inspection/Cleaning ii 10/2017

Sewer Smoke Testing 02653

Sewer Dyed-Water Testing 02654

Sewer Laser Profiling and 3D Laser Scanning 02655

Sewer Sonar Inspection 02656

Cleaning of Sewers 02760

DIVISION 3 - CONCRETE

Not Used

DIVISION 4 - MASONRY

Not Used

DIVISION 5 - METALS

Not Used

DIVISION 6 - WOOD AND PLASTICS

Not Used

DIVISION 7 - THERMAL AND MOISTURE PROTECTION

Not Used

DIVISION 8 - DOORS AND WINDOWS

Not Used

DIVISION 9 - FINISHES

Not Used

DIVISION 10 - SPECIALTIES

Not Used

Sewer Inspection/Cleaning iii 10/2017

DIVISION 11 - EQUIPMENT

Not Used

DIVISION 12 - FURNISHINGS

Not Used

DIVISION 13 - SPECIAL CONSTRUCTION

Not Used

DIVISION 14 - CONVEYING SYSTEMS

Not Used

DIVISION 15 - MECHANICAL

Not Used

DIVISION 16 - ELECTRICAL

Not Used

Sewer Inspection/Cleaning iv 10/2017

Sewer Inspection/Cleaning 01011-1 10/2017

SECTION 01011

SUMMARY OF WORK

PART 1 GENERAL

1.1 DESCRIPTION OF WORK

A. The City of Richmond (OWNER) under this contract may assign work in the

sanitary, storm, or combined collections system. The collection system work may

consist of, but is not limited to, providing all materials, equipment, labor,

supervision, and associated site work, complete with all other appurtenances and

related work required to complete CCTV inspection and cleaning, smoke testing,

dyed-water testing, laser profiling, lateral inspection and sonar inspection in

pipelines, manholes and associated structures of the OWNER’s sanitary, storm,

and combined sewer systems. The work includes locating and marking point

locations where the camera cannot pass or where the sewer is in imminent danger

of collapse.

The work also includes providing access to the sewer pipes and manholes for

cleaning, inspection, and future maintenance. This may include, but is not limited

to, clearing and grubbing, locating and raising manhole frames and covers, and

related work. Preparation of pipe may include extensive trimming of protruding

sewer taps.

B. The summary of the Work described in the statement of work is an overall

summary of the responsibilities of the CONTRACTOR and its relation to the

OWNER. It does not supersede the specific requirements of the other Contract

Documents.

C. The OWNER under this contract may assign work in the following ways:

1. Linear Feet (Unit of Measure) Work Assignments: The OWNER may issue

linear feet (Unit of Measure) work assignments for Light Sewer Cleaning,

Heavy Sewer Cleaning, Survey Television Inspection, Chemical Root

Treatment and Chemical Grease Treatment, Flooded Sewer Dyed-Water

Test, Laser Profiling, Lateral Inspection and Sonar Inspection based on pipe

size. These work assignments may include Clearing, Grubbing and Site

Restoration, and this bid item will be paid separately from the Linear Feet

bid items. The work will be in the OWNER’s sanitary, storm, and combined

sewer systems. These will be routine assignments completed during

Regular Business Hours. Regular Business Hours are defined as between the

hours of 7:00 am to 5:00 pm EST. The OWNER may allow the

CONTRACTOR to work on these projects after 5:00 pm but only with prior


authorization by the OWNER. No overtime payments will be paid for work

after 5:00 pm as requested by the CONTRACTOR. The CONTRACTOR

will not be allowed to invoice at hourly rates for work assigned by the

OWNER based on the linear foot and pipe size bid items.

2. Quantity (Unit of Measure) Work Assignments: The OWNER may issue

quantity (unit of measure) work assignments for Manhole Inspection, Sewer

Smoke Testing, Sewer Dyed-Water Testing, Trimming Protruding Taps and

Manhole Frames and Covers. These work assignments may include

Manhole Frame Risers, and this bid item will be paid separately at the bid

item rate only. The work will be in the OWNER’s sanitary, storm, and

combined sewer systems. These will be routine assignments completed

during Regular Business Hours. Regular Business Hours are defined as

between the hours of 7:00 am to 5:00 pm EST. The OWNER may allow the

CONTRACTOR to work on these projects after 5:00 pm but only with prior

authorization by the OWNER. No overtime payments will be paid for work

after 5:00 pm as requested by the CONTRACTOR. The CONTRACTOR

will not be allowed to invoice at hourly rates for work assigned by the

OWNER based on the linear foot and pipe size bid items.

3. Hourly Work (Unit of Measure) Assignments: The OWNER may issue

hourly work (Unit of Measure) work assignments in the collection system.

The work will include Combination Vacuum/Jet Truck and Crew, CCTV

Truck and Crew based on the regular, overtime, and emergency bid items.

These work assignments may include Clearing, Grubbing and Site

Restoration, Chemical Root Treatment, Chemical Grease Treatment, Bypass

Pumping and these bid items will be paid separately at the bid item rates

only. These assignments will be completed based on regular, overtime, and

emergency hours as follows:

a. Regular Business Hours: Work may be either prearranged by the

OWNER or by notification on the day of the assignment. Regular

Business Hours are defined as between the hours of 7:00 am to 5:00

pm EST Monday through Friday, less meal breaks. The OWNER, by

notification on the day of the assignment, requires the

CONTRACTOR to begin the work within 2 hours. The

CONTRACTOR may only invoice for time spent on the project site.

Travel time will not be billable.

b. Overtime Hours: Work may be either prearranged by the OWNER or

by notification on the day of the assignment. Overtime Hours are

defined as between the hours of 5:01 pm to 6:59 am EST Monday

through Sunday, less meal breaks. The OWNER, by notification on

the day of the assignment, requires the CONTRACTOR to begin the

work within 2 hours unless the project is a continuation of a regular


hours assignment. The OWNER will allow the CONTRACTOR to

charge at overtime rates for hourly work assignments that continue

past 5:00 pm with prior authorization only. The CONTRACTOR may

only invoice for time spent on the project site. Travel time will not be

billable.

c. Emergency Hours: The OWNER will assign emergency hourly work

by notification on the day of the assignment. Emergency Hours are

defined as between the hours of 5:01 pm to 6:59 am EST Monday

through Sunday, less meal breaks. The OWNER, by notification on

the day of the assignment, requires the CONTRACTOR to be on the

project site within 1 hour and have begun the work within 2 hours of

the initial notification. The CONTRACTOR may only invoice for

time spent on the project site. Travel time will not be billable.

Emergency hourly rates will continue only until 7:00 am of the next

day when regular hourly rates will resume.

D. The locations and estimated costs of the various projects are unknown. No

guarantee can be made as to the number or size of projects that may be assigned

under this contract. Quantities shown on the bid sheets shall not be construed to

represent the amount of work to be done under this contract, but rather they are to

be used only for the purpose of evaluation of bids.

E. If requested by the OWNER, perform any related extra work not covered in the

specifications, which may arise during construction on the basis of lump sum price

negotiated between the CONTRACTOR and the OWNER for said extra work.

1.2 CONTRACTS

A. The OWNER reserves the right to make multiple awards. Contractors will be

rated as the lowest responsive, responsible bidder, second responsive, responsible

bidder, and so on, based on the price and number of crews submitted in response

to the Invitation for Bids. The primary contractor will be given the first

opportunity to perform jobs available under this contract. When the primary

contractor has as many crews working as stated in his bid and an additional job is

authorized, such job will be first offered to that CONTRACTOR. If he declines

the offer, this additional job will be offered to the second contractor. This

procedure will be followed for each successive contractor.

If a CONTRACTOR fails to start performance of the work after notification to

proceed as follow in the following table, such failure shall be considered a breach

of this contract and the said job shall be offered to the next contractor in line to

receive assignment.


Assignment Type

Time to Start Assignment

After Notification

Linear Feet Work (Unit of Measure) Two Weeks

Quantity Work (Unit of Measure) Two Weeks

Hourly Work (Unit of Measure),

Regular Hours Two Hours


Overtime Hours Two Hours


Emergency Hours One Hour

Once a job is authorized, the OWNER shall determine the required starting date.

If the CONTRACTOR has fewer crews working than stated in his bid, he may

start jobs given to him prior to the required starting date as approved by the

OWNER. This will in no way allow the CONTRACTOR to delay the required

starting date of any job.

If requested by the OWNER, perform any related extra work for the assignment

not covered by plans and specifications which may arise during Linear Feet Work

(Unit of Measure), Quantity Work (Unit of Measure), Hourly Work (Unit of

Measure), or emergency repairs on the basis of a lump sum price negotiated

between the CONTRACTOR and the OWNER for said extra work.

1.3 WORK BY OTHERS

A. Work by OWNER:

1. Adjustment of fire hydrants, gas or water lines.

2. Installation or relocation of traffic signal equipment.

PART 2 PRODUCTS

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PART 3 EXECUTION

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END OF SECTION


SECTION 01012

CONTRACTOR’S USE OF PREMISES

PART 1 GENERAL

1.1 DESCRIPTION

A. Rights-of-Way

1. Confine access, operations and storage areas to rights-of-way provided by

OWNER.

2. Make all necessary arrangements, at no additional cost to the OWNER, for

temporary use of private properties. Indemnify and hold harmless the

OWNER against claims or demands arising from such use of properties

outside of rights-of-way.

3. Restrict total length which materials may be distributed along the route of

the construction at any one time to 1,000 linear feet unless otherwise

approved in writing by the OWNER.

B. Properties outside of Rights-of-Way

1. Permanent altering of properties adjacent to and along rights-of-way will not

be permitted.

2. Any damage to properties outside of rights-of-way shall be repaired or

replaced to the satisfaction of the OWNER at no additional cost to the

OWNER.

C. Use of Site

1. Assume full responsibility for protection and safekeeping of products stored

on and off premises.

2. Move stored products that interfere with the operations of OWNER or

another CONTRACTOR.

3. Obtain approvals of governing authorities prior to impeding or closing

public roads or streets. Do not close more than two consecutive

intersections at one time.


4. Notify the OWNER 48 hours prior to closing a street or a street crossing.

Obtain permits required for street closures in advance.

5. Notify the OWNER immediately prior to closing a street or a street crossing

during emergency work

6. Maintain access for emergency vehicles including access to fire hydrants.

7. Avoid obstructing drainage ditches or inlets; when obstruction is

unavoidable due to requirements of the Work, provide grading and

temporary drainage structures to maintain unimpeded flow.

8. Perform daily clean up of dirt, debris, scrap materials, and other disposable

items inside and outside the construction zone. Keep streets, driveways, and

sidewalks clean of dirt, debris and scrap materials. Do not leave building,

roads, streets or other project areas unclean overnight. Any costs incurred

by the OWNER due to the CONTRACTOR’s failure to clean up the site

will be deducted from the CONTRACTOR’s final invoice.

9. Obtain and pay for all additional storage or work areas required for

CONTRACTOR’S operations.

D. Notification to Adjacent Occupants

1. Notify individual occupants in areas to be affected by the Work of the

proposed construction and time schedule. Notification shall be not less than

48 hours or more than 2 weeks prior to work being performed within 200

feet of the homes or businesses. All public notification activities shall be

coordinated through OWNER personnel. The OWNER will provide a

sample door hanger showing form and content to be followed.

2. Notify individual occupants in areas to be affected by the emergency Work

immediately after coordinating plan of action. Continue to update individual

occupants as emergency plans change and work progresses. All public

notification activities shall be coordinated through OWNER personnel.

E. Public, Temporary, and Project Roads and Ramps

1. Construct and maintain temporary detours to provide for normal public

traffic flow when use of public roads or streets is closed by necessities of the

Work. Notify and obtain approval of City’s traffic engineer.

2. Provide mats or other means to prevent overloading or damage to existing

roadways from tracked equipment or exceptionally large or heavy trucks or

equipment.


F. Excavation in Streets and Driveways

1. Avoid hindering or needlessly inconveniencing public travel on a street or

any intersecting alley or street for more than two blocks at any one time,

except by permission of the OWNER.

2. Obtain the OWNER’s approval when the nature of the Work requires

closing of an entire street. Obtain permits required for street closure. Avoid

unnecessary inconvenience to abutting property owners.

3. Open each block for public use as work in that block is complete.

4. Avoid obstructing driveways or entrances to private property.

5. Provide temporary crossing to minimize the duration of obstruction when

drives or entrances are required by the Work to be blocked.

G. Maintenance and Protection of Traffic

1. Public Roadways:

a. Maintain traffic control as it is described in the City of Richmond’s

Work Area Traffic Control Handbooks, Volumes I and II, the General

Conditions, Special Provisions and as described herein. Where an

apparent conflict occurs between the handbooks, the General

Conditions, Special Provisions and the requirements of this Section,

the handbooks govern. The handbooks are available at the Bureau of

Traffic Engineering, 900 East Broad Street, Richmond, Virginia

23219.

b. Submit a Traffic Control Plan to the OWNER prior to work.

c. When required to cross, obstruct or temporarily close a street or

trafficway, provide and maintain suitable bridges, detours or other

approved temporary means for the accommodation of traffic.

Closings shall be for the shortest time practical, and passage shall be

restored immediately after completion of Project work.

d. Provide the required advance notice of proposed operations to the fire

and police departments.

e. Provide reasonable notice to owners or tenants of private property

who may be affected by the operations. All public notification

activities shall be coordinated through OWNER’s personnel.


f. Provide signs, signals, barricades, flares, lights and all other

equipment, service and personnel required to regulate and protect all

traffic, and warn of hazards. All such work shall conform to

requirements of the OWNER. Coordinate activities with the

OWNER. Remove temporary equipment and facilities when no

longer required; restore grounds to original, or to specified

conditions.

g. Maintain at all times a 10-foot-wide all-weather lane adjacent to work

areas which shall be kept free of equipment and debris and shall be

for the use of emergency vehicles, or as otherwise provided in the

traffic control plan.

h. Prevent obstruction of the normal flow of traffic from 7 a.m. to 9 a.m.

and 4 p.m. to 6 p.m. on designated major roadways or as directed by

the OWNER.

i. Cleanliness of Surrounding Streets:

(1) Keep streets used for entering or leaving the job area free of

material, debris, and any foreign material resulting from project

operations.

2. Residential Entrances:

a. Maintain local driveway access to residential and commercial

properties adjacent to work areas at all times.

3. Traffic Signals and Signs:

a. Provide and operate traffic control and directional signals required to

direct and maintain an orderly flow of traffic in all areas under

CONTRACTOR's control, or affected by CONTRACTOR's

operations. All such work shall conform to the requirements in the

Virginia Department of Transportation (VDOT) Standards.

b. Provide traffic control and directional signs, mounted on barricades

or standard posts:

(1) At each change of direction of a roadway and at each

crossroad.

(2) At detours and hazardous areas.

(3) At parking areas.


4. Flagpersons:

a. Provide certified and suitably equipped flagpersons when

construction operations encroach on traffic lanes, as required for

regulation of traffic and in accordance with the requirements of the

OWNER.

b. Where a railroad flagperson is required, it is the CONTRACTOR’s

responsibility to coordinate with the City the days when they will be

working within or adjacent to the railroad. The City will coordinate

the initial contact with the railroad company and the contractor will

be responsible to coordinate daily activities with the flagperson.

5. Flares and Lights:

a. Provide flares and lights during periods of low visibility:

(1) To clearly delineate traffic lanes, to guide traffic and to warn of

hazardous areas.

(2) For use by flagpersons in directing traffic.

b. Provide illumination of critical traffic and parking areas.

6. Parking Control:

a. Control all CONTRACTOR related vehicular parking within the

limits of the Work to preclude interference with public traffic or

parking, access by emergency vehicles, OWNER’s operations, or

construction operations. CONTRACTOR related vehicular parking is

not to be within median strips unless approved by the OWNER.

CONTRACTOR related vehicular parking within median strips shall

be allowed when the Work is within the median strip. Provide

temporary parking facilities for the public as may be required because

of construction or operations.

b. Monitor parking of all construction and private vehicles:

(1) Maintain free vehicular access to and through parking areas.

(2) Prohibit parking on or adjacent to access roads, or in non-

designated areas.


7. Site Control

a. CONTRACTOR personnel to remain at all times at open project site.

This includes, but is not limited to all break times.

H. Site Restoration

1. Provide site restoration as specified in Section 02110 – Clearing, Grubbing

and Site Restoration.

I. City Water

1. The CONTRACTOR shall obtain water required for cleaning by connection

to City fire hydrants, provided the connection is made in accordance with

City requirements. Provide notice to City Agencies prior to withdrawing

water from the hydrants. The CONTRACTOR shall obtain a portable water

meter from the City’s Department of Public Utilities and attach a RPZ

backflow preventer to the meter in accordance with City standards. A

$500.00 deposit for the meter is paid to the City’s Department of Public

Utilities. The contractor will pay the Department of Public Utilities for

water usage at established rates. Contact the City’s Department of Public

Utilities, Special Billing department (804 646-5270) for current water rates.

Support meter and backflow preventer so as to not damage hydrants. Be

responsible for any damage resulting from improper operation of hydrants.

Do not use or obstruct a fire hydrant when there is a fire in the area.

Remove water meters, fittings, and piping from fire hydrants at the end of

each working day.

PART 2 PRODUCTS

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PART 3 EXECUTION

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END OF SECTION


SECTION 01035

CHANGE ORDER AND WORK ORDER PROCEDURES

PART 1 GENERAL

1.1 SECTION INCLUDES

A. Definitions

B. Change Orders

C. Work Orders

1.2 DEFINITIONS

A. Change Order: A document which is signed by the CONTRACTOR and OWNER

and authorizes an addition, deletion, or revision in the work or an adjustment in

the Contract Price or the Contract Times, issued on or after the effective Date of

the Agreement.

B. Work Order: Work Order is a written directive to the CONTRACTOR issued on or

after the effective date of the agreement; signed by the OWNER, ordering an

addition, deletion, or revision in the Work.

1.3 CHANGE ORDERS

A. Initiation of Proposals:

1. From time to time, the OWNER may issue a Request for a Change Order

Proposal. The Request will contain a description of the intended change

with supplementary or revised Drawings and Specifications as applicable,

and the projected time for accomplishing the change.

2. The CONTRACTOR may propose a change in the Work by submittal of a

Change Order Request to the OWNER describing the proposed change with

a statement of the reason for the change and the effect on the Contract time

and price, along with supporting documentation.

3. Change Orders shall be in accordance with the PART 2 – GENERAL

CONDITIONS OF THE CONTRACT.


B. Execution of Change Order Proposal:

1. When a Proposal is requested for changed work, submit proposal within 14

days following receipt of the Request from OWNER. State the increase or

decrease, if any, in Contract Completion Time and Contract Price.

2. Explain proposal in sufficient detail to permit review by OWNER.

3. For Omitted Work the decrease in the Contract Price will be determined by

the OWNER and will include appropriate amounts for profit and overhead.

4. The OWNER will review the Proposal and may request additional

information and documentation. Provide these items upon request.

5. If the OWNER decides to proceed with the change, the OWNER will issue a

Change Order for signature first by the CONTRACTOR and then by the

OWNER.

6. CONTRACTOR to promptly complete the approved change in the Work on

receipt of the executed Change Order. Failure to sign the Change Order

does not relieve the CONTRACTOR from performing the Work if the

Change Order is signed by the OWNER.

C. Compute the cost of both additive and deductive changes in the Work in

accordance with these specifications and as follows:

1. Include, the costs of labor, foreman and operator performing or directly

supervising the changed Work on the site. Include travel and subsistence,

but only to the extent incurred.

2. To the labor cost add all net premium for Workman's Compensation, taxes

pursuant to the Federal Social Security Act, and payments required under

State and Federal unemployment laws.

3. Include rent for plant and equipment at unit rental costs for similar rentals

from an independent firm (i.e. a firm which is not owned in whole or in part

by the CONTRACTOR). If equipment is owned by CONTRACTOR or

rented from a firm in which the CONTRACTOR has an interest, calculate

the rent in accordance with the applicable provisions and terms of the

current "Cost Reference Guide for Construction Equipment" published by

Equipment Watch.

1.4 WORK ORDERS

A. Estimate: OWNER will require an estimate of cost and project schedule for

project work prior to issuance of a Work Order.


B. Initiation by OWNER: OWNER may issue a Work Order with a Notice to

Proceed without a prior Request for a Change Order Proposal or the

CONTRACTOR's signature.

C. Notify and coordinate with OWNER on all project work schedules on a daily

basis.

D. Payment Determination: The OWNER will designate the method of determining

the amount of compensation or credit, if any, based on one of the methods

contained in these specifications.

E. Timing: Proceed with the change in the Work immediately upon receipt of the

Work Order.

F. Addition to Contract: The Work Order will be incorporated into the Contract

Documents via a Change Order at a later date.

PART 2 PRODUCTS

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PART 3 EXECUTION

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END OF SECTION


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SECTION 01040

PROJECT COORDINATION

PART 1 GENERAL

1.1 SCOPE

A. As more fully set forth in the General Conditions, be solely responsible for

coordination of all of the Work. Supervise, direct and cooperate fully with all

Subcontractors, manufacturers, fabricators, suppliers, distributors, installers,

testing agencies and all others whose services, materials or equipment are required

to ensure completion of the Work within the Contract Time. Provide a

CONTRACTOR representative at the work site at all times if a Subcontractor is

providing the Work.

B. Cooperate with and coordinate Work with the work of any other CONTRACTOR,

utility service company or OWNER’s employees performing additional work

related to the Project at the site.

1. Notify the proper City agency at least 48 hours prior to the time set for work

involving their facilities or equipment or as otherwise directed by OWNER.

a. Department of Public Utilities: Actual adjustment of fire hydrants,

gas or water lines will be made by personnel of this Department.

C. Be responsible for damage done by others not under his jurisdiction.

D. Coordinate Work with the work of others to assure compliance with schedules.

E. Attend and participate in all project meetings and report on the progress of all

Work and compliance with schedules.

F. Provide a list of contact names and contact numbers (phone [office, work], cell

phone, pager, etc.) for regular, overtime and emergency project work. Update list

when changes occur with personnel.


PART 2 PRODUCT

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PART 3 EXECUTION

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END OF SECTION


SECTION 01070

ABBREVIATIONS AND SYMBOLS

PART 1 GENERAL

1.1 ABBREVIATIONS

A. Common abbreviations which may be found in the Specifications are:

alternating current a-c Fahrenheit F

ante meridiem am feet ft

ampere A feet per hour fph

average avg feet per minute fpm

feet per second fps

figure Fig

biochemical oxygen BOD flange flg

demand foot-pound ft-lb

brake horsepower bhp

British thermal unit Btu gallon gal

gallons per minute gpm

Centigrade C gallons per second gps

company Co gram g

cubic inch cu in

cubic foot cu ft Hertz Hz

cubic yard cy hour hr

cubic feet per minute cfm horsepower hp

cubic feet per second cfs

decibel db inch in.

inch-pound in.-lbdegree Centigrade (or

Celsius) (say)

20 C

identification number ID

inside diameter id

degree Fahrenheit (say) 68 F infiltration and inflow I/I

diameter diam

direct current d-c kilovolt-ampere kva

dollars $ kilowatt kw

kilowatt-hour kwhr

each ea

efficiency eff linear foot lf

liter l

manhole MH

maximum max

mercury Hg

revolutions per

minute

rpm


milligram mg second sec

milligrams per liter mg/l specific gravity sp gr

milliliter ml square sq

millimeter mm square foot sq ft

million gallon mil square inch sq in

square yard symillion gallons per

day

mgd

standard std

minimum min standard cubic feet

per minute

scfm

total dynamic head tdhnet positive suction

head

npsh

number No.

totally-enclosed-

fan-cooled

tefc

National Pipe Threads NPT

ounce oz volt v

outside diameter od vertical foot vf

parts per million ppm

post meridiem pm

pound lb

pounds per square foot psf

pounds per square inch psi

pounds per square inch

absolute

psia

pounds per square inch

gage

psig

1.2 ORGANIZATION ABBREVIATIONS

A. Abbreviations of organizations and programs which may be used in these

Specifications are:

ACS American Chemical Society

ACI American Concrete Institute

AGMA American Gear Manufacturers Association

AIChE American Institute of Chemical Engineers

ANSI American National Standards Institute

APHA American Public Health Association

ASTM American Society for Testing and Materials

ASCE American Society of Civil Engineers

ASME American Society of Mechanical Engineers

AWWA American Water Works Association

CRSI Concrete Reinforcing Steel Institute

EPA Environmental Protection Agency


FM Factory Mutual

HEW Department of Health, Education and Welfare

HUD Department of Housing and Urban Development

ISO Insurance Services Office

MACP Manhole Assessment and Certification Program

NASSCO National Association of Sewer Service Companies

NFPA National Fire Protection Association

NSF National Sanitation Foundation

PACP Pipeline Assessment and Certification Program

PCI Precast Concrete Institute

UL Underwriters' Laboratories, Inc.

USGS United States Geological Survey

USPHS United States Public Health Service

VDOT Virginia Department of Public Transportation

VOSH Virginia Occupational Safety and Health

WWEMA Water and Wastewater Equipment Manufacturers Association

PART 2 PRODUCTS

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PART 3 EXECUTION

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END OF SECTION


SECTION 01072

REFERENCE STANDARDS

PART 1 GENERAL

1.1 SCOPE

A. When a reference standard is specified, comply with requirements and

recommendations stated in that standard, except when they are modified by the

Contract Documents, or when applicable laws, ordinances, rules, regulations or

codes establish stricter standards. The latest provisions of applicable standards

shall apply to the Work, unless otherwise specified. Reference standards include,

but are not necessarily limited to, the following:

1. American Association of State Highway and Transportation Officials.

2. American Concrete Institute.

3. American Gear Manufacturers Association.

4. American National Standards Institute.

5. American Society of Mechanical Engineers.

6. American Society for Testing and Materials.

7. American Water Works Association.

8. Concrete Reinforcing Steel Institute.

9. Factory Mutual Association.

10. Virginia Occupational Safety and Health.

11. National Fire Protection Association.

12. Prestressed Concrete Institute.

13. Underwriters' Laboratories, Inc.

14. City of Richmond Department of Public Utilities, Sanitary Sewer System

Design Guidelines and Standard Specifications and Details

15. City of Richmond Department of Public Works, Standards Manual

16. All other applicable standards listed in the Specifications, and the standards

of utility service companies, where applicable.

PART 2 PRODUCTS

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PART 3 EXECUTION

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END OF SECTION


SECTION 01073

DEFINITIONS

PART 1 GENERAL

1.1 DEFINITIONS

A. As used in these specifications, the following terms shall have these assigned

meanings.

1. Approved, Authorized, Directed, Ordered, Required: When the above

words are used in these specifications without further definition the words

“by the OWNER” shall be implied.

2. Obstruction Removal: Clearing the sewer main of obstructions to allow for

CCTV, cleaning and/or rehabilitation.

3. Sewer Lines: Gravity flow pipe lines in the easement or right-of -way

which collect sanitary sewer discharges from commercial or residential

service lines and discharge into another sewer line (main or collector), lift

station, or treatment plant.

4. Service Lines: Those gravity flow sewer lines from commercial or

residential property which discharge into a sewer line.

5. Special Provisions: Special Provisions are additional instructions or

specifications and if in conflict with these General Specifications then the

requirements of the Special Provisions shall apply.

PART 2 PRODUCTS

Not Used

PART 3 EXECUTION

Not Used

END OF SECTION


SECTION 01150

MEASUREMENT AND PAYMENT

PART 1 GENERAL

1.1 DESCRIPTION

A. The items listed below beginning with Paragraph 1.7, refer to and are the same pay

items listed in the Bid Form. They constitute all of the pay items for the

completion of the Work. No direct or separate payment will be made for

providing miscellaneous temporary or accessory works, plant, services,

CONTRACTOR'S field office, layout surveys, job signs, sanitary requirements,

testing, safety devices, approval and record drawings, water supplies, power,

maintaining traffic, removal of waste, watchmen, flagman, bonds, insurance, and

all other requirements of the General Conditions. Compensation for all such

services, equipment and materials shall be included in the prices stipulated for the

unit price pay items listed herein.

B. Each unit bid price will be deemed to include an amount to be adequate to cover

CONTRACTOR's overhead and profit for each separately identified item.

1.2 UNIT PRICE PAY ITEMS

A. The estimated number of bid units for Contract Items, as listed in the Price

Schedule on the Bid Form, are approximate only and are included solely for the

purpose of comparison of Bids. The OWNER does not expressly or by implication

agree that the estimated number of units will correspond with the number of units

actually needed and reserves the right to increase or decrease any quantity or to

eliminate any quantity as the OWNER may deem necessary. Except as provided

in Paragraph 1.3, CONTRACTOR or the OWNER will not be entitled to any

adjustment in a unit bid price as a result of any change in an estimated quantity

and agrees to accept the aforesaid unit bid prices as complete and total

compensation for any additions caused by changes or alterations in the Work

ordered by the OWNER.

B. Additional Bid Items/Force Account Items - Extra Work:

1. General - Work not covered by Contract Items necessary for the completion

of the work, or proposed emergency construction may be considered as

extra work and will be paid for under terms of Additional Bid Items/Force

Account Items or, for items not listed in the Additional Bid Items, by the

change order procedure given in Section 01035 – Change Order and Work

Order Procedures.


2. The amount paid to the CONTRACTOR as provided in the preceding

paragraphs shall be understood to include full compensation for any and all

expenses incurred by the CONTRACTOR and his Subcontractors in

connection with the Additional Bid Items/Force Account work. The

aforementioned component costs shall be as follows:

a. The cost of labor, including foremen, for the time actually engaged on

the Additional Bid Items/Force Account work. CONTRACTOR’s

workers will be compensated at the rate of their duty performed (i.e.

A foreman working as an operator would be compensated by the

OWNER as an operator.)

b. The cost of materials furnished, other than those, if any, furnished by

the OWNER, incorporated into, or necessarily used in the prosecution

of, the Additional Bid Items/Force Account work less the salvage

value of any materials salvaged upon completion of such work.

c. The cost of the use of equipment on the Additional Bid Items/Force

Account work, will be calculated at the Additional Bid Items/Force

Account Item rates. If the equipment is rented, the cost thereof shall

be considered full compensation for carrying charges and all other

related costs, and be based on the current Cost Reference Guide by

Equipment Watch. Equipment used on Additional Bid Items/Force

Account work shall be of the proper size and type. If, however,

equipment of unwarranted size or type and cost used, the cost of the

use of such equipment shall be calculated at the rental rate for

equipment of the proper size and type.

d. Additional Bid Items/Force Account Items price shall be considered

full compensation for profit, tools, plant, depreciation, overhead,

superintendence, and the costs of the bond for faithful performance

and of the bond for materials and labor.

e. The amounts paid in compliance with the United States Social

Security Act, and for Workmen’s Compensation Insurance.

f. The amounts paid in compliance with the State of Virginia Retail

Sales Act.

1.3 ADJUSTMENT OF UNIT PRICES FOR INCREASE OR DECREASE OF

ESTIMATED QUANTITIES

A. For bid items paid for on a unit price basis, increases or decreases in the quantity

of an item of Work will be determined by comparing the total payable quantity of

Work with the unit price pay items as shown in the Price Schedule.


B. If the total payable quantity of any unit price item of Work varies from the unit

price pay items by more than 25 percent, the unit price of that item will be a

subject of review by the OWNER. Only those items which have an as-bid

computed total value of 5 percent or more of the sum of the as-bid computed total

values of all items bid are subject to review by the OWNER. If warranted, an

equitable adjustment will be made by means of a Change Order to credit the

OWNER with any reduction in cost or to compensate CONTRACTOR for any

increase in cost resulting from the change in quantity. This review of the

adjustment will be made at a time the OWNER deems reasonable and proper.

C. Payment for any unit price item of Work, which has an as-bid computed total

value of less than 5 percent of the sum of the as-bid computed total values of all

items bid, will be made at the unit price bid regardless of an increase or decrease

in quantity.

1.4 RELATED PROVISIONS

A. Payments to CONTRACTOR: Refer to General Conditions and Agreement.

B. Changes in Contract Price: Refer to General Conditions and

Section 01035 – Change Order And Work Order Procedures.

1.5 NONCONFORMANCE ASSESSMENT

A. Remove and replace the Work, or portions of the Work, not conforming to the

Contract Documents.

1.6 NONPAYMENT FOR REJECTED PRODUCTS

A. Payment will not be made for any of the following:

1. Products wasted or disposed of in a manner that is not acceptable to the

OWNER.

2. Products determined as nonconforming before or after the work are

completed.

3. Products not completely unloaded from transporting vehicle.

4. Products placed beyond the lines and levels of the required Work.

5. Products remaining on hand after completion of the Work, unless specified

otherwise.


1.7 APPLICATION FOR PAYMENT

A. At the end of the each workday, provide the OWNER with a daily report with

equipment used, total equipment hours, personnel list and title, hours for each

employee, linear footage completed, assignment reference number and project

title. Once the OWNER signs the daily log, provide a copy to the OWNER before

leaving the site.

B. Submit via email one copy of each application for payment on the Application for

Payment form in Exhibit A.

C. Submit application for payment to the OWNER on a bi-weekly basis.

1.8 CONTRACT ITEMS

A. Contract Items 1 through 6 - Light Sewer Cleaning (Pipe Size of 6-inch to 72-

inch):

1. Description: Under the Contract Item for Light Sewer Cleaning of 6- to 72-

inch diameter pipe furnish all labor, materials, equipment and services to

provide light sewer cleaning, together with all associated and appurtenant

Work as specified or directed by the OWNER. The Work includes all sewer

flow bypassing and bypass pumping, removal and disposal of material,

transportation and disposal fees, traffic control and appurtenant Work, all

complete in accordance with the requirements in Section 02760 – Cleaning

of Sewers. CCTV inspection of sewers is not included under this Contract

item and will be paid under the Contract Items for Survey CCTV Inspection

of Sewer Pipe.

2. Measurement for Payment: The length of light sewer cleaning of 6- to 72-

inch diameter pipe to be measured under Contract Item 1 through 6 will be

the actual length of light sewer cleaning provided in the Work and accepted,

measured from the centerline of the manhole to the centerline of the

manhole along the centerline of the pipeline. The payment for light

cleaning of rectangular or irregular shaped pipes shall be based on the total

linear feet of pipeline cleaned and the size of the pipe with compensation

provided by a light cleaning unit price with an equivalent cross sectional

area. Light sewer cleaning which is rejected or withdrawn will not be

measured for payment.

3. Payment: Payment for the light sewer cleaning of 6- to 72-inch diameter

pipe will be made at the Contract unit price per linear foot of Contract Item

1 through 6. Each manhole to manhole reach shall be paid once by either

light cleaning or heavy sewer cleaning, not both.


B. Contract Items 7 through 12 - Heavy Sewer Cleaning (Pipe Size of 6-inch to 72-

inch):

1. Description: Under the Contract Item for Heavy Sewer Cleaning of 6- to

72-inch diameter pipe furnish all labor, materials, equipment and services to

provide heavy sewer cleaning, together with all associated and appurtenant

Work as specified or directed by the OWNER. The Work includes all sewer

flow bypassing and bypass pumping, removal and disposal of material,

transportation and disposal fees, traffic control and appurtenant Work, all

complete in accordance with the requirements in Section 02760 – Cleaning

of Sewers. CCTV inspection of sewers is not included under this Contract

item and will be paid under the Contract Items for Survey CCTV Inspection

of Sewer Pipe.

2. Measurement for Payment: The length of heavy sewer cleaning of 6- to 72-

inch diameter pipe to be measured under Contract Item 7 through 12 will be

the actual length of heavy sewer cleaning provided in the Work and

accepted, measured from the centerline of the manhole to the centerline of

the manhole along the centerline of the pipeline. The payment for heavy

cleaning of rectangular or irregular shaped pipes shall be based on the total

linear feet of pipeline cleaned and the size of the pipe with compensation

provided by a heavy cleaning unit price with an equivalent cross sectional

area. Heavy sewer cleaning which is rejected or withdrawn will not be

measured for payment.

3. Payment: Payment for the heavy sewer cleaning of 6- to 72-inch diameter

pipe will be made at the Contract unit price per linear foot of Contract Item

7 through 12. Each manhole-to-manhole reach shall be paid once by either

light cleaning or heavy sewer cleaning, not both.

C. Contract Items 13 through 18 - Survey CCTV Inspection of Sewer Pipe (Pipe Size

of 6-inch to 72-inch):

1. Description: Under the Contract Item for closed-circuit television

inspection of 6- to 72-inch diameter pipe furnish all labor, materials,

equipment and services to provide closed-circuit television inspection,

together with all associated and appurtenant Work as specified or directed

by the OWNER. The Work includes all sewer flow bypassing and bypass

pumping, traffic control and appurtenant Work, all complete in accordance

with the requirements in Section 02651 – Television Inspection. The Work

may include raising paved over or buried manholes and replacing manhole

frames and covers for inspection which will be paid under the Contract

Items 45, 46 and 47 for manhole frame and cover replacement and manhole

risers, respectively.


2. Measurement for Payment: The length of closed-circuit television

inspection of 6- to 72-inch diameter pipe to be measured under Contract

Item 13 through 18 will be the actual length of closed-circuit television

inspection provided in the Work and accepted, measured from the centerline

of the manhole to the centerline of the manhole along the centerline of the

pipeline. Closed-circuit television inspection that is rejected or withdrawn

will not be measured for payment. Payment will not be made for the

following:

a. Poor or unacceptable quality videos.

b. Re-televising any pipeline segment without prior approval of the

OWNER.

c. Portions of the pipeline through which the camera could not pass.

d. Inadequate pipeline flow control.

3. Payment: Payment for the closed-circuit television inspection of 6- to 72-

inch diameter pipe will be made at the Contract unit price per linear foot of

Contract Item 13 through 18. The payment for survey CCTV inspection of

rectangular or irregular shaped pipes shall be based on the total linear feet of

pipe inspected and the size of the pipe with compensation provided by a

survey CCTV inspection unit price with an equivalent cross sectional area.

D. Contract Item 19 - Survey CCTV Inspection of 3-inch to 8-inch Lateral Pipe:

1. Description: Under the Contract Item for closed-circuit television

inspection of 3- to 8-inch diameter pipe furnish all labor, materials,

equipment and services to provide closed-circuit television inspection using

lateral launch camera, together with all associated and appurtenant Work as

specified or directed by the OWNER. The Work includes all sewer flow

bypassing and bypass pumping, traffic control and appurtenant Work, all

complete in accordance with the requirements in Section 02651 –

Television Inspection. The Work may include raising paved over or buried

manholes and replacing manhole frames and covers for inspection which

will be paid under the Contract Items 56, 57 and 58 for manhole frame and

cover replacement and manhole risers, respectively.

2. Measurement for Payment: The length of closed-circuit television

inspection of 3- to 8-inch diameter lateral pipe to be measured under

Contract Item 19 will be the actual length of closed-circuit television

inspection provided in the Work and accepted, measured from the service

lateral connection at sewer main to the property line along the centerline of

the lateral pipeline. Closed-circuit television inspection that is rejected or


withdrawn will not be measured for payment. Payment will not be made for

the following:



OWNER.

c. Portions of the pipeline through which the camera could not pass.

d. Inadequate pipeline flow control.

3. Payment: Payment for the closed-circuit television inspection of 3- to 8-

inch diameter lateral pipe will be made at the Contract unit price per linear

foot of Contract Item 19. The payment for survey CCTV inspection of

rectangular or irregular shaped pipes shall be based on the total linear feet of

pipeline inspected and the size of the pipeline with compensation provided

by a survey CCTV inspection unit price with an equivalent cross sectional

area.

E. Contract Items 20 through 22 – Combination Vacuum/Jet Truck and Crew for

Collection System Work, Regular, Overtime, and Emergency Hours:

1. Description: Regular, Overtime, and Emergency Hours are defined in

accordance with the requirements in Section 01011 – Summary of Work.

Work ordered by the OWNER on an hourly basis to include all labor,

supervision, materials, equipment, insurance, taxes, traffic control, bypass

pumping, hoses and connectors, removal and disposal of material,

transportation and disposal fees, and services to provide a combination

vacuum/jet truck and crew, together with all associated and appurtenant

Work as specified or directed by the OWNER. The Work shall be in

accordance with the requirements in Section 02760 – Cleaning of Sewers.

2. Measurement for Payment: The hours of Combination Vacuum/Jet Truck

and Crew for Collection System Work to be measured under Contract Item

20 through 22 will be the actual hours of Jet Truck and Crew Work on site

performing the Work authorized by the OWNER. Travel time to the jobsite

will not be billable.

3. Payment: Payment for the Combination Vacuum/Jet Truck and Crew for

Collection System Work will be made at the Contract unit price per hour for

Contract Item 20 through 22.


F. Contract Items 23 through 25 - CCTV Truck and Crew for Collection System

Work, Regular, Overtime, and Emergency Hours:

1. Description: Under the Contract Item for CCTV Truck and Crew for

Collection System Work, Regular, Overtime, and Emergency Hours,

Regular, Overtime, and Emergency Hours are defined in accordance with

the requirements in Section 01011 – Summary of Work. Work ordered by

the OWNER on an hourly basis to include all labor, supervision, materials,

equipment, insurance, taxes, traffic control, bypass pumping, hoses and

connectors, pipe removal and disposal of material, transportation and

disposal fees, and services to provide a CCTV truck and crew, together with

all associated and appurtenant Work as specified or directed by the

OWNER. The Work shall be in accordance with the requirements in

Section 02651 – Television Inspection.

2. Measurement for Payment: The hours of CCTV Truck and Crew for

Collection System Work to be measured under Contract Item 23 through 25

will be the actual hours of CCTV Truck and Crew are on site performing the

Work authorized by the OWNER. Travel time to the jobsite will not be

billable. Closed-circuit television inspection that is rejected or withdrawn

will not be measured for payment. Payment will not be made for the

following:



OWNER.

c. Inadequate pipeline flow control.

3. Payment: Payment for the CCTV Truck and Crew for Collection System

Work will be made at the Contract unit price per hour of Contract Item 23

through 25.

G. Contract Item 26 – Clearing, Grubbing, and Site Restoration:

1. Description: Under the Contract Item for Clearing, Grubbing, and Site

Restoration for Access to Manholes ordered by the OWNER on a square

yard basis to include all labor, supervision, materials, equipment, insurance,

taxes, traffic control, pipe removal and disposal of material, transportation

and disposal fees, with all associated and appurtenant Work as specified or

directed by the OWNER. The Work shall be in accordance with the

requirements in Section 02110 – Clearing, Grubbing, and Site Restoration.


2. Measurement: The quantity of clearing, grubbing and site restoration will

be the computed number of square yards placed in the limits as shown,

specified or ordered by the OWNER. No payment will be made for clearing

and grubbing carried beyond the grades specified or ordered. No payment

will be made for site restoration for damage from the CONTRACTOR’s

negligence.

3. Payment: The unit price per square yard for Contract Item 26 will be full

compensation for providing all labor, materials, equipment, tools, and

incidentals required to perform all clearing, grubbing and site restoration, as

shown, specified, ordered by the OWNER, and required to complete the

Work in every respect.

H. Contract Items 27 through 29 - Chemical Root Treatment, 3-inch through 36-inch

Sewer Pipe:

1. Description: Under the Contract Item for Chemical Root Treatment, 3-inch

through 36-inch Sewer Pipe furnish all labor, materials, equipment and

services to provide application of chemical root treatment, together with all

associated and appurtenant Work as specified or directed by the OWNER.

The Work includes all sewer flow bypassing and bypass pumping, removal

and disposal of material, transportation and disposal fees, traffic control and

appurtenant Work, all complete in accordance with the requirements in

Section 02760 – Cleaning of Sewers.

2. Measurement: The quantity of sewer treated with chemical root treatment

will be measured in linear feet from centerline of manhole to centerline of

manhole horizontally along the centerline of the treated pipes.

3. Payment: The payment for sewer pipes treated shall be based on the linear

feet of pipeline where chemical root treatment is used. The unit price per

linear foot for Contract Item 27 through 29 will be full compensation for

providing for all labor, traffic control, bypass pumping, materials,

equipment, tools and incidentals for sewer treated with chemical root

treatment of pipe sizes of 3 through 36 inches. The unit price per linear foot

shall also include a post TV inspection one year after application to verify

effectiveness, reconstruction of manholes or repair to manholes damaged by

the work.

I. Contract Items 30 through 32- Chemical Grease Treatment, 3-inch through 36-

inch Sewer Pipe:

1. Description: Under the Contract Item for Chemical Grease Treatment, 3-

inch through 36-inch Sewer Pipe furnish all labor, materials, equipment and

services to provide application of chemical grease treatment, together with


all associated and appurtenant Work as specified or directed by the

OWNER. The Work includes all sewer flow bypassing and bypass

pumping, removal and disposal of material, transportation and disposal fees,

traffic control and appurtenant Work, all complete in accordance with the

requirements in Section 02760 – Cleaning of Sewers.

2. Measurement: The quantity of chemical grease treatment will be measured

in linear feet from centerline of manhole to centerline of manhole

horizontally along the centerline of the treated pipes.

3. Payment: The payment for sewer pipes treated shall be based on the linear

feet of pipeline where chemical grease treatment used. The unit price per

linear foot for Item 30 through 32 will be full compensation for providing

for all labor, traffic control, bypass pumping, materials, equipment, tools

and incidentals for chemical grease treatment for pipe sizes of 3 to 36

inches. The unit price per linear foot shall also include reconstruction of

manholes or repair to manholes damaged by the work.

J. Contract Items 33 and 34 – Manhole Inspection:

1. Description: Under the Contract Item for Manhole Inspection furnish all

labor, materials, equipment, and services to provide remote above-ground

inspection of manhole and connecting sewer pipes, together with all

associated and appurtenant Work as specified or directed by the OWNER.

The Work includes all sewer flow bypassing and bypass pumping, traffic

control and appurtenant Work, all complete in accordance with the

requirements in Section 02652 – Sewer Manhole Inspection. The Work may

include raising paved over or buried manholes and replacing manhole

frames and covers for inspection which will be paid under the Contract

Items 45, 46 and 47 for manhole frame and cover replacement and manhole

risers, respectively.

2. Measurement: Payment will be based on each manhole inspected.

3. Payment: The unit price per manhole for Item 33 and 34will be full

compensation for providing for all labor, traffic control, bypass pumping,

materials, equipment, tools, and incidentals for inspecting manholes. The

unit price shall also include reconstruction of manholes or repair to

manholes damaged by the work.

K. Contract Item 35 - Sewer Smoke Testing:

1. Description: Under the Contract Item for Sewer Smoke Testing, furnish all

labor, materials, equipment, supervision and services to provide sewer

smoke testing, together with all associated and appurtenant Work as


specified or directed by the OWNER. The Work includes all sewer flow

bypassing and bypass pumping, traffic control, and appurtenant Work, all

complete in accordance with the requirements in Section 02653 – Sewer

Smoke Testing.

2. Measurement: The payment will be based on each manhole location where

smoke testing is performed.

3. Payment: The unit price per smoke testing location for Item 34 will be full

compensation for providing for all labor, traffic control, bypass pumping,

materials, equipment, tools and incidentals for sewer smoke testing. The

unit price shall also include reconstruction of manholes or repair to sewers

and manholes damaged by the work.

L. Contract Item 36 – Sewer Dyed-Water Testing:

1. Description: Under the Contract Item for Sewer Dyed-Water testing,

furnish all labor, materials, equipment and services to provide sewer dyed-

water testing, together with all associated and appurtenant Work as specified

or directed by the OWNER. The Work includes coordination with the

OWNER and other utilities, traffic control, and appurtenant Work, all

complete in accordance with the requirements in Section 02654 – Sewer

Dyed – Water Testing.

2. Measurement: Method of payment will be based on each dye introduction

location where dyed-water testing is performed.

3. Payment: The unit price per dyed-water testing location for Item 35 will be

full compensation for providing for all labor, traffic control, materials,

equipment, tools, and incidentals for sewer dyed-water testing. The unit

price shall also include repair of any sewer or manhole damages and public

or private property damages caused by testing.

M. Contract Items 37 through 42 – Flooded Sewer Dyed-Water Testing:

1. Description: Under the Contract Item for Flooded Sewer Dyed-Water

testing, furnish all labor, materials, equipment and services to provide

flooded sewer dyed-water testing, together with all associated and

appurtenant Work as specified or directed by the OWNER. The Work

includes coordination with the OWNER and other utilities, traffic control,

and appurtenant Work, all complete in accordance with the requirements in

Section 02654 – Sewer Dyed – Water Testing.

2. Measurement: Method of payment will be based on linear feet of the pipe



manhole along the centerline of the pipes for which flooded dyed-water

testing is performed.

3. Payment: The unit price per flooded dyed-water testing location for Items

36 through 41 will be full compensation for providing for all labor, traffic

control, materials, equipment, tools, and incidentals for flooded sewer dyed-

water testing. The unit price shall also include repair of any sewer or

manhole damages caused by testing.

N. Contract Items 43 through 45 - VDOT Number 57, 21 and 3 Stone:

1. Description: Under the Contract Items for VDOT Number 57, 21 and 3

Stone, for Work ordered by the OWNER on a ton basis to include all labor,

supervision, materials, equipment, to provide but not limited to

transportation and delivery of material and equipment, spreading and

constructing of roads, including compaction, removal and disposal if

directed by the OWNER, together with all associated and appurtenant Work

as specified or directed by the OWNER.

2. Measurement: Measurement shall be made by ton.

3. Payment - Under this Item, furnish, transport, placement and compaction of

VDOT Number 57, 21 and 3 Stone which may be required as directed by the

OWNER, including disposal of road bed material and all labor and

equipment. Only material that has been ordered in writing and approved by

the OWNER will be paid for under this Item. Purchase weigh tickets must

be provided to OWNER.

O. Contract Items 46 and 47 - Manhole Frame and Cover Replacement:

1. Measurement: Method of payment will be determined on the actual number

of manhole frames and covers or gasketed covers removed and installed by

the CONTRACTOR.

2. Payment: The payment for manhole frames and covers shall be based on

the unit price per actual number of manhole frames and covers removed and

replaced. The unit price per actual number of frame and cover replacement

shall be based on full compensation for providing all labor, materials,

mobilization, equipment, tools, and incidentals for removing, replacing, and

disposing of existing manhole frames and covers, pickup and delivery to the

job site, adjusting the covers to meet existing grade including fill material,

installing a rubberized sealing system, repairing all damaged pavement, and

any other incidentals required to complete the work as specified in Section

02652 – Sewer Manhole Inspection.


P. Contract Item 48 - Manhole Frame Risers:

1. Measurement: Method of payment will be determined based on the length

in inches of manhole frame risers installed.

2. Payment: The payment for manhole frame risers shall be based on the unit

price per inch of manhole frame risers installed. The unit price per inch of

manhole frame risers shall be based on full compensation for providing all

labor, materials, mobilization, equipment, tools, and incidentals for

installation of manhole risers, pickup and delivery to the jobsite, adjusting

the covers to meet existing grade including fill material, installing a

rubberized sealing system, repairing all damaged pavement, and any other

incidentals required to complete the work as specified in Section 02652 –

Sewer Manhole Inspection.

Q. Contract Items 49 - Allowance for Railroad Flagging Services:

1. Description: Under the Contract Item for Allowance for Railroad Flagging

Services, the Contractor shall pay the railroad companies for providing

flagging services as requested by these companies to perform the Work.

2. Measurement: Method of payment will be determined based on the lump

sum amount paid for railroad flagging services.

3. Payment: The payment for railroad flagging services will be based on the

CONTRACTOR’s documented payments to railroad companies for

providing flagging services during the Work. The CONTRACTOR shall

provide the receipt to the OWNER in order to receive reimbursement from

the OWNER plus 10% overhead costs to coordinate work with and

administer payments to the railroad companies.

R. Contract Items 50 - Allowance for Railroad Protective Insurance:

1. Description: Under the Contract Item for Allowance for Railroad Protective

Insurance, the CONTRACTOR shall pay for acquiring and maintaining the

railroad insurance in accordance with the terms and conditions of the

railroad company.

2. Measurement: Method of payment will be determined based on the lump

sum amount paid for insurance.

3. Payment: The payment for railroad protective insurance shall be based on

the lump sum amount paid for insurance. The CONTRACTOR shall provide

the receipt to the OWNER in order to receive reimbursement from the


OWNER plus 10% overhead costs for acquiring and maintaining the

insurance.

S. Contract Items 51 through 53 – Laser Profiling with Survey CCTV Inspection of

Sewer Pipe (Pipe Size of 12-inch to 47-inch):

1. Description: Under the Contract Item for Laser Profiling with Survey

CCTV Inspection of 12- to 47-inch diameter pipe, furnish all labor,

materials, equipment and services to provide Laser Profiling, together with

CCTV Inspection and all associated and appurtenant Work as specified or

directed by the OWNER. The Work includes all sewer flow bypassing and

bypass pumping, traffic control and appurtenant Work, all complete in

accordance with the requirements in Section 02651 – Television Inspection

and Section 02655 – Sewer Laser Profiling.

2. Measurement for Payment: The length of laser profiling with closed-circuit

television inspection of 12- to 47-inch diameter pipe to be measured under

Contract Items 50 through 52 will be the actual length of laser profiling with

closed-circuit television inspection provided in the Work and accepted,


manhole along the centerline of the pipeline. The payment for laser profiling

with survey CCTV inspection of rectangular or irregular shaped pipes shall

be based on the total linear feet of pipe inspected and the size of the pipe

with compensation provided by a survey laser /CCTV inspection unit price

with an equivalent cross sectional area. Laser profiling with closed-circuit

television inspection that is rejected or withdrawn will not be measured for

payment. Payment will not be made for the following:

a. Poor or unacceptable quality videos and laser profiling reports.

b. Re-televising and/or laser profiling any pipeline segment without

prior approval of the OWNER.


T. Contract Items 54 and 55 – 3D Laser Scanning with Survey CCTV Inspection of


1. Description: Under the Contract Item for 3D Laser Scanning with Survey


materials, equipment and services to provide 3D Laser Scanning, together

with CCTV Inspection and all associated and appurtenant Work as specified

or directed by the OWNER. The Work includes all sewer flow bypassing

and bypass pumping, traffic control and appurtenant Work, all complete in


accordance with the requirements in Section 02651 – Television Inspection

and Section 02655 – Sewer Laser Profiling.

2. Measurement for Payment: The length of laser scanning with closed-circuit

television inspection of 48- to 72-inch diameter pipe to be measured under

Contract Items 53 and 54 will be the actual length of laser scanning with

closed-circuit television inspection provided in the Work and accepted,


manhole along the centerline of the pipeline. The payment for laser

scanning with survey CCTV inspection of rectangular or irregular shaped

pipes shall be based on the total linear feet of pipe inspected and the size of

the pipe with compensation provided by a survey laser scanning /CCTV

inspection unit price with an equivalent cross sectional area. Laser scanning

with closed-circuit television inspection that is rejected or withdrawn will

not be measured for payment. Payment will not be made for the following:

a. Poor or unacceptable quality videos and laser scanning reports.

b. Re-televising and/or laser scanning any pipeline segment without



U. Contract Items 56 through 60 – Sonar Inspection of Sewer Pipe (Pipe Size of 12-

inch to 72-inch):

1. Description: Under the Contract Item for Sonar Inspection of 12- to 72-inch

diameter pipe, furnish all labor, materials, equipment and services to

provide Sonar Inspection, and all associated and appurtenant Work as

specified or directed by the OWNER. The Work includes traffic control and

appurtenant Work, all complete in accordance with the requirements in

Section 02656 – Sewer Sonar Inspection.

2. Measurement for Payment: The length of sonar inspection of 12- to 72-inch

diameter pipe to be measured under Contract Items 55 through 59 will be

the actual length of sonar inspection provided in the Work and accepted,


manhole along the centerline of the pipeline. The payment for sonar

inspection of rectangular or irregular shaped pipes shall be based on the

total linear feet of pipe inspected and the size of the pipe with compensation

provided by a sonar inspection unit price with an equivalent cross sectional

area. Sonar inspection that is rejected or withdrawn will not be measured for

payment. Payment will not be made for the following:


a. Poor or unacceptable quality videos and sonar inspection reports.

b. Re-sonar inspecting any pipeline segment without prior approval of

the OWNER.

V. Contract Items 61 through 65 – Sonar Inspection with Survey CCTV Inspection of


1. Description: Under the Contract Item for Sonar Inspection with Survey


materials, equipment and services to provide Sonar Inspection, together with

CCTV Inspection and all associated and appurtenant Work as specified or

directed by the OWNER. The Work includes traffic control and appurtenant

Work, all complete in accordance with the requirements in Section 02656 –

Sewer Sonar Inspection and Section 02651 – Television Inspection.

2. Measurement for Payment: The length of sonar inspection with closed-

circuit television inspection of 12- to 72-inch diameter pipe to be measured

under Contract Items 60 through 64 will be the actual length of sonar

inspection with closed-circuit television inspection provided in the Work

and accepted, measured from the centerline of the manhole to the centerline

of the manhole along the centerline of the pipeline. The payment for sonar

inspection with survey CCTV inspection of rectangular or irregular shaped

pipes shall be based on the total linear feet of pipe inspected and the size of

the pipe with compensation provided by a survey sonar/CCTV inspection

unit price with an equivalent cross sectional area. Sonar inspection with

closed-circuit television inspection that is rejected or withdrawn will not be

measured for payment. Payment will not be made for the following:

a. Poor or unacceptable quality videos and sonar inspection reports.

b. Re-televising and/or sonar inspecting any pipeline segment without


W. Contract Items 66 through 71 - Trim Protruding Service Connections/Taps (Pipe

Size of 6-inch to 72-inch):

1. Measurement: Actual number of protruding service connections which

require trimming prior to completing survey closed-circuit television

inspection. Measurement will only apply to protruding service connections

which are associated with the work completed as part of the survey closed-

circuit television inspection.

2. Payment: The payment for trimming protruding service connections shall

be based on the unit price per trimming of a protruding connection. The


unit price per trimming of a protruding connection for Contract Items 65

through 70 will be full compensation for providing for all labor, all sewer

flow bypassing and bypass pumping, traffic control, materials, equipment,

tools and incidentals as specified in Section 02760 – Cleaning of Sewers.

X. Contract Item 72 - Tree Removal Including Root Grubbing (Between 6 and 15

inches in Diameter):

1. Description: Under the Contract Item for Tree Removal Including Root

Grubbing (Between 6 and 15 inches in Diameter) ordered by the OWNER

on an each basis to includes all labor, supervision, materials, equipment,

insurance, taxes, traffic control, removal and disposal of material,

transportation and disposal fees, with all associated and appurtenant Work

as specified or directed by the OWNER. The Work shall be in accordance

with the requirements in Section 02110 – Clearing, Grubbing, and Site

Restoration.

2. Measurement: The quantity of tree removal will be the computed number

of trees, between 6 and 15 inches in diameter, removed, as shown, specified

or ordered by the OWNER. No payment will be made for trees not

specified for removal.

3. Payment: The unit price per tree removed for Contract Item 71 will be full


incidentals required to perform all tree removal and root grubbing, as

shown, specified, or ordered by the OWNER.

Y. Contract Item 73 - Tree Removal Including Root Grubbing (Greater than 15

inches in Diameter):

1. Description: Under the Contract Item for Tree Removal Including Root

Grubbing (Greater than 15 inches in Diameter) ordered by the OWNER on

an each basis to include all labor, supervision, materials, equipment,

insurance, taxes, traffic control, removal and disposal of material,

transportation and disposal fees, with all associated and appurtenant Work

as specified or directed by the OWNER. The Work shall be in accordance

with the requirements in Section 02110 – Clearing, Grubbing, and Site

Restoration.

2. Measurement: The quantity of tree removal will be the computed number

of trees, greater than 15 inches in diameter, removed as shown, specified or

ordered by the OWNER. No payment will be made for trees not specified

for removal.


3. Payment: The unit price per tree removed for Contract Item 72 will be full


incidentals required to perform all tree removal and root grubbing, as

shown, specified, or ordered by the OWNER.

Z. Contract Item 74 – Vacuum Excavation:

1. Description: Under the Contract Item for Vacuum Excavation ordered by

the OWNER, furnish all labor, supervision, materials and equipment

together with all associated and appurtenant Work as specified or directed

by the OWNER. The Work includes mobilization, demobilization, all

excavating, backfilling, compaction of backfill, grading, traffic control

(including flagman, cones, barricades, arrow boards etc.), site restoration,

cleanup and appurtenant. The Work shall be in accordance with the

requirements in Section 02220 – Excavation and Backfill.

2. Measurement: The quantity of vacuum excavation to be measured for

payment under Contract Item 74 will be the number of vacuum excavations

performed, in the work and accepted by the OWNER.

3. Payment: Payment vacuum excavation for Contract Item 74 will be made at

the Contract unit price per each vacuum excavation.

PART 2 PRODUCTS

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PART 3 EXECUTION

Not Used

END OF SECTION


SECTION 01300

SUBMITTALS

PART 1 GENERAL

1.1 SUBMITTAL PROCEDURES

A. Scheduling and Handling

1. Schedule submittals well in advance of the need for the material or

equipment. Allow time to make delivery of material or equipment after

submittal is approved.

2. Develop a submittal schedule that allows sufficient time for initial review,

correction, resubmission and final review of all submittals. The OWNER

will review and return submittals to the CONTRACTOR as expeditiously as

possible but the amount of time required for review will vary depending on

the complexity and quantity of data submitted. In no case will a submittal

schedule be acceptable which allows less than 30 days for initial review by

the OWNER. This time for review shall in no way be justification for

delays or additional compensation to the CONTRACTOR.

3. The OWNER’s review of submittals covers only general conformity to the

Specifications that affect the layout. Be responsible for quantity

determination. Be responsible for any errors, omissions or deviations from

the Contract requirements; review of submittals in no way relieves the

CONTRACTOR from his obligation to furnish required items according to

the Specifications.

4. Review submittals made by suppliers and Subcontractors before

transmitting them to the OWNER to assure proper coordination of the Work

and to determine that each submittal contains sufficient information about

materials and equipment for the OWNER to determine compliance with the

Contract Documents.

5. Submit five copies of documents unless otherwise specified in the following

paragraphs or in the Specifications.

6. Revise and resubmit submittals as required. Identify all changes made since

previous submittal.

7. Assume the risk for material or equipment that is fabricated or delivered

prior to approval. No material or equipment shall be incorporated into the


Work or included in periodic progress payments until approval has been

obtained in the specified manner.

B. Transmittal Form and Numbering

1. Transmit each submittal to the OWNER with a Transmittal Form. See

sample in Exhibit B. Sequentially number each transmittal from beginning

with the number 1. Resubmittals shall use the original number with an

alphabetic suffix (i.e., 2A for first resubmittal of Submittal 2 or 15C for

third resubmittal of Submittal 15). Each submittal shall only contain one

type of work, material, or equipment. Mixed submittals will not be

accepted.

2. Identify variations from requirements of Contract Documents and identify

product or system limitations.

3. Transmittal forms for CCTV videos shall be numbered sequentially

beginning with T01, T02, T03, etc.

C. CONTRACTOR's Stamp

1. Apply CONTRACTOR's stamp, certifying that the items have been

reviewed in detail and are correct and in accordance with Contract

Documents, except as noted by any requested variance.

2. All submittals shall contain CONTRACTOR’s stamp and signature.

3. As a minimum, include the following in the CONTRACTOR’s stamp:

a. CONTRACTOR's name

b. Job number

c. Submittal number

d. Certification statement that the CONTRACTOR has reviewed the

submittal and it is in compliance with the Contract Documents

e. Signature line for CONTRACTOR

1.2 PRODUCT DATA

A. Submit product data for review as required in Specification sections contained in

the Contract Documents.

B. Mark each copy to identify applicable products, models, and options to be used in

this Project. Supplement manufacturers' standard data to provide information

unique to this Project, where required by the Specifications.


C. For products specified only by reference standard, give manufacturers, trade name,

model or catalog designation and applicable reference standard.

1.3 SAMPLES

A. Submit the number of samples specified in Specifications, one of which will be

retained by the OWNER.

B. Reviewed samples which may be used in the Work are identified in Specifications.

C. Samples for Tests

1. Furnish such Samples of material as may be required for examination and

test. All Samples of materials for tests shall be taken according to standard

methods and as required by the Contract Documents.

1.4 MANUFACTURER'S CERTIFICATES

A. When specified in Specification sections, submit manufacturers' certificate of

compliance for review by OWNER.

B. Place CONTRACTOR's stamp, as described in paragraph 1.1, on front page of the

certification.

C. Submit supporting reference data, affidavits, and certifications as appropriate.

D. Certificates may be recent or previous test results on material or product, but must

be acceptable to OWNER.

PART 2 PRODUCTS

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PART 3 EXECUTION

Not Used

END OF SECTION


SECTION 01325

PROGRESS SCHEDULE

PART 1 GENERAL

1.1 SECTION INCLUDES

A. Form of Schedules

B. Work Days

C. Content of Schedules: Submit for approval a preliminary progress schedule for

each assignment.

D. Schedule Revisions

E. Submittal Requirements

1.2 FORM OF SCHEDULES

A. Prepare schedules in form of a horizontal bar chart.

1. Break the work into activities with durations of 1 to 10 days each, except for

nonconstruction activities, such as procurement of materials and delivery of

equipment, and other activities that may require longer durations. Group

activities related to a specific assignment for ease of understanding and

simplification. The OWNER will review the selection and number of

activities.

2. Utilize a horizontal time scale and identify first workday of each week.

3. Utilize scale and spacings to allow space for notations and future revisions.

B. Utilize a listing format that chronologically indicates the order of start of each item

of work.

1.3 WORK DAYS

A. Work Days and Holidays: The OWNER observes a five-day work week and the

following holidays: New Year's Day; Martin Luther King's Birthday; President’s

Day; Easter Monday; Memorial Day; Independence Day; Labor Day; Veterans

Day; Thanksgiving Day; the Friday after Thanksgiving; Christmas Eve and

Christmas Day. Work will not be permitted on these holidays unless otherwise

authorized by the OWNER.


1.4 CONTENT OF SCHEDULES

A. Completion Dates: Show the beginning and ending dates stated in assignment

letter. Schedules showing completion prior to the assignment completion date will

be accepted but in no event will they be considered basis for a claim for delay

against the OWNER for the period between the early completion date and the

completion date provided in the Contract Documents.

B. Show complete sequence of Work by activity.

C. Show dates for beginning and completion of each major element of the Work.

Elements shall include, but not be limited to, the following:

1. Shop drawing receipt from supplier/manufacturer submitted to OWNER,

review and return to supplier/manufacturer

2. Material and equipment order, manufacturer, delivery, installation, and

checkouts

3. Performance tests and supervisory services activity

4. Construction of various facilities

5. Demolition

6. Grading, seeding, and sodding

7. Final cleanup

8. Allowance for inclement weather

9. Coordination with concurrent Work on site

D. Show projected percentage of completion for each item as of first day of each

month.

1.5 SCHEDULE REVISIONS

A. At a minimum, revise construction schedule every 14 calendar days to reflect

changes in progress of Work for duration of Contract.

B. Indicate progress of each activity at date of submittal.

C. Show changes occurring since previous submittal of schedule.

1. Major change in scope.

2. Activities modified since previous submittal.


3. Revised projections of progress and completion.

4. Other identifiable changes.

D. Provide a written report as needed to define:

1. Problem areas, anticipated delays, and impact on schedule.

2. Corrective action recommended and its effect.

3. Effect of changes on schedules of other Contractors.

E. Provide a detailed two-week look ahead schedule to include at a minimum:

1. Specific activities and locations where work will take place each day.

2. Identify dates and times where work outside of normal hours may be

necessary.

3. Indicate when required notifications will be completed for any service

interruptions.

1.6 SUBMITTAL REQUIREMENTS

A. Schedule: Submit final progress schedule in accordance with paragraph 5.9 of the

General Conditions.

B. For preliminary and final submittal of project progress schedule and subsequent

revisions thereof, furnish three copies to OWNER.

PART 2 PRODUCTS

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PART 3 EXECUTION

Not Used

END OF SECTION


SECTION 01411

TESTING LABORATORY SERVICES FURNISHED BY CONTRACTOR

PART 1 GENERAL

1.1 DESCRIPTION

A. CONTRACTOR shall employ and pay for an independent testing laboratory to

perform the specified services. Laboratory selected shall be subject to approval by

the OWNER.

B. The testing laboratory is not authorized to approve or accept any portion of the

Work; rescind, alter or augment the requirements of the Contract Documents; or

perform any duties of the CONTRACTOR.

1.2 QUALIFICATIONS OF LABORATORY

A. Where applicable, meet "Recommended Requirements for Independent Laboratory

Qualification," latest edition, published by American Council of Independent

Laboratories and the basic requirements of ASTM E 329, "Standards of

Recommended Practice for Inspection and Testing Agencies for Concrete and

Steel as Used in Construction." Laboratory shall be authorized to operate in the

state in which Project is located.

B. If requested by OWNER, submit copy of report of inspection of facilities made by

Materials Reference Laboratory of National Bureau of Standards during most

recent tour of inspection; with memorandum of remedies of any deficiencies

reported by inspection.

C. Testing Equipment:

1. Calibrated at maximum 12-month intervals by devices of accuracy traceable

to either National Bureau of Standards or accepted values of natural

physical constants.

2. If requested by OWNER, submit copy of certificate of calibration, made by

accredited calibration agency.

1.3 LABORATORY DUTIES

A. Cooperate with the OWNER and CONTRACTOR, and provide qualified

personnel promptly on notice.


B. Perform specified inspections, sampling and testing of materials and methods of

construction; comply with applicable standards; ascertain compliance with

requirements of Contract Documents.

C. Promptly notify the OWNER and CONTRACTOR, of irregularities or deficiencies

of Work, which are observed during performance of services.

D. Promptly submit three copies of reports of inspections and tests to OWNER,

including:

1. Date issued.

2. Project title and number.

3. Testing laboratory name and address.

4. Name and signature of inspector.

5. Date of inspection or sampling.

6. Record of temperature and weather.

7. Date of test.

8. Identification of product and Specification Section.

9. Location in Project.

10. Type of inspection or test.

11. Results of tests and observations regarding compliance with Contract

Documents.

E. Perform additional tests and services as required to assure compliance with the

Contract Documents.

1.4 CONTRACTOR'S COORDINATION WITH LABORATORY

A. Cooperate with laboratory personnel; provide access to Work and to

manufacturer's operations.

B. Provide to laboratory, representative samples of materials to be tested, in required

quantities.

C. Furnish labor and facilities:


1. To provide access to Work to be tested.

2. To obtain and handle samples at the site.

3. To facilitate inspections and tests.

4. For laboratory's exclusive use for storage and curing of test samples.

5. Forms for preparing concrete test beams and cylinders.

D. Notify laboratory and the OWNER sufficiently in advance of operations to allow

for assignment of personnel and scheduling of tests.

E. Arrange with laboratory and pay for, additional samples and tests required for

CONTRACTOR'S convenience.

1.5 PRODUCT TEST REPORTS

A. Furnish copies of product test reports where required by the Specifications or

requested by OWNER.

PART 2 PRODUCTS

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PART 3 EXECUTION

Not Used

END OF SECTION


SECTION 01500

TEMPORARY FACILITIES AND CONTROLS

PART 1 GENERAL

1.1 CONTRACTOR’S RESPONSIBILITY

A. The facilities and controls specified in this section are considered minimum for the

Project. Provide additional facilities and controls for the proper execution of the

Work and to meet responsibilities for protection of persons and property.

1. Comply with applicable requirements specified in other sections of the

Specifications.

2. Maintain and operate temporary facilities and systems to assure continuous

service.

3. Modify and extend systems as Work progress requires.

4. Completely remove temporary materials and equipment when their use is no

longer required.

5. Restore existing facilities used for temporary services to specify or to

original condition.

1.2 SAFETY REQUIREMENTS

A. Conduct operations in strict accord with applicable Federal, State and local safety

codes and statutes and with good construction practice. Be responsible and

obligated to establish and maintain procedures for safety of all work, personnel

and equipment involved in the Project.

B. Observance of and compliance with the regulations shall be solely and without

qualification the responsibility of the CONTRACTOR without reliance or

superintendence of or direction by the OWNER’s representative. Immediately

advise the OWNER of investigation or inspection by Federal Safety and Health

inspectors of the CONTRACTOR or Subcontractor's work or place of work on the

job site under this Contract, and after such investigation or inspection, advise the

OWNER of the results. Submit one copy of accident reports to the OWNER

within 10 days of occurrence.

Protect areas occupied by workmen using the best available devices for detection

of lethal and combustible gases. Test such devices frequently to assure their


functional capability. Constantly observe infiltration of liquids into the Work area

for visual or odor evidences of contamination, immediately take appropriate steps

to seal off entry of contaminated liquids to the Work area.

Provide safety measures, including but not limited to safety personnel, first-aid

equipment, ventilating equipment, and safety equipment.

Maintain required coordination with the City's Police and Fire Departments during

the entire period covered by the Contract.

1.3 FIRST AID EQUIPMENT

A. Provide a first aid kit throughout the Work period. List telephone numbers for

physicians, hospitals, and ambulance services in each first aid kit.

B. Have at least one person thoroughly trained in first aid procedures present on the

site whenever Work is in progress.

1.4 SECURITY MEASURES

A. Protect all Work materials, equipment, and property from loss, theft, damage, and

vandalism. Protect property includes OWNER’s property used in connection with

the performance of the Contract.

B. If existing fencing or barriers are breached or removed for purposes of the work,

provide and maintain temporary security fencing equal to existing.

1.5 PROTECTION OF PUBLIC UTILITIES

Prevent damage to existing public utilities during the work. The location of

existing sewer, water or gas lines, conduits, underground cables or other structures

across or along the line of the proposed work may vary from the locations shown

on drawings provided by the OWNER and, where shown, the locations depth and

dimensions of such structures are approximately correct and may vary. Use extra

care when working in the areas where existing lines have been designated, and

will be solely liable for repair in the event of damage. Give owners of these

utilities at least 48 hours notice before commencing Work in the area, for locating

the utilities during construction, and for making adjustments or relocation of the

utilities when they conflict with the proposed Work.

Notify and coordinate with Miss Utility of Central Virginia (1-800-552-7001)

prior to beginning the work.


1.6 PROTECTION OF THE WORK AND PROPERTY

A. Preventive Actions.

1. Take precautions, provide programs, and take actions necessary to protect

the Work and public and private property from damage.

2. Take action to prevent damage, injury or loss, including, but not limited to,

the following:

a. Store apparatus, materials, supplies, and equipment in an orderly, safe

manner that will not unduly interfere with progress of the Work or the

Work of any other Contractor, any utility service company, or the

OWNER’s operations.

b. Provide suitable storage for materials, which are subject to damage by

exposure to weather, theft, breakage, or otherwise.

c. Place upon the Work or any part thereof only such loads as are

consistent with the safety of that portion of the Work.

3. Frequently clean up refuse, rubbish, scrap materials, and debris caused by

the work operations, keeping the Project site safe and orderly.

4. Provide safe barricades and guard rails around openings, for scaffolding, for

temporary stairs and ramps, around excavations, elevated walkways, and

other hazardous areas.

5. Obtain written consent from proper parties before entering or occupying

with workers, tools, materials or equipment, privately-owned land except on

easements provided for the work.

6. Assume full responsibility for the preservation of public and private

property on or adjacent to the site. If any direct or indirect damage is done

by or on account of any act, omission, neglect, or misconduct in execution

of the Work, restore to a condition equal to or better than that existing

before the damage was done.

B. Barricades and Warning Signals

1. Where Work is performed on or adjacent to any roadway, right-of-way, or

public place, furnish and erect barricades, fences, lights, warning signs, and

danger signals; and take other precautionary measures for the protection of

persons or property and protection of the Work. Use barricades painted to

be visible at night. From sunset to sunrise, furnish and maintain at least one


light at each barricade. Erect sufficient barricades to keep vehicles from

being driven on or into work site. Maintain barricades, signs, and lights until

the Project is accepted by the OWNER.

2. Provide a watchman at all places where the work causes obstructions to

normal traffic, excavation sites, or constitutes in any way a hazard to the

public.

3. Statutory Requirements: Install and maintain all barricades, signs, lights,

and other protective devices within highway rights- of- way in strict

conformity with City traffic control requirements.

C. Tree and Plant Protection

1. When working in a street or adjacent to private property where there are

trees, shrubs or vegetation, take every precaution to protect and prevent

unnecessary damage to the trees, shrubs, or vegetation. This shall include,

but is not limited to, boarding or wrapping of trunks or tying back of limbs.

In the course of the Work, should it become necessary to cut roots or limbs,

the cuts shall immediately be painted with a paint approved by the OWNER.

2. Leave lawn areas in as good condition as before the start of the work.

Restore areas where sod has been removed, by seeding or sodding.

D. Protection of Existing Structures

1. Underground Structures:

a. Underground structures are defined to include, but not be limited to,

sewer, water, gas, and other piping, and manholes, chambers,

electrical and signal conduits, tunnels, and other existing subsurface

installations located within or adjacent to the limits of the Work.

b. Drawings provided by the OWNER contain data relative to existing

public utility installations and structures above and below the ground

surface. Existing public utility installations and structures are

indicated on provided drawings only to the extent such information

was made available to, or found by, the OWNER in preparing the

drawings. These data are not guaranteed for completeness or

accuracy. Make necessary investigations to become fully informed as

to the character, condition, and extent of all public utility installations

and structures that may be encountered and that may affect the

construction operations.


c. Necessary changes in location of the Work may be made by the

OWNER to avoid unanticipated underground structures.

2. Surface Structures:

a. Surface structures are defined as existing buildings, structures and

other constructed installations above the ground surface. Included

with such structures are their foundations or any extension below the

surface. Surface structures include, but are not limited to buildings,

tanks, walls, bridges, roads, dams, channels, open drainage, piping,

poles, wires, posts, signs, markers, curbs, walks, guard cables,

fencing, and other facilities that are visible above the ground surface.

b. Assume and accept responsibility for all injuries or damage to

culverts, building foundations and walls, retaining walls, or other

structures of any kind met with during the prosecution of the work.

Assume and accept liability for damages to public or private property

resulting therefrom.

3. Protection of Underground and Surface Structures:

a. Support in place and protect from direct or indirect injury to

underground and surface structures located within or adjacent to the

limits of the Work. Install such supports carefully and as required by

the party owning or controlling such structure. Before installing

structure supports, provide documentation to satisfy the OWNER that

the methods and procedures to be used have been approved by the

owner of the structure.

b. Avoid moving or in any way changing the property of public utilities

or private service corporations without prior written consent of a

responsible official of that service or public utility. Representatives

of these utilities reserve the right to enter within the limits of this

project for the purpose of maintaining their properties, or of making

such changes or repairs to their property that may be considered

necessary by performance of this Contract.

c. Assume risks attending the presence or proximity of underground and

surface structures within or adjacent to the limits to the Work

including but not limited to damage and expense for direct or indirect

injury caused by his Work to any structure. Immediately repair

damage caused, to the satisfaction of the owner of the damaged

structure.


4. Work on Private Property

a. Make all necessary arrangements, at no additional cost to the

OWNER, for temporary use of private properties. Indemnify and

hold harmless the OWNER against claims or demands arising from

such use of properties outside of rights-of-way.

E. Protection of Installed Products.

1. Provide protection of installed products to prevent damage from subsequent

operations. Remove protection facilities when no longer needed, prior to

completion of Work.

2. Control traffic to prevent damage to equipment, materials, and surfaces.

1.7 TEMPORARY CONTROLS

A. During the Work:

1. Keep the site of the Work and adjacent premises free of materials, debris,

and rubbish. Remove this material from any portion of the site if such

material, debris, or rubbish constitutes a nuisance or is objectionable.

2. Remove from the site all surplus materials and temporary structures when

they are no longer needed.

3. Properly store volatile wastes in covered metal containers and remove from

the site daily.

4. Do not bury or burn on the site or dispose of into storm drains, sanitary

sewers, streams, or waterways, any waste material. Remove all wastes from

the site and dispose of in a manner complying with applicable ordinances

and laws.

1.8 ENVIRONMENTAL CONTROLS

A. Provide and maintain methods, equipment, and temporary work as necessary for

controls over environmental conditions at the work site and adjacent areas.

B. Comply with statutes, regulations, and ordinances that relate to the proposed Work

for the prevention of environmental pollution and preservation of natural

resources.

C. The OWNER recognizes that the site has considerable natural value and that

projects should have minimum impact to the surrounding environment. Adopt


work procedures that do not cause unnecessary indiscriminate destruction of

vegetation, air or stream pollution, nor the harassment or destruction of wildlife.

D. Recognize and adhere to the environmental requirements of the Project. Disturbed

areas shall be strictly limited to boundaries established by the OWNER.

Particularly avoid pollution of "on-site" streams, sewers, wells, or other water

sources.

E. Burning of rubbish, debris or waste materials is not permitted.

F. Provide lime for sewage spill as soon as possible. Pelletized lime to be used in

areas where wastewater is flowing. Hydrated lime to be used in areas of stagnant

wastewater spills.

1.9 POLLUTION CONTROL

A. Provide methods, means, and facilities required to prevent contamination of soil,

water or atmosphere by discharge of noxious substances from the work operations.

B. Provide equipment and personnel to perform emergency measures required to

contain any spillage, and to remove contaminated soils or liquids.

C. Take special measures to prevent harmful substances from entering public waters.

Prevent disposal of wastes, effluents, chemicals, or other such substances adjacent

to streams, or in sanitary or storm sewers.

D. Provide systems for control of atmospheric pollutants.

1. Prevent toxic concentrations of chemicals.

2. Prevent harmful dispersal of pollutants into the atmosphere.

E. Use equipment during the work that conforms to current Federal, State, and local

laws and regulations.

1.10 NOISE CONTROL

A. Provide vehicles, equipment, and construction activities that minimize noise to the

greatest degree practicable. Noise levels shall conform to the latest OSHA

standards and City Ordinances and in no case will noise levels be permitted which

interfere with the Work of the OWNER or create a nuisance in the surrounding

residential neighborhoods.

B. Conduct the work operations during daylight hours except as approved by

OWNER.


C. Select project equipment to operate with minimum noise and vibration. If in the

opinion of the OWNER, objectionable noise or vibration is produced by

equipment, rectify such conditions without additional cost to the OWNER. The

Sound Power Level (PWL) of any equipment shall not exceed 85 dbA (re: 10-12

watts) measured 5 feet from the piece of equipment, or the levels prescribed by

City Ordinances, whichever is lower. Explicit equipment noise requirements are

specified with equipment specifications.

1.11 DUST CONTROL

A. Control objectionable dust caused by operation of vehicles and equipment. Apply

water or use other methods, subject to approval of the OWNER, which will control

the amount of dust generated.

1.12 TEMPORARY DRAINAGE PROVISIONS

A. Provide for the drainage of stormwater and any water applied or discharged on the

site in performance of the Work. Provide adequate drainage facilities to prevent

damage to the Work, the site, and adjacent property.

B. Supplement existing drainage channels and conduits as necessary to carry all

increased runoff from the work operations. Construct dikes as necessary to divert

increased runoff from entering adjacent property (except in natural channels), to

protect the OWNER's facilities and the Work, and to direct water to drainage

channels or conduits. Provide ponding as necessary to prevent downstream

flooding.

1.13 WATER RUNOFF AND EROSION CONTROL

A. Where required, comply with the National Pollutant Discharge Elimination system

(NPDES) permit as stated in the Federal Register, Vol.57, No. 175.

B. In addition to the NPDES requirements, conform to the requirements in Section

02010 – Erosion and Sediment Control.

PART 2 PRODUCTS

Not Used

PART 3 EXECUTION

Not Used

END OF SECTION


SECTION 01564

WASTE MATERIAL DISPOSAL

PART 1 GENERAL

1.1 SUBMITTALS

A. Submittals shall conform to requirements of Section 01300 – Submittals.

B. Obtain and submit disposal permits for proposed disposal sites if required by

federal, state, and local ordinances.

PART 2 PRODUCTS

Not Used

PART 3 EXECUTION

3.1 EXCESS MATERIAL

A. Vegetation, rubble, broken concrete, debris, asphaltic concrete pavement, excess

soil, and other materials not designated for salvage, become the property of

CONTRACTOR. Remove from the job site and legally dispose excess material.

B. Remove waste materials from the site on a daily basis, such that the site is

maintained in a neat and orderly condition.

C. Remove and dispose of waste and debris cleaned from the sewer system in

accordance with Specification Section 02760 – Cleaning of Sewers.

END OF SECTION


SECTION 01611

STORAGE OF MATERIALS

PART 1 GENERAL

1.1 DESCRIPTION

A. Store and protect materials in accordance with manufacturer's recommendations

and requirements of Specifications.

B. Make all arrangements and provisions necessary for the storage of materials and

equipment. All materials and equipment to be incorporated into the Work shall be

placed so as not to injure any part of the Work or existing facilities and so that free

access can be available at all times to all parts of the Work and to all public utility

installations in the vicinity of the Work. Materials and equipment shall be kept

neatly and compactly stored in locations that will cause a minimum of

inconvenience to other CONTRACTORS, public travel, adjoining owners, tenants

and occupants. Arrange storage in a manner to provide easy access for inspection.

Be responsible for any theft of stored materials.

C. Areas available on the construction site for storage of material and equipment shall

be approved by the OWNER.

D. Lawns, grass plots or private property shall not be used for storage purposes

without written permission of the OWNER or other person in possession or control

of such premises.

E. Be fully responsible for loss or damage to stored materials and equipment.

F. Do not open manufacturer’s containers until time of installation unless

recommended by the manufacturer or otherwise specified.

G. Products exposed to the elements are not adversely affected.

PART 2 PRODUCTS

Not Used

PART 3 EXECUTION

Not Used

END OF SECTION


SECTION 02010

EROSION AND SEDIMENT CONTROL

PART 1 GENERAL

1.1 DESCRIPTION

A. Scope: Furnish, construct, maintain and replace all erosion and sediment control

features specified, shown, and required by the City, the local sediment control

inspectors, any other regulatory agency which has control or jurisdiction over

erosion and sedimentation control in the area in which the project is located and

Virginia Soil and Water Conservation Commission in the Virginia Erosion and

Sediment Control Handbook. Obtain all erosion and sediment control permits

required prior to any land disturbing operations.

B. Related Work Specified Elsewhere:

1. Section 02110 - Clearing, Grubbing and Site Restoration.

1.2 QUALITY ASSURANCE

A. Reference Codes and Standards: Reference the latest edition of the code or

standard at the time of project advertisement or assignment. Comply with

applicable provisions and recommendations of the following, except as otherwise

shown or specified:

1. Virginia Erosion and Sediment Control Handbook, Latest Edition.

2. Virginia Erosion and Sediment Control Regulations.

3. Virginia Erosion and Sediment Control Law.

4. Virginia Storm Water Management Regulations.

1.3 SUBMITTALS

A. Shop Drawings:

1. Submit Erosion and Sediment Control plan showing details of erosion and

sediment control devices and locations. Comply with requirements of

regulatory agency which has jurisdiction over erosion and sediment control

in the area in which the project is located. Submit technical data,

manufacturer’s literature and catalog information for the products specified.

2. Submit copies of approved Erosion and Sediment Control permits from

appropriate governing jurisdictions.


PART 2 PRODUCTS

2.1 GENERAL

A. Temporary Silt Fence: Furnish silt fencing as specified in the plans and the

"Virginia Erosion and Sediment Control Handbook" Standard and Specification

3.05.

B. Temporary Sediment Trap: Furnish temporary sediment trap outlets as specified

in the "Virginia Erosion and Sediment Control Handbook" Standard and

Specification 3.13.

C. Temporary Diversion Dike: Provide temporary diversion dikes as specified in the

"Virginia Erosion and Sediment Control Handbook" Standard and Specification

3.09.

D. Temporary Gravel Construction Entrance: Furnish temporary gravel construction

entrances in accordance with the "Virginia Erosion and Sediment Control

Handbook" Standard and Specification 3.02.

E. Temporary Tree Protection: Provide fencing as specified in the "Virginia Erosion

and Sediment Control Handbook" Standard and Specification 3.38, Section 8.

F. Temporary Storm Drain Inlet Protection: Furnish storm drain inlet protection in

accordance with the "Virginia Erosion and Sediment Control Handbook" Standard

and Specification 3.07.

G. Permanent Level Rip Rap Aprons: Furnish rip rap as specified in the "Virginia

Erosion and Sediment Control Handbook," Standard and Specification 3.18.

PART 3 INSTALLATION AND MAINTENANCE

3.1 TEMPORARY PRACTICES

A. Install silt fencing, diversion dikes, yard inlet protection, temporary sediment

traps, and temporary construction entrances as shown and specified in the

"Virginia Erosion and Sediment Control Handbook."

3.2 INSTALLATION AND MAINTENANCE SEQUENCING

A. Construct erosion and sediment control practices and measures prior to any land

disturbing activity. Maintain practices in accordance with the "Virginia Erosion

and Sediment Control Handbook" and local ordinances. Remove only upon

completion of all land disturbing activities.


B. Temporarily seed all disturbed areas including but not restricted to stock piles,

dams, banks of sediment basins and temporary road banks left unprotected for

more than 30 days at no cost to the OWNER. Protect all disturbed areas to control

erosion and prevent sedimentation of adjacent properties, storm sewers and/or

streams.

C. Use sediment control devices such as diversion berms, sediment raps, filter berms,

vegetation stabilization, etc., to prevent off-site sedimentation at all times.

D. Stockpile all borrow and/or spoil materials only within the limits of the permitted

site.

E. Protect all points of ingress and egress to prevent tracking of mud on the public

streets.

F. Divert storm drainage pipe discharges to temporary sediment traps. Construct rip

rap aprons during sediment trap removal.

G. Upon completion of all Work activities, and upon stabilizing all areas disturbed by

Work activities, remove remaining temporary sediment control devices. Install silt

fencing downhill of sediment traps prior to their removal. Restore sediment trap

areas to pre-existing grades and stabilized prior to removing silt fencing.

H. Upon removal of temporary erosion and sediment control features, inspect the

Work site for remaining disturbed areas. Stabilize any remaining disturbed areas.

END OF SECTION


SECTION 02110

CLEARING, GRUBBING AND SITE RESTORATION

PART 1 GENERAL

1.1 DESCRIPTION

A. Scope: Furnish all labor, materials, equipment and incidentals required to perform

all clearing, grubbing, site restoration and fencing within the limits of work as

specified and required by the OWNER.

B. Restore with topsoil, fertilizer, seed and mulch all unpaved areas disturbed by the

CONTRACTOR’S operations.

C. Related Work Specified in Other Sections Includes:

1. Section 01500 - Temporary Facilities and Controls

2. Section 02010 - Erosion and Sediment Control


A. Codes and Standards: State and local laws and code requirements govern the

hauling and disposal of trees, shrubs, stumps, roots, rubbish, debris and other

matter and the final restoration of the site. Obtain all permits required.

PART 2 PRODUCTS

2.1 MATERIALS

A. Fertilizer:

1. Provide fertilizer of standard commercial quality containing nitrogen,

phosphoric acid and potash in a 1:2:1 ratio and packed in the properly

labeled manufacturer's standards bags, which weigh less than 100 pounds.

Provide bag labeling consisting of manufacturer's name, net weight of

contents, type of material, and a guaranteed analysis on each container.

Store fertilizer in a weather proof storage area. Material that has become

caked or otherwise damaged will be rejected.


B. Seed:

1. Provide all seed meeting the requirements of the Virginia Erosion and

Sediment Control Handbook Standard and Specification 3.32, and be

delivered in original unopened packages. All seed to be certified by the

Virginia Crop Improvement Association or the certifying agency in other

states. Guaranteed each package to be 95 percent pure and having an

analysis showing the following: Kind, Variety, Lot No., Lab Test No., Lab

Test Date, Pounds, Purity Percent, Germination Percent and Weed Seed

Percent. Packages which do not contain analysis certificates will not be

accepted.

2. Germination rate for seed to be a minimum of 85 percent within one year of

test.

3. Provide Permanent Seeding Mix in accordance with Table 3.32-D of the

Virginia Erosion and Sediment Control Handbook, for General Slope

Conditions.

4. Permanent seeding after October 16 will only be allowed if weather

conditions permit and with approval of the City. Do not seed when the

ground is frozen, or when soil and weather conditions would prevent proper

soil preparation.

5. Use temporary vegetation to stabilize temporary diversion dikes and

disturbed areas that will not be brought to final grade within 30 days, in

accordance with Virginia Erosion and Sediment Control Handbook

Standard and Specification 3.31.

C. Mulch:

1. Provide hay for mulching consisting of mowings of acceptable herbaceous

growth, which is free from noxious weeds; normally materials that are low

grade and unfit for farm use are acceptable. Calculate the weight on the

basis of the material not having more than 15 percent moisture content.

2. Provide straw for mulching consisting of stalks of oats or wheat crops that

are free from noxious weeds. Normally materials that is unfit for farm use is

acceptable for mulch. Calculate the weight on the basis of the material not

having more than 15 percent moisture content.

D. Lime:

1. Provide lime of agriculture grade palletized or pulverized limestone. Apply

lime as directed by the OWNER, generally apply palletized lime where


potential run-off is possible to adjacent water. Use pulverized lime on level

areas.

2. Provide lime from a source registered with and approved by the Virginia

Department of Agriculture and Commerce in accordance with the Virginia

Agricultural Lime Law, as well as conform to VDOT Road and Bridge

Specifications.

E. Fencing:

1. Conform fence material to Section 507 of the VDOT Road and Bridge

Specifications.

2. Match and replace existing fencing distributed by Work at no additional cost

to OWNER.

PART 3 EXECUTION

3.1 CLEARING AND GRUBBING

A. Limit clearing to areas required by the Work. Correct damage outside these limits

resulting from the CONTRACTOR'S operations, at the CONTRACTOR's

expense.

B. Except as noted below, remove from the site and satisfactorily dispose of all trees,

shrubs, stumps, roots, brush, masonry, rubbish, scrap, debris, pavement, curbs,

fences and miscellaneous other structures not covered under other Sections as

specified or otherwise required to permit construction of the Work.

C. Dispose of trees, stumps and other cleared and grubbed material off the site of the

Work at no additional cost to the OWNER. No cleared or grubbed material may

be used in backfills or structural embankments.

D. No on-site burning will be allowed unless approved by authorities having

jurisdiction.

E. Trim trees and shrubs when doing so will avoid removal or damage. Trimmed or

damaged trees shall be treated and repaired by persons with experience in this

specialty who are approved by OWNER. Replace trees and shrubs intended to

remain that are damaged beyond repair or removed.

F. CONTRACTOR must comply with all City Ordinances on removal of trees and

must coordinate with the City’s Urban Forestry Department prior to tree removal.


3.2 TOPSOIL REMOVAL AND INSTALLATION

A. Topsoil is defined as friable clay loam surface soil found in a depth of not less than

4 inches. Provide topsoil substantially free of subsoil, clay lumps, stones, and

other objects over 2 inches in diameter, and without weeds, roots, and other

objectionable material.

B. Strip topsoil which is satisfactory to whatever depths are encountered, and in such

manner as to prevent intermingling with the underlying subsoil or other

objectionable material. Remove heavy growths of grass from areas before

stripping.

1. Where trees are shown or directed to be left standing, stop topsoil stripping

a sufficient distance from such trees to prevent damage to the main root

system in accordance with the Virginia Erosion and Sediment Control

Handbook, Specification 3.38.

C. Stockpile topsoil in storage piles in areas approved by the OWNER. Construct

storage piles to freely drain surface water. Cover storage piles if required to

prevent windblown dust. Remove topsoil in excess of quantity required from the

site at the CONTRACTOR’S expense. Install silt fence at the base of the

stockpile.

D. Temporarily seed topsoil stockpiles remaining undisturbed for 30 days or more in

accordance with the Virginia Erosion and Sediment Control Handbook,

Specification 3.31.

E. Preparation for installation of topsoil:

1. Loosen subgrade of areas to receive topsoil to a minimum depth of 4 inches

by discing, harrowing or other approved method to permit bonding of the

topsoil to the subgrade. Operate the equipment used to scarify the subsoil so

the ridges and depressions are parallel to the contours.

2. Remove stones over 1-1/2 inches in any dimension and sticks, roots, rubbish

and other extraneous matter.

F. Installation of topsoil:

1. Install topsoil in accordance with Virginia Erosion and Sediment Control

Handbook, Standard and Specification 3.30, and as specified herein.

2. Place and spread topsoil, over all unpaved areas disturbed during

construction and as directed by the OWNER, to a minimum depth of 4

inches after natural settlement and light rolling, in a manner that the


completed work conforms to the lines and grades of the pre-construction

ground surface.

3. Do not compact topsoil, except for light rolling.

4. After the topsoil is spread, remove all large, stiff clods, rocks, roots or other

foreign matter over 2 inches.

5. Apply soil amendments, as required by machine over all areas receiving

topsoil, to bring the soil to a neutral pH. Work lightly into the top 3 inches

of topsoil.

6. Manipulate topsoil to attain a properly drained surface.

7. Grade topsoil areas to smooth, even surface with loose, uniform, fine

texture.

8. Roll and rake and remove ridges and fill all depressions, ruts, low spots or

unsuitable areas which result after settlement so that the area is suitable for

subsequent work.

3.3 LIMING, FERTILIZING, SEEDING, MULCHING, HYDROSEEDING

A. Liming:

1. Uniformly spread lime at the rate of 2 tons per acre on areas to be seeded

prior to the areas being loosened or roughened.

B. Fertilizing:

1. Evenly spread fertilizer at the rate of 1,500 pounds per acre of area and

lightly worked in by an approved method.

C. Seeding:

1. Seed in accordance with the Virginia Erosion and Sediment Control

Handbook Standards 3.31 and 3.32, or as specified herein. Seed all areas

where topsoil has been placed, all areas where topsoil already exists but

requires reworking, and other regraded or disturbed areas within the Work

limit. Maintain seeded areas until a satisfactory growth is obtained. Restore

as specified above all grassed areas on which the grass is destroyed by

operation of the CONTRACTOR.

2. Evenly spread seed at the rate of at least 7 pounds of pure live seed per

1,000 square feet of area and lightly rake into the ground to a depth not to


exceed 1/4-inch by any approved method. After seed placement, roll the

area.

3. Be responsible for all maintenance, watering, weeding and repair of failures,

to the seeded areas. Protect the seeded areas by whatever method necessary

until acceptance of the seeded areas by the OWNER. Produce a satisfactory

healthy stand of grass consisting of all the types of grass seeds sown.

D. Mulching:

1. Apply straw or hay mulch at the rate of 2 tons per acre in such a manner so

that not more than 10 percent of the soil surface is left exposed. No seeded

areas may be left unmulched for a period of more than 48 hours. After the

end of 48 hours, reseed the areas which were not mulched.

2. Anchor straw or hay mulch in accordance with the Virginia Erosion and

Sediment Control Handbook Standard Specification 3.35. Do not anchor

mulch with asphalt.

E. Hydroseeding:

1. CONTRACTOR may at his option spread fertilizer, seed and mulch with

hydroseeding equipment.

2. Submit to the OWNER for approval seed, fertilizer and mulch substitutes

required for hydroseeding.

3. Apply liquid fertilizer on a poundage basis, mixed with the same volume of

water that would be used with dry fertilizer.

4. Apply wood cellulose fiber mulch at a rate of approximately 1,500 pounds

net dry weight per acre and in such a manner to obtain a uniform

distribution of mulch.

3.4 MAINTENANCE

A. Maintain topsoiled areas by filling in erosion rills and correcting drainage as

required.

B. Maintain the topsoil in a loose, friable condition until the area is reseeded in

accordance with the requirements herein.

C. Maintain seeded areas until final acceptance but in no case less than 60 days after

planting.


3.5 CLEAN UP AND PROTECTION

A. Conform to requirements specified in Section 01500 – Temporary Facilities and

Controls.

3.6 TEMPORARY EROSION CONTROL

A. Conform to requirements specified in Section 02010 – Erosion and Sediment

Control.

3.7 FENCING

A. Conform to Section 507 of the VDOT Road and Bridge Specifications and VDOT

Standard FE-CL.

3.8 INSPECTION AND ACCEPTANCE

A. When site restoration work is completed, including maintenance, the OWNER will

make an inspection to determine acceptability.

B. Where inspected work does not comply with the requirements, replace rejected

work and continue specified maintenance until reinspected by the OWNER found

to be acceptable. Remove rejected plants and materials promptly from the Project

site.

END OF SECTION


SECTION 02150

BYPASS PUMPING

PART 1 GENERAL

1.1 DESCRIPTION

A. Scope: Furnish, construct, maintain and operate bulkheads, plugs, hoses, piping,

and pumps to bypass sewage flow in gravity sewers or force mains while

maintenance or project work operations are in progress. Divert flow by pumping

around the project location to a downstream manhole. Prevent backup or overflow

onto streets, yards and unpaved areas or into buildings, adjacent ditches, storm

sewers, and waterways, without diverting sewage outside of the sewer system.

Provide full redundancy for the bypass system.

B. Related Work Specified in Other Sections Includes:

1. Section 02651 - Television Inspection

2. Section 02760 - Cleaning of Sewers


A. Meet the requirements of all codes and regulatory agencies having jurisdiction. Be

responsible for damage due to sewer backup or overflow onto streets, yards and

unpaved areas or into buildings, adjacent ditches, storm sewers, and waterways.

Be responsible for violations from sewage spills.

1.3 SUBMITTALS

A. Conform to the requirements of Section 01300 – Submittals.

B. Coordinate with the OWNER to determine the type and number of pumps to be

used. For bypass pumping systems of gravity sewers and force mains, submit,

prior to installation, a detailed plan and description outlining all details and

provisions of the temporary bypass pumping system. Provide plan, specific and

complete, including such items as schedules, locations, elevations, capacities of

equipment, materials and all other incidental items necessary and/or required to

insure proper operation of the bypass pumping system, including protection of the

access and bypass pumping locations from damage due to the discharge flows,

ability to pump dry weather and wet weather flows, and compliance with the

requirements and permit conditions specified in these Contract Documents. Do

not begin bypass pumping until all provisions and requirements have been

reviewed and approved.


C. Include, at a minimum, the following in the bypass pumping:

1. Staging areas for pumps;

2. Flow stoppage system, including pipe and channel plugging method and

types of plugs;

3. Number, size, material, location and method of installation of pump suction

piping;

4. Number, size, materials, method of installation and location of installation

of discharge piping;

5. Bypass pump sizes, capacity, number of each size to be on site and power

requirements;

6. Calculations of static lift, friction losses, and flow velocity (pump curves

showing pump operating range shall be submitted);

7. Size and location of standby power generator, if required;

8. Downstream discharge plan;

9. Restraining lengths for piping;

10. Any temporary pipe supports and anchoring required;

11. Calculations for selection of bypass pumping pipe size;

12. Schedule for installation of and maintenance of bypass pumping lines;

13. Plan indicating selection location of bypass pumping line locations;

14. Road crossing details;

15. Protection against main breaks;

16. Method of noise control for each pump and/or generator;

17. Standby power generator size and location.


PART 2 PRODUCTS

2.1 MATERIALS

A. Design piping, joints, and accessories to withstand at least twice the maximum

system pressure or 50 psi, whichever is greater.

B. Provide pumps of the automatic, self-priming type or submersible electric, in good

working order, with a working pressure gauge, vacuum gauge and a flowmeter on

the discharge. Provide pumps meeting the requirements of the City of Richmond

Noise and Sound Level Regulations. Supply all power for bypass pumping. All

pumps used must be constructed to allow dry running for extended periods of time

to accommodate the cyclical nature of sewer flows.

C. Provide stand-by pumps of adequate capacity, installed within the bypass system

using isolating valving.

PART 3 EXECUTION

3.1 FIELD QUALITY CONTROL AND MAINTENANCE

A. Unless otherwise directed by the OWNER, any time the bypass pumping system is

in place, an experienced operator shall be on site to monitor the operation, adjust

pump speed, valves, etc., make minor repairs to the system and report problems.

B. During bypass pumping, do not allow sewage to be leaked, dumped, or spilled in

or onto any area outside of the existing sewer system. Provide 100% watertight

bypass pumping system.

C. In the event of accidental spill or overflow, immediately stop the discharge and

take action to clean up, disinfect the spill and promptly notify the OWNER.

D. Prevent back-up of sewage in sewer laterals within the areas of pipe being bypass

pumped.

E. In the event of rain, coordinate the operation of bypassing with the OWNER.

F. High flow conditions may require the CONTRACTOR to temporarily suspend

work. Days on which work has been suspended shall not be considered working

days and no additional compensation will be provided by the OWNER.

G. Keep spare parts for each type of pump and piping on site as required.


3.2 INSTALLATION AND REMOVAL

A. Locate the bypass pipelines to minimize any disturbance to existing utilities and

obtain approval of the pipeline locations from the OWNER.

B. During all bypass pumping operation, protect existing structures and equipment

from damage inflicted by any equipment. Be responsible for all physical damage

to the existing structures and equipment caused by human or mechanical failure.

C. When working inside existing structures, exercise caution and comply with

VOSHA requirements when working in the presence of gases, combustible or

oxygen-deficient atmospheres, and confined spaces.

D. The pipeline must be located off streets and sidewalks and on shoulders of the

roads. When the bypass pipeline crosses streets and driveways, place the bypass

pipelines in trenches and cover with temporary pavement. Upon completion of the

bypass pumping operations, and after the receipt of written permission from the

OWNER, remove all the piping, restore all property to pre-construction condition

and restore all pavement and pavement markings.

E. When bypass pumping operations are complete, drain or pump piping into the

sewer prior to disassembly.

END OF SECTION


SECTION 02220

EXCAVATION AND BACKFILL

PART 1 GENERAL

1.1 DESCRIPTION

A. Scope:

1. CONTRACTOR shall provide all labor, materials, equipment and

incidentals required to perform all excavating, sewer abandonment,

backfilling, filling and grading, and disposing of earth materials as specified

and required for construction and repair of manholes, pipelines, roads, and

other facilities required to complete the Work in every respect.

2. Work shall conform to the City of Richmond requirements and where

construction is within the State right-of-way, the applicable requirements of

the Virginia Department of Transportation.


1. Section 01500 - Temporary Facilities and Controls

2. Section 01564 - Waste Material Disposal

3. Section 02010 - Erosion and Sediment Control

4. Section 02110 - Clearing, Grubbing and Site Restoration


A. Tests:

1. Engage the services of a certified, independent testing laboratory to make

tests and determine acceptability of the fill or material as listed below and

required by the OWNER. All test results submitted to the OWNER shall be

certified by the testing laboratory for accuracy and compliance to these

specifications. Laboratory shall be employed by the OWNER.

2. Required Tests:

a. Select Fill, Subbase Material, General Backfill Samples: Gradation,

ASTM D 422.

b. Compaction, ASTM D 1556 and ASTM D 698, and ASTM D 2922.

B. Permits and Regulations:


1. CONTRACTOR shall obtain all necessary City of Richmond and

Commonwealth of Virginia permits for work in roads, rights-of-ways,

railroads, etc. Also obtain permits as required by local, state and federal

agencies for discharging water from excavations.

2. Perform excavation work in compliance with applicable requirements of

governing authorities having jurisdiction.

3. All VOSHA safety measures, including but not limited to trenching,

confined space, traffic control and other applicable safety measures shall be

strictly adhered to and enforced by the CONTRACTOR. CONTRACTOR

shall develop a written plan that demonstrates compliance with VOSHA

requirements. A copy of the plan shall be maintained at the construction site

for the duration of the project.

C. Reference Standards: Comply with applicable provisions and recommendations of

the following except as otherwise specified.

1. ASTM A 36, Specification for Structural Steel.

2. ASTM A 328, Specification for Steel Sheet Piling.

3. ASTM D 422, Method for Particle-Size Analysis of Soils.

4. ASTM D 698, Test Method for Laboratory Compaction Characteristics of

Soil Using Standard Effort (12,419 ft-lb/ft3)

5. ASTM D 1556, Test Method for Density and Unit Weight of Soil in Place

by the Sand-Cone Method.

6. ASTM D 2922, Test Methods for Density of Soil and Soil-Aggregate in

Place by Nuclear Methods (Shallow Depth).

7. AISC Specifications for the Design, Fabrication, and Erection of Structural

Steel for Buildings.

8. VOSHA Standard.

1.3 SUBMITTALS

A. CONTRACTOR shall prepare drawings for the following items, if used in

completion of the Work:

1. Sheeting and bracing, or other protective system(s).

2. Dewatering system.


3. Cofferdams.

4. Underpinning.

B. Drawings shall be prepared by a licensed professional engineer recognized as

expert in the specialty involved. Drawings shall be submitted to the OWNER for

record purposes only. Calculations shall not be submitted. Drawings submittals

will not be checked and will not imply approval by the OWNER of the Work

involved. CONTRACTOR shall be solely responsible for designing, installing,

operating and maintaining whatever system is necessary to satisfactorily

accomplish all necessary sheeting, bracing, protection, underpinning and

dewatering required to complete the Work.

C. Test Reports:

1. The testing laboratory shall submit copies of all test reports directly to the

OWNER, with copy to CONTRACTOR:

1.4 JOB CONDITIONS

A. Subsurface Information: If subsurface data is available, it is not intended as a

representation or warranty of continuity of conditions between soil borings nor of

groundwater levels at dates and times other than date and time when measured.

The OWNER will not be responsible for interpretations or conclusions drawn by

CONTRACTOR. Data are solely made available for the convenience of

CONTRACTOR. Additional test borings and other exploratory operations may be

made by CONTRACTOR at no cost to the OWNER.

B. Existing Structures: The Drawings, if any, may show certain surface and

underground structures adjacent to the Work. This information has been obtained

from existing records. It is not guaranteed to be correct or complete and is shown

for the convenience of CONTRACTOR. CONTRACTOR shall explore ahead of

the required excavation to determine the exact location of all structures. They

shall be supported and protected from damage by CONTRACTOR. If they are

broken or damaged, they shall be restored immediately by CONTRACTOR at his

expense.

C. Existing Utilities:

1. It shall be the responsibility of the CONTRACTOR to conduct the Work in

such a manner as to avoid damage to, or interference with, any utility

services. The CONTRACTOR is responsible for providing temporary

supports for any utility that may be affected by its work. If any damage,

interference, or interruption of service occurs as a result of his Work, it shall

be the CONTRACTOR’S responsibility to promptly notify the OWNER and

utility owner of the occurrence and to repair or caused to be repaired the


damage immediately, at his own expense, and to the satisfaction of the

OWNER and the owner of the utility.

2. It shall be the CONTRACTOR’S responsibility to uncover and expose the

location of all service connections to avoid damage or interruption of

service. If damage occurs, the CONTRACTOR shall make the necessary

repairs in accordance with the above requirements.

3. It is the responsibility of the CONTRACTOR to determine in advance of

beginning the construction effort the exact location of all utilities, and the

effect they will have on the work by contacting “Miss Utility” for assistance

at 1-800-552-7001, 48 hours prior to starting work. All costs related to

identification of utility location shall be the responsibility of the

CONTRACTOR.

4. Do not interrupt existing utilities serving facilities occupied and used by the

OWNER or others, except when permitted in writing by the OWNER and

then only after acceptable temporary utility services have been provided.

5. Demolish and completely remove from site existing underground utilities

indicated to be removed. Coordinate with utility companies for shut-off of

services if lines are active.

6. The City may request additional subsurface utility engineering as a tool

during the design phase of projects under the contract items for Additional

Subsurface Utility Engineering. The Contractor shall furnish all labor,

materials, equipment, traffic control and appurtenant work and services to

provide Subsurface Utility Engineering in compliance with Quality Level

“A” of CI/ASCE 38-02, ASCE CI/ASCE 38-02, Standard Guideline for the

Collection and Depiction of Existing Subsurface utility Data as requested by

the OWNER. The Contractor shall also complete Subsurface Utility

Engineering in compliance with Quality Level “B” of CI/ASCE 38-02,

ASCE CI/ASCE 38-02, Standard Guideline for the Collection and Depiction

of Existing Subsurface utility Data as a referenced requirement in Quality

Level “A” of CI/ASCE 38-02, ASCE CI/ASCE 38-02. This bid items does

not relieve the CONTRACTOR of responsibilities as described in Section

02220, Excavation and Backfill during the performance of assigned work.

a. Test hole openings shall be a minimum 8” x 8” and not larger than

12” x 12”. Excavation shall proceed to expose the utility by vacuum

excavation in a careful manner with the utmost care for the safety of

personnel, the public and surrounding property. A field test hole

form will be completed for each excavation and will contain at a

minimum parameters required by the Standard 38-02, which include:

depth to the utility, outside diameter, height of conduits or


encasement, utility material, pavement type/thickness and general soil

type. For duct systems such as electrical and telecommunication, top,

bottom and width of the utility will be documented.

b. A permanent marker will be placed over a reference point on the

utility flush with grade. This reference point is the centerline of pipes

or the edge of concrete structures. A minimum of three (3) ties will

be taken to the permanent marker. The depth to the reference point

on the utility will also be measured plumb to the permanent marker.

c. The excavation will be backfilled utilizing excavated materials. A

high epoxy content bituminous cold patch will be used for pavement

restoration and shall be guaranteed for a minimum of one (1) year.

d. The final submittal including AutoCAD files will be contained a pdf

binder file with Test Hole Inventory (index) and all Test Hole Forms.

This file will be emailed to the client ready for printing on 81/2” x

11” paper. Four hard copies shall also be sent to the client.

D. Protection of Persons and Property:

1. Barricade open excavations occurring as part of the Work and post with

warning lights and other protective measures as recommended by authorities

having jurisdiction.

2. Protect structures, utilities, sidewalks, pavements, and other facilities from

damage caused by settlement, lateral movement, undermining, washout and

other hazards created by Work or other operations in the area.

3. Comply with requirements of Section 01500 – Temporary Facilities and

Controls.

E. Dust Control: Conduct all operations and maintain areas of activity, including

sweeping and sprinkling of roadways, to minimize creation and dispersion of dust.

F. Protection of Trees: Protect trees, shrubs, lawns, existing structures, and other

permanent objects outside of grading limits, and in accordance with requirements

of Section 02110 - Clearing, Grubbing and Site Restoration and Section 01500 –

Temporary Facilities and Controls.


PART 2 PRODUCTS

2.1 SOIL MATERIALS

A. OWNER may approve other acceptable fill materials for select fill, common fill,

subbase material, pipe bedding, and general backfill.

B. Select Fill:

1. Materials for Select Fill: Use gravel, crushed stone, limestone screenings or

other granular or similar material as approved which can be readily and

thoroughly compacted to 95 percent of the maximum dry density obtainable

by ASTM D 698. Place select fill where specified below and around

structures, pipelines, roads, walks, and other work.

2. Grade select fill between the following limits:

U.S. Standard

Sieve

Percent Passing

by Weight

2 inch 100

1-1/2 inch 90-100

1 inch 75-95

1/2 inch 45-70

#4 25-50

#10 15-40

#200 5-15

3. Advise the OWNER in writing of source and, if required, submit a sample

and gradation report of the material for approval.

C. Common Fill:

1. Materials for Common Fill: Material from on-site excavation in unpaved

areas may be used as common fill provided that it can be readily compacted

to 95 percent of the maximum dry density obtainable by ASTM D 698, and

does not contain unsuitable material. Select fill may be used as common fill

at no change in the Contract Price. VDOT No. 21A stone shall be used for

work in paved areas.

2. Granular Materials On-Site: Granular on-site material, which is fairly well

graded between the following limits may be used as granular common fill:

U.S. Standard

Sieve

Percent Passing

by Weight


3 inch 100

#10 50-100

#60 20-90

#200 0-20

D. Subbase Material: VDOT No. 21A stone.

E. Pipe Bedding

1. Pipe bedding for concrete pipe shall be open graded coarse aggregate

VDOT Size No. 57 or No. 21A. Pipe bedding for ductile iron pipe should

be VDOT Size No. 21A. The stone shall conform to Section 203 of the

VDOT specifications.

2. For PVC pipe, pipe bedding and initial pipe backfill to 1 foot over the top of

pipe shall be select fill.

F. General Backfill and Fill Materials:

1. Provide approved soil materials for backfill and fill, free of clay, rock or

gravel larger than 2 inches in any dimension, debris, waste, frozen materials,

vegetable and other organic matter and other deleterious materials.

Previously excavated materials meeting these requirements may be used for

general backfill.

2. Approved materials must be at moisture condition suitable for compaction

at required density.

PART 3 EXECUTION

3.1 INSPECTION

A. Examine the areas and conditions under which excavating, filling, and grading are

to be performed. Also, remedy any conditions detrimental to the proper and

timely completion of the Work. Do not proceed with the Work until unsatisfactory

conditions have been corrected in manner acceptable to the OWNER.

3.2 PREPARATION

A. Immediately notify the agency or company owning any existing utility line which

is damaged, broken, or disturbed. Obtain approval from the OWNER and agency

for any repairs or relocations, either temporary or permanent.


B. Maintain permanent benchmarks, monumentation, and other reference points.

Unless otherwise directed in writing, replace those which are damaged or

destroyed.

3.3 EXCAVATION

A. All excavation will be conducted in accordance with “Virginia Occupational

Safety and Health Standard for the Construction Industry.”

B. Perform all excavation required to complete the Work specified and required.

Excavations shall include earth, sand, clay, gravel, rock, hardpan, pavements,

rubbish and all other materials within the excavation limits. If excavations are

made between the required grades, without the written order of the OWNER, they

shall be backfilled with compacted Subbase Material, at the expense of the

CONTRACTOR.

C. Excavations for structures and pipelines shall be open excavations. Provide all

excavation protection systems required by ordinances, codes, law and regulations

to prevent injury to workmen and to prevent damage to new and existing structures

or pipelines. See Section 15051 – Buried Piping Installation for additional

requirements.

D. Where a structure or pipeline is to be placed below the ground water table, well

points, cofferdams or other acceptable methods shall be used to permit

construction of the structure or pipeline under dry conditions. Dry conditions shall

prevail until the pipelines are properly jointed, tested and backfilled. In addition,

protect excavation from flooding until all structures are in place and backfilling

has begun. Water level shall be maintained below top of backfill at all times. See

Section 15051 – Buried Piping Installation for additional requirements.

E. Pumping of water from excavations shall be done in such a manner to prevent the

carrying away of unsolidified concrete materials, and to prevent damage to the

existing subgrade. Dispose of water in accordance with Paragraph 3.6.

F. Excavations shall be extended sufficiently on each side of structures, footings, etc.,

to permit setting of forms, installation of shoring or bracing or the safe sloping of

banks.

G. Subgrades for roadways, structures and trench bottoms shall be firm, dense, and

thoroughly compacted and consolidated; shall be free from mud, muck, and other

soft or unsuitable materials; and shall remain firm and intact under all construction

operations. Subgrades which are otherwise solid, but which become soft or mucky

on top due to construction operations, shall be removed and replaced with No. 57

stone.


H. Pipe Trench Preparation: See Section 15051 – Buried Piping Installation, for

additional requirements.

1. No more than 200 feet of trench may be opened in advance of pipe laying.

2. Trench width shall be minimized to greatest extent practical but shall

conform to the following:

a. Sufficient to provide room for installing, jointing and inspecting

piping.

b. Enlargements at pipe joints may be made if required and approved by

the OWNER.

c. Sufficient for shoring and bracing, or shielding and dewatering.

d. Sufficient to allow thorough compaction of backfill adjacent to

bottom half of pipe.

e. Do not use excavating equipment which requires the trench to be

excavated to excessive width.

3. Depth of trench shall be as SPECIFIED. If required and approved by the

OWNER, depths may be revised.

I. Material Storage: Stockpile satisfactory excavated materials in approved areas,

until required for backfill or fill. Place, grade and shape stockpiles for proper

drainage. Locate and retain soil materials away from edge of excavations.

Dispose of excess soil material and waste materials as specified.

J. Where the OWNER considers the existing material beneath the bedding material

unsuitable, CONTRACTOR shall remove same and replace it with No. 57 stone.

K. Undercut Excavation For Trenching:

1. In the event unsuitable material is encountered at or below the level of the

pipe bed, areas of doubtful quality shall be jointly examined by the OWNER

and the CONTRACTOR. If approved by the OWNER and after agreement

as to the extent of the area, such material shall be removed and replaced.

Materials used for replacement shall be crushed stone or gravel aggregate

conforming to VDOT No. 57 stone, as directed by the OWNER.

2. Undercut excavation shall be unclassified and shall consist of removing and

disposing of unsuitable material located below plan grade, or finished


subgrade, within the construction limits and in accordance with the Section

01150 – Measurement and Payment.

3. Undercut excavation shall be disposed of in a legal manner or as indicated

in the Contract Documents.

4. CONTRACTOR responsible for keeping undercut excavation dry.

L. Excavation Material Disposal: CONTRACTOR to assume responsibility for

disposal of all excavated materials and for payment of any dumping or tipping fees

associated with the disposed excavated materials. Any materials having been in

contact with sewer, as well as contents of cleaning trucks are to be disposed of by

federal, state and locally approved methods.

3.4 UNAUTHORIZED EXCAVATION

A. All excavation outside the lines and grades specified, and which is not approved

by the OWNER, together with the removal and disposal of the associated material

shall be at CONTRACTOR'S expense. Unauthorized excavations shall be filled

and compacted with No. 21A stone by CONTRACTOR at his expense.

3.5 SEWER ABANDONMENT

A. Sanitary sewers, storm sewers, sewer laterals and other culverts to be abandoned,

but not required to be removed, shall be thoroughly sealed at all open ends, and at

the structures in which they terminate as applicable. The open ends shall be sealed

with brick and mortar.

B. In addition to sealing open ends as specified above, and when specifically

required, all sewer mains, upon abandonment shall be filled by pumping with a

slurry sand/cement grout. Facilities to be filled shall be sealed at the downstream

end, pumped with the approved mixture, and sealed at the upstream end.

C. The bottom of abandoned structures shall be perforated or broken to prevent the

entrapment of water.

3.6 DRAINAGE AND DEWATERING

A. General:

1. Prevent surface and subsurface water from flowing into excavations and

from flooding adjacent areas.

2. Remove water from excavation as fast as it collects.


3. Maintain the ground water level below the bottom of the excavation to

provide a stable surface for construction operations, a stable subgrade for

the permanent work, and to prevent damage to the Work during all stages of

construction.

4. Provide and maintain pumps, sumps, suction and discharge lines and other

dewatering system components necessary to convey water away from

excavations.

5. Obtain the OWNER’s approval before shutting down dewatering system for

any reason.

B. Disposal of Water Removed by Dewatering System:

1. Dispose of all water removed from the excavation in such a manner as not

to endanger public health, property, or any portion of the Work under

construction or completed.

2. Dispose of water in such a manner as to cause no inconvenience to the

OWNER or others involved in work about the site.

3. Convey water from the construction site in a closed conduit. Do not use

trench excavations as temporary drainage ditches. Provide erosion and

sediment control devices as required by the Virginia Erosion and Sediment

Control handbook prior to discharge to any receiving stream.

3.7 SHEETING, SHORING AND BRACING

A. General: See Section 15051 – Buried Piping Installation, and Section 02151 –

Shoring, Sheeting, and Bracing for additional requirements.

1. Used material shall be in good condition, not damaged or excessively pitted.

All steel or wood sheeting designated to remain in place shall be new. New

or used sheeting may be used for temporary work.

2. All timber used for breast boards (lagging) shall be new or used, meeting the

requirements for Douglas Fir Dense Construction grade or Southern Pine

No. 2 Dense, conforming to the applicable requirements of current VDOT

Road and Bridge Specifications.

3. All steel work for sheeting, shoring, bracing, cofferdams etc., shall be

designed in accordance with the provisions of the “Specifications for the

Design, Fabrication and Erection of Structural Steel for Buildings,” of the

AISC except that field welding will be permitted.


4. Steel sheet piling shall be manufactured from steel conforming to ASTM A

328. Steel for soldier piles, wales and braces shall be new or used and shall

conform to ASTM A 36.

5. Maintain shoring and bracing in excavations regardless of time period

excavations will be open. Carry down shoring and bracing as excavation

progresses.

6. Unless otherwise specified, or ordered, all materials used for temporary

construction shall be removed when work is completed. Such removal shall

be made in a manner not injurious to the structure or its appearance or to

adjacent Work.

7. Safe and satisfactory sheeting, shoring and bracing shall be the entire

responsibility of CONTRACTOR.

B. Removal of Sheeting and Bracing:

1. Remove sheeting and bracing from excavations unless otherwise ordered in

writing by the OWNER. Removal shall be done so as to not cause injury to

the Work. Removal shall be equal on both sides of excavation to ensure no

unequal loads on pipe or structure.

3.8 TRENCH SHIELDS

A. Excavation of earth material below the bottom of a shield shall not exceed the

limits established by ordinances, codes, laws and regulations.

B. When using a shield for pipe installation:

1. Any portion of the shield that extends below the center line of an installed

rigid pipe shall be raised above this point prior to moving the shield ahead

for the installation of the next length of pipe.

2. The bottom of the shield shall not extend below the center line of installed

flexible pipe at any time.

C. When a shield is removed or moved ahead, extreme care shall be taken to prevent

the movement of pipe or structures or the disturbance of the bedding for pipe or

structures. Pipe or structures that are disturbed shall be removed and reinstalled as

specified.

3.9 GENERAL REQUIREMENTS FOR BACKFILL, FILL AND COMPACTION

A. Furnish, place and compact all backfill required for structures and trenches.

Unless otherwise specified, fill that meets the requirements of general backfill may


be obtained from on-site sources. Additional materials, if required, shall be

furnished from off-site sources at no additional cost to the OWNER.

B. The material from on-site excavation in unpaved areas shall be used as backfill for

a depth of 4 feet from top of the excavation. Use VDOT No. 21A as a backfill

material for the remainder of the excavation depth. VDOT No. 21A stone shall be

used as a backfill material for the entire trench depth for work in paved areas

(streets, roadways etc.).

C. Backfill excavations as promptly as Work permits, but not until removal of shoring

and bracing.

D. Keep excavations dry during backfilling operations. Bring backfill around

structures and piping up evenly on all sides.

E. Place all backfill in pipe trenches which are below structures, other pipes, or paved

areas, in horizontal layers not exceeding 8 inches in depth and thoroughly compact

each before the next layer is placed. In other pipe trenches, compacted layers shall

be 6 inches up to the pipe center line and 12 inches thereafter.

F. Where pipe is laid in rock excavation, pipe bedding shall be carefully placed and

tamped over the rock before the pipe is laid. Depth of bedding shall be at least 6

inches for pipe 24 inches and smaller and 9 inches for pipe 27 inches. After laying

pipe, the balance of the backfill shall be placed as described herein.

G. Prior to the installation of pipes which are to be installed in fill sections, place the

fill as described herein, until a minimum height of 2 feet above the pipe is reached.

The fill for the trench width shall then be excavated and the pipe installed and

backfilled. The remainder of the fill shall then be placed.

H. Unless otherwise specified or directed by the OWNER, fill shall be placed in

horizontal loose lifts not exceeding 12 inches in thickness and shall be mixed and

spread in a manner assuring uniform lift thickness after placing.

I. Control the water content of fill material during placement within the range

necessary to obtain the compaction specified. In general, the moisture content of

the fill shall be within 3 percent of the optimum moisture content for compaction

as determined by laboratory tests. Perform all necessary work to adjust the water

content of the material to within the range necessary to permit the compaction

specified. Do not place fill material when free water is standing on the surface of

the area where the fill is to be placed. No compaction of fill will be permitted

with free water on any portion of the fill to be compacted.


J. Do not place or compact fill in a frozen condition or on top of frozen material.

Remove fill containing organic materials or other unacceptable material and

replace with approved fill material.

K. Perform compaction of fill with equipment suitable for the type of material placed

and which is capable of providing the densities required.

L. Fill shall be compacted by at least two passes of all portions of the surface of each

lift by compaction equipment. One pass is defined as the condition obtained when

all portions of the surface of the fill material have been subjected to the direct

contact of the compactor.

M. Test the effectiveness of the equipment selected by CONTRACTOR at the

commencement of compaction by construction of a small section of fill within the

area where fill is to be placed. If tests on this section of fill show that the specified

compaction is not obtained, CONTRACTOR shall increase the number of

coverages, decrease the lift thicknesses or obtain a different type of compactor.

N. Perform backfill around structures using the specified procedures, except that

within 10 feet of foundations and underground structures, light compaction

equipment shall be used, with the gross weight of the equipment not exceeding

7,000 pounds. Provide equipment that is capable of the required compaction

within restricted areas next to structures and around piping.

O. The minimum density for backfill under structures and paved areas (not roadways)

shall be 95 percent of maximum density obtained in the laboratory in accordance

with ASTM D 698. Fill that supports piping, and walks and other unpaved areas

shall be 95 percent of maximum density. Minimum density for backfill under

roadways shall be in accordance with City of Richmond, Department of Public

Works Standards.

P. If the specified densities are not obtained because of improper control of

placement or compaction procedures, or because of inadequate or improperly

functioning compaction equipment, the CONTRACTOR shall perform whatever

work is required to provide the required densities. This work shall include

complete removal of unacceptable fill areas, and replacement and recompaction

until acceptable fill is provided.

Q. CONTRACTOR shall repair, at his own expense, any after settlement that occurs.

He shall make all repairs and replacements necessary within 30 days after notice

from the OWNER.

R. CONTRACTOR to provide OWNER with weigh tickets daily for select fill

material and disposal of excavated material disposal.


3.10 WORK WITHIN PUBLIC STREETS AND ROADS

A. Any Work performed in public streets, roads or alleys shall conform to the City of

Richmond and Virginia Department of Transportation requirements and

recommendations.

B. Repair of any pavement shall be in accordance with the City of Richmond and

Virginia Department of Transportation requirements and recommendations.

C. CONTRACTOR shall take all required actions to insure highway safety when

working within public streets and roads. Highway safety measures shall conform

to the requirements of the Virginia Work Area Protection Manual and ANSI D6.1,

Manual on Uniform Traffic Control Devices for Streets and Highways.

3.11 GRADING

A. Uniformly grade areas within limits of grading under this Section, including

adjacent transition areas. Smooth subgrade surfaces within specified tolerances,

compact with uniform levels or slopes between points where elevations are

specified, or between such points and existing grades. After grading, compact

subgrade surfaces to the depth and percentage of maximum density for each area

classification.

3.12 DISPOSAL OF EXCAVATED MATERIALS

A. Comply with requirements of Section 01564 – Waste Material Disposal.

END OF SECTION


SECTION 02513

RESTORATION OF PAVEMENT

PART 1 GENERAL

1.1 DESCRIPTION

A. Scope:

1. The CONTRACTOR shall furnish all labor, materials, equipment,

supervision, and incidentals to restore the surface and the base of the roads

included in the work to its original condition or in a manner suitable to the

OWNER.

2. The thickness, type and extent, of the surface to be replaced shall be the

same thickness as that removed, or damaged during construction, unless

otherwise directed or specified.

B. Virginia Department of Transportation Specifications:

1. The CONTRACTOR shall perform all work in accordance with the

applicable sections of the Virginia Department of Transportation Road and

Bridge Specifications, latest edition, and all addenda, revisions,

supplemental conditions and other requirements of the Virginia Department

of Transportation.

2. Utilize proper sign layout and channelization devices (i.e., Cones, plastic

barrels, pavement marking, etc.) during construction, according to VDOT's

Virginia Work Area Protection Manual.

C. City of Richmond, Department of Public Works Specifications:

1. The CONTRACTOR shall perform all work in accordance with the

applicable sections of the City of Richmond, Department of Public Utilities

Specifications, latest edition, and all addenda, revisions, supplemental

conditions and other requirements of the City of Richmond, Department of

Public Works.


A. Testing Laboratory:


1. CONTRACTOR shall provide testing laboratory, services conforming to

Section 01411 - Testing Laboratory Services Furnished by CONTRACTOR.

2. Testing Laboratory shall perform all tests required by VDOT.

3. Testing Laboratory shall perform in-place density tests as specified in Para.

3.3.B. conforming to ASTM D2922 and D2950.

B. Reference Standards: Comply with the latest revision of the applicable provisions

and recommendations of the following, unless otherwise directed or specified.

1. Virginia Department of Transportation, Road and Bridge Specifications.

2. ASTM D2922, Tests for Density of Soil and Soil-Aggregate In Place by

Nuclear Methods.

3. ASTM D2950, Test for Density of Bituminous Concrete In Place by Nuclear

Methods.

4. Virginia Department of Transportation, Minimum Standards of Entrances to

State Highways.

5. Virginia Department of Transportation, Road and Bridge Standards.

6. U.S. Department of Transportation, Federal Highway Administration,

Manual on Uniform Traffic Control Devices for Streets and Highways

(MUTCD), Latest Edition.

7. The Virginia Department of Transportation, Virginia Supplement to

MUTCD, Latest Edition.

8. ASTM D2922, Tests for Density of Soil and Soil-Aggregate In Place by

Nuclear Methods.

9. ASTM D2950, Test for Density of Bituminous Concrete In Place by Nuclear

Methods.

C. In addition to the requirements stated in the Virginia Department of Transportation

Specifications, the following requirements supplement, add to or modify those

Specifications and shall govern in all conflicting cases.

1. Applicable Standards: The work shall be done in accordance with the

following:


a. City of Richmond, Departmental Standards Drawing N-14000 (Sheets

1-25).

b. City of Richmond Sewer Specifications Issue of 1988.

c. City of Richmond Standard Specifications for Gas, Water System,

Construction and Maintenance DPU No. 1-92.

d. Bureau of Traffic Engineering, Traffic Order #2265 dated January 17,

1973, Traffic Control Specifications for street and sidewalk

construction.

e. Bureau of Traffic Engineering, Work Area Traffic Control Handbook

dated September 1988 (Volume 1 – Narrative & Illustrations and

Volume 2 – Traffic Control Layouts).

f. Latest rules and regulations governing construction, demolition and

excavation as adopted by the Safety Codes Commission of the

Commonwealth of Virginia.

g. Erosion and Sediment Control Handbook, Virginia Department of

Conservation and Recreation and Division of Soil and Water

Conservation.

1.3 VIRGINIA DEPARTMENT OF TRANSPORTATION ROAD & BRIDGE

SPECIFICATIONS – MODIFICATIONS: ADDITIONAL PROJECT

REQUIREMENTS

A. In the event of a conflict between the referenced VDOT Road and Bridge

Specifications and the modifications thereto listed below, the below listed

modifications shall govern.

B. Section 303 is amended as follows:

1. Excavation: All excavation encountered shall be considered unclassified,

shall consist of the removal of all materials encountered not specifically

provided for or included as a part of other bid items as indicated on the

drawings and shall include undercut excavation regardless of depth.

2. Side slopes shall be trimmed to neat lines and even surfaces with tops hand

raked to a rounded edge and slopes on a 2:1 where practical.

3. Where fill or backfill is required, it shall be made with suitable material

obtained from the project excavation if available. Should the

CONTRACTOR dispose of excavated material to the extent that sufficient


material is unavailable for fill purposes, extra payment will not be made for

furnishing the required borrow. All fill areas shall be compacted to 95% of

AASHTO T 99 maximum density.

C. Section 315 is amended as follows:

1. The CONTRACTOR shall lay bituminous concrete on one-half of the

roadway at a time. When laying the first half of the roadway, traffic will be

maintained on the opposite side of the street. Traffic will not be allowed on

the newly laid surface until it has cooled and been rolled sufficiently in the

opinion of the Engineer.

2. Flagmen or off-duty Police Officers shall be provided, if requested by the

Engineer. If Flagmen are requested by the Engineer and not provided, the

work will be suspended until they are placed on the job.

3. Before the laying of the base is started in any block, the CONTRACTOR

shall verify that all castings are to the proper grade. Manhole and valve box

frames shall meet or be not more than a quarter of an inch below a sixteen

(16') foot straightedge laid on the finished pavement parallel to the center of

the street.

4. After the surface has been laid, the CONTRACTOR shall pour cutback

asphalt around the top of the adapter and tops if necessary. Asphalt paint

applied to the curb lines shall not show more than one (1") inch above the

finished pavement grade. Any curbs marred by excess asphalt shall be

cleaned by the CONTRACTOR at his expense. Curbs marred or broken by

the CONTRACTOR's equipment shall be repaired or replaced at the

CONTRACTOR's expense.

5. When padding driveways a one (1") inch board shall be laid in the flow line

of the gutter, and the padding shall be rolled before removing the boards.

These boards shall be held in a straight line while rolling the ramp.

D. Stripping: The CONTRACTOR shall strip old asphalt paving where directed by

the Engineer, either to investigate the base or to make the desired tie-in at

intersecting streets. In cutting tie-ins only one-half of the street can be cut out at a

time and padding placed on that half before cutting the other half of each side of

the intersection.

1.4 SUBMITTALS

A. Shop Drawings: Submit proposed job mix formula for approval giving complete

data on materials; including source, location, percentages, temperatures, and all

other pertinent data.


B. Material Certificates:

1. Submit certificates for the following:

a. Coarse and fine aggregates from each material source and each

required grading.

b. Asphalt or tar cement for each penetration grade.

c. Job-mix design mixtures for each material or grade.

d. Density of uncompacted bituminous concrete.

e. Density of compacted bituminous concrete.

f. Density and voids analysis for each series of bituminous concrete

mixture test specimens.

g. Bituminous concrete plant inspection.

2. Certify that materials, mixtures and plant comply with Specification

requirements.

3. Certificates signed by CONTRACTOR.

1.5 JOB CONDITIONS

A. Weather Limitations: Use weather limitations in the VDOT Standards for the

following:

1. Application of bituminous prime coat.

2. Construction of base and surface courses.

B. Grade Control: Establish and maintain the required lines and grades, including

crown and cross-slope for each course during construction operations.

PART 2 PRODUCTS

2.1 MATERIALS

A. General:

1. Aggregate, mineral filler, bitumen, and prime coat shall be in accordance

with the VDOT specifications.


2. Aggregate includes stone, gravel, slag and sand.

3. Mineral filler includes limestone dust, Portland cement, or other inert

material.

4. Bitumen includes asphalt and tar cement.

5. Prime coat includes asphaltic cutback, tar or asphalt emulsion.

B. Aggregate Base Course: Material for the aggregate base course shall be Type II

aggregate base material, dense graded aggregate Size 21B and conforming with

the applicable portions of the VDOT Road and Bridge Specifications, Sections

208 and 203.

C. Asphalt Concrete Base Course: Materials for the asphalt concrete base course

shall be Type BM-25.0 conforming to the applicable portions of the VDOT Road

and Bridge Specifications, Section 211.

D. Seal Coat, Prime Coat and Tack Coat: Material for seal coat, prime coat and tack

coat shall conform to the applicable requirements of the VDOT Road and Bridge

Specifications, Section 210.

E. Asphalt Concrete Surface Course: Bituminous concrete surface course shall be

VDOT Type SM-9.5 D material conforming to the applicable requirements of of

the VDOT Road and Bridge Specifications, Section 211.

2.2 PAVEMENT MARKING MATERIALS

A. Traffic lane marking paint with chlorinated rubber base.

B. Factory mixed, quick drying and nonbleeding, FS TT-P-115, Type III.

C. Color: Shall be as existed prior to removal of the pavement.

PART 3 EXECUTION

3.1 INSPECTION

A. Examine the subgrade on which pavement shall be installed. Notify the OWNER

in writing of conditions detrimental to the proper and timely completion of the

Work. Do not proceed with the Work until unsatisfactory conditions have been

corrected in a manner acceptable to the OWNER.


3.2 SITE MAINTENANCE

A. The CONTRACTOR shall have no more than one hundred and fifty feet of street

or easement where the trench has been backfilled which has not been cleaned up.

If this length is exceeded the OWNER may stop the work unit the clean up is

caught up.

B. Construction Staging Area: The CONTRACTOR shall do the following:

1. Locate trailers and equipment as far as possible from nearby occupied

dwellings.

2. Keep the site neat and policed so that debris will not be transported to

neighboring properties by wind or other means.

3. Start construction equipment only when necessary in the mornings.

4. Do not leave construction equipment running needlessly.

5. Caution workmen to speak quietly and to use language that would not

offend citizens in the area.

6. Locate portable sanitary facilities on a secluded or concealed portion of the

site.

7. Where appropriate, provide lighting and/or fencing to make access to the

site during non-working hours more difficult.

8. When storing construction materials insure that they do not have a tendency

to become unstable.

9. Where dust may be a nuisance, provide means for dust control.

10. Backfill adjacent to and behind sidewalk and curb and cutter immediately

after stripping forms.

11. Access shall be maintained to all properties by the CONTRACTOR. The

cost of maintenance stone will be borne by the OWNER except in cases of

negligence on the part of the CONTRACTOR as determined by the

Engineer.

3.3 ADJUSTING UTILITIES AND CASTINGS

A. Resetting Castings: The CONTRACTOR shall be required to adjust sewer

manhole castings, gas, water valve and drip boxes to new grades. For large valve

and drip boxes the vertical adjustment shall be made with brick and cement


mortar. The entire base of the box shall be placed on brick when set to new grade.

For small valve boxes the vertical adjustment is made by screwing the top section

and/or by installing a new mid section.

1. Sewer manhole castings shall be reset to grade on brick with cement mortar.

Virginia Power and telephone manhole castings will be reset by the

respective utility. Old pavement removed to adjust gas, water valve and

drip boxes and sewer manhole castings shall be replaced with similar

pavement on graded streets.

2. The CONTRACTOR shall properly place and fit the sewer rings and

adapters. Rings and adapters improperly placed shall be cut out and

replaced at the CONTRACTOR's expense.

3. The CONTRACTOR shall remove all materials which he causes to fall in

the sewer manholes and basins and reset all castings the day the castings are

disturbed. Work shall not be resumed the next day on any new work if the

CONTRACTOR has failed to clean out any sewer manhole or basin and

reset the castings of previous day's work until such time as previous day's

work is complete.

4. Concrete collars around sewer manhole castings and valve boxes shall be

Class "A3" Type I or II cement and shall be protected from traffic for three

(3) days. Backfill for valve boxes set to grade shall be compacted with a

pneumatic tamp to a minimum of ninety-five (95%) percent density

(Proctor).

5. On ungraded streets, whose final surface shall be concrete, castings, gas,

water valve and drip boxes shall be set to grade at outline above without

concrete collar.

B. Adjusting Utilities: In the event any existing gas or water lines, fire hydrants or

services have to be adjusted, the CONTRACTOR will be required to notify the

Department of Public Utilities seventy-two (72) hours prior to the time set for

uncovering the existing lines, adjusting hydrants, or adjusting service boxes. Any

adjustment to gas-water lines or fire hydrants will be done by the Department of

Public Utilities' forces. Uncovering lines will be done by this CONTRACTOR.

C. Adjusting or Constructing Basin Slabs

1. Basin Slabs: Where required, variable size of monolithic curb, gutter and

basin slab, or slit open inlet adaptable to sub-basins and catch basins or drop

inlets shall be constructed as shown in the City of Richmond's Departmental

Standard Drawing N-14000.


3.4 CONSTRUCTION

A. Aggregate Base Course:

1. Furnish and place the aggregate base course in conformance with the lines,

grades, and cross section to match that of the existing pavement. Perform in

accordance with applicable portions of the VDOT Road and Bridge

Specifications, Section 309.

2. Construct the aggregate base to the depth required or directed and within

0.04 foot of the top of the aggregate base course elevation derived from the

existing grade elevations.

B. Prime Coat and Tack Coat:

1. Apply prime coat to the aggregate base course prior to placing the asphalt

concrete base course or the asphalt concrete surface course. Apply tack coat

between the layers of asphalt concrete base course and the asphalt concrete

surface course.

2. The method of application of the prime coat and tack coat shall conform to

the applicable requirements of Sections 310 and 311, respectively, of the

VDOT Road and Bridge Specifications.

3. Prime coat material shall be RC-70 applied at 0.4 gallons per square yard.

4. Tack coat material shall be RC-250 applied at 0.1 gallon per square yard.

5. The rate of application and type of asphalt material for prime coat or tack

coat may be modified by VDOT or by the Engineer to produce optimum

results based on the actual materials used and prevailing conditions during

construction.

C. Asphalt Concrete Subbase and Base Course:

1. Furnish and place hot mixed asphalt concrete base course on the completed

aggregate base course in conformance with the lines, grades, and cross

sections to match that of the existing pavement and in accordance with the

applicable portions of the VDOT Road and Bridge Specifications, Section

315.

2. A prime coat shall be applied to the aggregate base course prior to placing

the asphalt concrete base course and a tack coat shall be applied between

layers of the asphalt concrete base course.


3. Asphalt concrete base course thickness tolerance shall be in conformance

with the VDOT Road and Bridge Specifications, Sections 315.07. The

elevation of the base course shall not deviate by more than 0.04 foot from

the top of the final base course elevation derived from the grade elevations

of the existing pavement.

D. Asphalt Concrete Surface Course:

1. Furnish and place hot mixed asphalt concrete surface course on the asphalt

concrete base course in conformance with the lines, grades, and cross

sections of the existing pavement, or approved by the OWNER.

2. Thickness or application rate shall be as specified herein.

3. The asphalt concrete surface course shall be constructed in accordance with

the applicable requirements of the Section 315 of the VDOT Road and

Bridge Specifications.

E. Crushed Stone Roadway:

1. Conform to the applicable requirements of Para. 3.3.A. of these

Specifications.

F. Shoulder Restoration:

1. Shoulder restoration shall conform to the applicable requirements of Section

305 of the VDOT Road and Bridge Specifications.

G. Repair of Asphalt Surface Treatment:

1. Damaged asphalt surface treatment shall be repaired in accordance with

Section 315 of the VDOT Road and Bridge Specifications.

2. Backfill shall be select material, placed in 4-inch layers, and compacted

with pneumatic tampers to 95 percent Standard Procter Density.

3. Aggregate base shall be 1-1/2 times the existing aggregate base depth or 8

inches in depth, whichever is greater.

4. Asphalt or cement concrete base courses shall be placed to match existing.

5. The area shall then be primed using RC-250 at the rate of 0.35 gallon per

square yard and covered with No. 68 stone at the rate of 25 pounds per

square yard. After completion of the prime work, the area will then be

sealed using CAE-2 at the rate of 0.3 gallon per square yard and covered


with No. 78 stone at the rate of 25 pounds per square yard. This treatment

shall match the existing pavement elevation and cross section and result in a

smooth riding surface.

3.5 PAVEMENT QUALITY REQUIREMENTS

A. General: In addition to other specified conditions, comply with following

minimum requirements:

1. Provide final surfaces of uniform texture, conforming to the grades and

cross sections required or directed or matching that of the existing

pavement.

B. Density:

1. If directed by the Engineer, compare density of in-place material against

laboratory specimen or certificates on same asphalt concrete mixture. Use

nuclear devices.

2. Minimum acceptable density of in-place course material will be 90 percent

of the recorded laboratory specimen or certificate density. Maximum

acceptable density will be 98 percent.

C. Thickness: In-place compacted thicknesses shall equal or exceed the thickness

directed or specified.

D. Surface Smoothness:

1. Test finished surface of each asphalt concrete course for smoothness, using

a 10-foot straightedge applied parallel to and at right angles to centerline of

paved areas.

2. Check surfaced areas at intervals directed by Engineer.

3. Surfaces will not be acceptable if deviations exceed the following:

a. Base Course: 3/8 inch in 10 feet.

b. Surface Course: 1/4 inch in 10 feet.

c. Crowned Surfaces:

(1) Test crowned surfaces with a crown template, centered and at

right angles to the crown.

(2) Surfaces will not be acceptable if varying more than 1/4 inch

from the template.


3.6 PATCHING

A. As directed by the OWNER, remove and replace all defective areas. Square cut

such areas and apply a tack coat, and fill with material matching existing road

surface. Compact to the required density.

3.7 CLEANING AND PROTECTION

A. Cleaning: After completion of paving operations, clean surfaces of excess or

spilled asphalt materials and all foreign matter.

B. Protect newly finished pavement until it has become properly hardened.

C. Protect openings of drainage structures in the area of paving until permanent

coverings are placed.

3.8 MARKING PAVEMENT

A. Cleaning:

1. Sweep surface with power broom supplemented by hand brooms to remove

loose material and dirt.

2. Do not begin marking pavement until approved by Engineer.

B. Application:

1. Using mechanical equipment, provide uniform straight edges in two

separate coats. Apply in accordance with paint manufacturer's

recommended rates.

C. Locations:

1. Pavement to be marked in accordance with the markings which existed prior

to removal or damage of the pavement.

2. Pavement markings at entrances to Residuals Storage Facilities shall comply

with VDOT Standards.

3.9 CURBS, GUTTERS, SIDEWALKS AND DRIVEWAYS

A. Curbs and Gutters: Curbs and gutters shall conform to Section 502 of the VDOT

Road and Bridge Specifications.

B. Restoration of concrete curbs and gutters, sidewalks and driveways shall be done

in full section. Patching or piecing of blocks will not be permitted.


C. Permanent Driveways: The CONTRACTOR is advised that all existing

permanent driveways on the project are to be removed and replaced with new

concrete driveway crossing when so designated on the contract drawings or when

new curb and gutter is to be installed as part of this contract. A permanent

driveway shall be defined as a curb cut on a street which has existing curb or curb

and gutter. All other driveways shall be considered temporary driveways and the

property owner will be required to obtain a permit from the OWNER for a

permanent driveway which shall be installed during construction of the project.

The property owner may elect to have the CONTRACTOR install the new

permanent driveway or secure another contractor of his or her choice.

D. Salvage of Sidewalk Brick, Granite Spall, Cobblestone, Granite Curb, Durax

Block, And Other Building Materials: All salvaged materials are to be salvaged

and removed to OWNER approved storage area. CONTRACTOR responsible for

loss or damage of material salvaged during removal and storage. All salvaged

materials are to be handled with due care to avoid breakage and chipping. Granite

curb is to be carefully stacked with wooden strips between layers.

CONTRACTOR to replace lost or damaged salvaged materials at no cost to the

OWNER. Removal of salvaged materials to designated storage areas and proper

storage at those areas will be paid for under specific bid items.

E. Brick Sidewalk on Concrete Base

1. General: The work of this section shall comprise the furnishing, installing

and restoration of brick sidewalk as noted on the contract drawings. Brick

for new sidewalks and sidewalks that replace existing concrete sidewalks

shall be a North Carolina Common or an approved equal. Bricks for

reconstructed brick sidewalks shall consist of the existing bricks within the

area or areas of brick sidewalk designated on the contract drawing as brick

sidewalk improvement.

2. Preparation of Subgrade: The subgrade for new brick sidewalks,

reconstructed brick sidewalks, and sidewalks that replace existing concrete

sidewalks shall be prepared by the removal and satisfactory disposal of all

unsuitable material above the normal subgrade. All unsuitable material

shall include existing concrete sidewalk. Any material removed above

normal subgrade shall be disposed of by the CONTRACTOR in an area

approved by the OWNER. No tree roots encountered above normal

subgrade will be cut unless approved by the Engineer.

a. Wherever the existing ground surface is below normal subgrade, the

ground surface shall be brought up to normal subgrade with a suitable

material approved by the Engineer. The CONTRACTOR shall be

responsible for supplying all material required to bring the existing


ground surface up to normal subgrade and shall be part of the bid

price for sidewalk.

b. Subgrade shall be compacted to a theoretical density of 95% at

optimum moisture and shall be graded off to a surface that will not

vary more than 1/2" at any one point from normal subgrade.

Wherever tree roots prevent excavation of existing ground surface to

normal subgrade, subgrade will be determined by the Engineer in the

field.

3. Concrete Base: Upon compaction and grading of subgrade, the subgrade

shall be cleaned of all loose and foreign material before the concrete

bedding is poured. After this has been done, a 4" concrete slab shall be

placed on the compacted subgrade.

4. Laying Brick: Bricks shall be stored in areas designated by the Engineer.

All bricks shall be carefully laid with the best face up in the pattern noted on

the contract drawings or designated by the Engineer. Bricks shall be cut,

not broken; using a high-speed masonry saw producing clean, sharp edges.

5. The bricks shall be laid on a 1/2" mortar bed with 1/8" joints between

bricks. A 1:3 cement-sand mixture shall be swept into the joints between

bricks and lightly sprayed with water. The CONTRACTOR is responsible

for removing all excess cement-sand mixture from surface of sidewalk prior

to spraying water.

F. Brick Sidewalk on Cement-Sand Bedding

1. Description: The term Brick Sidewalk shall refer to the removal and

replacement of existing concrete sidewalks and brick sidewalks with all new

bricks set on a sand cement bed as noted on the contract drawing.

2. Brands of Brick: Brick for new sidewalks and sidewalks that replace

existing concrete sidewalks shall be a North Carolina Common or approved

equal.

3. Preparation of Subgrade: The subgrade for new brick sidewalks and

sidewalks that replace existing concrete sidewalks shall be prepared by the

removal and satisfactory disposal of all unsuitable material above the

normal subgrade. Unsuitable material shall include existing broken

concrete sidewalk and existing brick sidewalk. Any material removed

above the normal subgrade shall be disposed of by the CONTRACTOR in

an area approved by the Engineer. Tree roots encountered above normal

subgrade shall not be cut unless approved by the Engineer.


4. Wherever the existing ground surface is below normal subgrade, and a

property wall exists, the ground surface shall be brought up to normal

subgrade with a suitable material approved by the Engineer. The

CONTRACTOR shall be responsible for supplying all material required to

bring the existing ground surface up to normal subgrade and shall be part of

the bid price for Brick Sidewalk. In addition, if any area adjacent to the

brick sidewalk, on the property line side of the sidewalk, shall be lower than

the proposed sidewalk, the area between the property line and the sidewalk

edge shall be filled in and compacted with an approved material and seeded.

5. Subgrade shall be compacted to a theoretical density of 95% at optimum

moisture and shall be graded off to a surface that will not vary more than

1/2" at any one point from normal subgrade. Wherever tree roots prevent

excavation of existing ground surface to normal subgrade, subgrade will be

determined by the engineer in the field.

6. Back Face of Sidewalk: Wherever curb or an adjoining property wall do not

exist on the property line of a new brick sidewalk or sidewalks that replace

existing concrete or existing brick sidewalks, a retaining row of bricks shall

be set for the purpose of preventing the new brick sidewalk from sloughing

off. This retaining row of bricks shall be formed by setting new sidewalk

brick on end, side to side, in a row along the back edge of the sidewalk. The

lower portions of the retaining row of bricks shall be embedded in 2" of a

1:3 cement mortar. The cost of the retaining row of bricks shall be included

in the unit prices for brick sidewalk.

7. In the event the adjoining property is more than 10" above or below grade at

the property line, a concrete retaining wall in accordance with RW-2 or

RW-3 shall be constructed for the purpose of retaining the back face edge of

the proposed brick sidewalk.

8. Tree Boxes: Wherever trees exist within the brick sidewalk area or

wherever trees are to be placed in the brick sidewalk area, a tree box shall

be formed with the bricks which are to be used in the brick sidewalk. The

tree box shall be 5' by 5' (unless otherwise noted on the drawings) and shall

be formed by embedding bricks on side, end to end, in 2" of a 1:3 cement

mortar.

9. Cement-Sand Bedding: Upon completion of compaction and grading of the

subgrade, the subgrade shall be cleaned of all loose and foreign material. A

uniform layer of a 1:3 cement-sand mixture, 4" thick, shall be placed upon

the subgrade. This cement-sand bedding shall be screeded off and densified

by tamping or rolling so that the top surface of the cement-sand bedding will

be smooth with no more than 1/4" variation from a flat plane and shall be

densified to 95% of theoretical density, at optimum moisture. Sand used for


sand bedding shall be uniform in gradation and free from foreign material.

Cement shall be Portland Cement and conform to ASTM C150. The

cement-sand mixture may be mixed in place by the CONTRACTOR.

10. Laying Brick: Bricks will be stored in areas designated by the Engineer.

All bricks shall be carefully laid with the best face up in the pattern noted on

the contract drawings or designated by the Engineer. Bricks shall be cut,

not broken; using a high-speed masonry saw producing clean, sharp edges.

11. The bricks shall be laid with a uniform 1/8" joint between each brick and

joints shall be filled with a 1:3 cement-sand mixture. Sand used for filling

joints shall be very fine in gradation and cement shall be Portland Cement

which conforms to ASTM C150. Wooden mallets or the wooden end of a

brick mason's hammer will be used to strike each brick to insure a proper set

during placement of the bricks and after sweeping the cement-sand mixture

into the joints.

12. Wetting Sequence: Once the cement-sand bedding is in place and the bricks

have been set upon the bedding, water shall be applied to the bricks in a

sufficient amount to insure hydration of the cement-sand bedding material.

After the brick sidewalk surface has completely dried from the initial

wetting for hydration of the bedding, the joints shall be filled with a dry

cement-sand joint filler and wet a second time for hydration of the joint

filler. Wooden mallets or the wooden end of a brick mason's hammer will

be used to strike each brick to insure a proper set during placement of the

bricks and after sweeping the cement-sand mixture into the joints. The

CONTRACTOR will be responsible for cleaning the brick surface of any

cement-sand material.

G. Special Brick Sidewalk Condition: Whenever an existing brick sidewalk is to be

replaced with all new brick and existing brick sidewalk restoration is a part of the

contract, the existing brick sidewalk to be replaced shall be removed by hand, by

the CONTRACTOR, culled and cleaned and used for the brick sidewalk

restoration. The unit price bid per square yard for brick sidewalk restoration shall

include the cost of removing by hand, culling and cleaning of the existing bricks

and moving to restoration area. If no brick sidewalk restoration is part of the

contract, the OWNER will remove part or all of the existing brick in any area

where existing brick sidewalk is to be replaced with all new brick sidewalk. All

bricks which remain, after the OWNER has completed its brick sidewalk removal

process or after bricks have been removed for brick sidewalk restoration as part of

the contract, shall be considered unsuitable material above subgrade.


H. Restore Brick Sidewalk: Restoration and Spot Replacement

1. This item shall cover all work involved in spot replacement of missing brick

and the restoration to proper grade of existing brick sidewalk where noted

on the contract drawings.

2. Bricks in existing sidewalks where designated for restoration shall be

removed by hand and the subgrade shall be cut or filled, as required, until a

proper subgrade is obtained. Sand which is uniform in gradation and free of

foreign material shall be used as a fill material. The bricks removed and

replacement brick shall then be placed back in the sidewalk in such a

manner as to conform to the pattern of the sidewalk adjacent to the area

restored. Bricks shall be cut, not broken; using a high-speed masonry saw

producing clean, sharp edges. Once the existing bricks have been placed

back in the sidewalk, joints shall be filled with a 1:3 cement-sand mixture.

Sand used for filling joints shall be clean and very fine in gradation and

cement shall be Portland cement which conforms to ASTM C150. Wooden

mallets or the wooden end of a brick mason's hammer will be used to strike

each brick to insure a proper set during placement of the bricks and after

sweeping the cement-sand mixture into the joints. After the joints have

been filled with the cement-sand mixture, the brick sidewalk surface shall

be cleaned of all residue cement or sand by means of sweeping, washing, or

cleaning with an acid solution.

3. Once the brick sidewalk surface has been cleaned to the satisfaction of the

Engineer, a light coat of clean fine graded sand shall be placed on the brick

sidewalk surface for the purpose of producing a non-skid surface and to

insure complete filling of the joints. This light coat of sand will be removed

by the CONTRACTOR at the end of the job.

4. Whenever there is a deficiency of existing brick in an area designated for

brick sidewalk restoration, the deficiency shall be corrected by obtaining

bricks from areas designated for removal of existing brick sidewalk and

replacement with new brick or concrete. The existing brick sidewalk shall

be removed by hand, by the CONTRACTOR, culled and cleaned and used

for the existing brick sidewalk restoration. If no brick sidewalk removal and

replacement with new brick or concrete is part of the contract, the

CONTRACTOR will obtain all bricks needed for restoration work from the

OWNER storage yard and haul them to the site. If this is to occur it will be

noted on the drawings or made a part of the additional requirements of the

project.


I. Realigning/Setting Granite Curb

1. Realigning: Granite curb to be realigned shall be carefully removed from its

present bed. The curb trench shall be graded and compacted so as to

provide the realigned curb minimum clearances of 4" under the curb and 6"

in front of and behind the curb. The curb shall then be placed back in the

trench and shimmed to correct line and grade with brick. After the curb has

been realigned, the curb trench shall be backfilled with concrete to a

minimum depth of 12". Special care shall be taken to insure that the

concrete completely fills the space under the granite curb.

2. Setting: This item includes the replacement of existing curb in bad

condition, filling in where curb is missing or setting a new granite curb line.

Where additional curb is specified, it will be furnished by the OWNER and

hauled to the site by the CONTRACTOR. The curb trench shall be

excavated, graded, and compacted so as to provide the new/replacement

curb minimum clearances of 4" under the curb and 6" in front of and behind

the curb. The curb shall be placed in the trench and shimmed to correct line

and grade with brick. After the curb has been set, the curb trench shall be

backfilled with concrete to a minimum depth of 12". Special care shall be

taken to insure that concrete completely fills the space under the granite

curb.

3. Joints: Joints between the sections of granite curb above the gutter line

wider than one-quarter (1/4) of an inch will not be accepted, and any rough

ends of the sections will have to be chiseled by the CONTRACTOR at his

expense to reduce the joint width to less than one-quarter (1/4) inch. The

joints shall be filled with 1:3 cement sand mortar.

J. Concrete Curb & Gutter, Valley Gutter

1. For typical Monolithic Curb and Gutter section see Plan N-14000, Sheet

#16. For typical valley gutter section see Plan N-14000, Sheet #26. Use

plan design specified.

2. Three (3") inch to four (4") inch holes shall be left in the curb opposite each

downspout to each house. Valley gutter shall not require holes.

3. Concrete curb or curb and gutter will not be considered complete for

payment until properly backfilled and compacted to the satisfaction of the

Engineer. Backfilling and compaction shall be done as soon as practicable

after forms are stripped.


K. Wheel Chair Ramps: This item shall include all work involved in the construction

of ADA approved wheel chair ramps. All existing curb and sidewalk shall be

removed without injury to curb and sidewalk designated to remain and shall be

satisfactorily disposed of by the CONTRACTOR. The CONTRACTOR shall then

perform all required excavation or furnish and place an approved fill material so as

to obtain a proper subgrade. The subgrade shall then be compacted to a theoretical

density of 95% at optimum moisture for a depth of 6 inches. A 6 inch thick wheel

chair ramp shall then be constructed per Standard CG-12 (latest revision). All

asphalt pavement reconstruction required in connection with construction of wheel

chair ramps shall be performed as part of the bid unit price for wheel chair ramps.

1. Exposed Aggregate Finish shall be performed by wirebrushing, blasting, or

surface retarder unless another method is approved by the Engineer.

2. Concrete for the exposed aggregate finish shall conform to the requirements

of Section 203 of the specifications for the class specified, except that gravel

shall be uncrushed, and tan or brown in color.

3. The CONTRACTOR shall provide a sample of the exposed aggregate finish

for approval by the Engineer prior to beginning work. The sample shall be

at least 12 inches by 12 inches and approximately 2 inches in depth. The

approved sample shall be kept at the work site for comparison to completed

work.

L. Cement Concrete Sidewalk: The concrete shall be screeded to a true surface, free

from depression and other irregularities and shall be floated with a magnesium

alloy float. After it has taken its original set, it shall be floated again with a

magnesium alloy float to produce a hard smooth finish free from water. The

surface shall be given a light broom finish acceptable to the Engineer.

1. Should the sidewalk be too wide to properly finish from each side, it shall

be bridged so that the concrete will not be disturbed after it is screeded.

2. Wherever full width sidewalk is placed from the curb to the property line,

the sidewalk shall be placed in alternate blocks. The size of these blocks

shall be determined by the Engineer. Every effort shall be made to maintain

color and texture.

3. Where there are soil pipes draining into the streets at a lower elevation than

the proposed gutter grade, the CONTRACTOR will relay these pipes under

the sidewalk before paving, provided the property owner furnishes the

necessary soil pipe. This item may be deleted in whole or in part and shall

only be done if included as a bid item.


4. Entrance walks connecting with the city sidewalk that have to be cut off

shall be cut with a concrete saw and all exposed ends faced up with mortar

cement, leaving a neat appearing surface. The cost of this work is to be

included in the price bid per square yard for concrete work.

3.10 MISCELLANEOUS PAVEMENT

A. Restore Durax Block Pavement

1. Description: Work shall consist of restoring damaged areas of pavement

with Durax Granite Paving Block, laid on a cement-sand base, with the

joints filled with asphalt and the entire surface covered with a pea gravel or

stone chip covering.

2. Durax Block: Durax Block shall be furnished by the OWNER. It shall be

picked up from the OWNER storage area and hauled to the site by the

CONTRACTOR; the cost of this work shall be included in the unit price bid

for the restoration work.

3. Cement-Sand Bedding: The cement-sand bedding shall consist of one (1)

part of Portland cement and three (3) parts of sand mixed dry in a

mechanical batch concrete mixer for one (1) minute.

a. The sand used shall conform to VDOT Specifications, sec. 202, for

Grading C.

b. The cement-sand bedding shall be not less than one-half inch or more

than one and one-quarter inches in thickness after blocks have been

laid and rolled.

4. Laying Durax Block: The Durax block shall be laid on the cement-sand

bedding in concentric, interlocking segments of about three (3) foot radius,

with broken joints, or to meet existing. The upper or wearing surface of

each block shall be flush with the general surface of the pavement, and four

(4) inches above the concrete base, if used, when the pavement is

completed. No joints between the blocks shall be more than one-half nor

less than one-quarter of an inch wide at the surface.

5. The joints shall then be filled by broadcasting with shovels and brooming in

with a hand broom, gravel which shall be clean and conform to VDOT

Specifications, sec. 203, for VA. size No. 78.

6. Ramming, Sprinkling, and Rolling: The pavement shall then be rammed

with a double rammer weighing not less than 125 pounds striking a steel

plate .75"x10"x18".


7. The pavement shall then be sprinkled and then rolled with a tandem roller

weighing not less than five tons. The rolling shall begin at the gutter and

proceed toward the center of the street overlapping on successive trips by

one-half the width of the roller. The pavement shall then be rolled

diagonally in two directions (at 90). If the rolling is omitted, with the

approval of the Engineer, the pavement shall be re-tamped with a double

rammer and steel plate after sprinkling.

8. At this time the pavement shall be checked with a ten (10) foot straight edge

laid parallel with the center of the street and all irregularities greater than

one-quarter inch shall be corrected.

9. Asphalt Joint Filler: The gravel filler in the joints shall have thoroughly

dried before any asphalt joint filler is poured. The length of time necessary

for this drying depends upon the weather conditions, and will be determined

by the Engineer.

a. The filling of the joints shall follow as closely behind the paving

operations as the drying of the gravel in the joints will permit. The

laying of the Durax block will be stopped if the filling of the joints is

not kept up with the paving operations, to the satisfaction of the

Engineer.

b. Approved kettles or tanks of not less than 200 gallons capacity shall

be used for the heating of the filler. Joints shall be filled by pouring

the asphalt joint filler on the pavement and squeegeeing it into the

joints until they are full or by any other method approved by the

Engineer. The temperature at which the joint filler is to be used shall

be approved by the Engineer.

c. The asphalt cement joint filler shall conform to VDOT Specifications,

sec. 210, for asphalt cement penetration grade 60-70.

10. Cover Material: The pavement shall be immediately covered with clean

stone chips or pea gravel heated above 250F and meeting VDOT

Specifications, sec. 205, for VA. size No. 78.

11. Obligation of CONTRACTOR at End of Warranty Period: In addition to

the proper maintenance of the pavement during the period of warranty,

which shall include sanding if the surface becomes sticky in hot weather, the

CONTRACTOR shall at his expense, just before the expiration of the

warranty period, make such repairs as are necessary to the pavement where

it shows indication of having been defectively constructed.


B. Restore Granite Spall Pavement

1. Description: This pavement is a roughly cut granite block wearing surface

as hereinafter described and locally known as "Spall". These Spall are to be

laid in a cement sand bed with sand and gravel filler or asphalt joint filler

and chip covering. The base is specified and paid for separately. Unless

otherwise specified the OWNER will furnish the Spall.

2. Granite Spall: Granite Spall shall be from four (4) to seven and one-half (7

1/2) inches deep, from three (3) to six (6) inches wide and from three (3) to

ten (10) inches long. The sides shall permit laying with joints not over

three-quarters (3/4) of an inch in width and joints of that width shall be

exceptional. The upper face shall be uniform to permit laying to the general

surface of the pavement.

3. Cement Sand Bedding: The Cement Sand Bedding shall consist of one (1)

part of Portland cement and four (4) parts of sand mixed dry in a mechanical

batch concrete mixer for one (1) minute.

a. The sand used shall conform to VDOT Specifications, sec. 202,

grading C.

b. The Cement Sand Bedding shall not be less than two (2) inches thick;

however, no more of this Bedding shall be placed than will permit the

placing, tamping, and rolling of the Spall before the initial set of the

Cement Sand Bedding.

4. Laying Spall: On this Cement Sand Bedding the Granite Spall shall be laid

at right angles to the center of the street. Each course of Spall shall be

approximately of uniform width and depth, and so laid that all longitudinal

joints shall be broken by a lap of at least two (2) inches. As each course is

laid the Cement Sand Bedding will fill the joints to within three (3) inches

of the surface of the pavement. Irregular shaped and odd sized Spall shall

be culled by the pavers.

a. After the Spall have been laid, the joints shall then be filled by

broadcasting with shovels from wheelbarrows and brooming in with

rattan or wire brooms ramming gravel, which shall be clean, and meet

the specifications given in Sec. 203 for gradation 57.

5. Ramming, Sprinkling and Rolling: After the joints of the pavement have

been filled with ramming gravel, the pavement shall then be thoroughly

rammed with double rammers weighing not less than on hundred and

twenty-five (125) pounds, to a firm unyielding bed with uniform surface and

to the proper grade and crown.


a. Immediately after the ramming, the paving shall be sprinkled with a

hose.

b. The pavement then shall be thoroughly rolled with a power driven

tandem roller weighing not less than five (5) tons, first longitudinally,

beginning at the outer edge of the pavement and proceeding towards

the center, overlapping on successive trips by at least one-half (1/2)

the width of the roller.

c. The paving shall then be rolled again diagonally in two (2) directions,

the second diagonal rolling crossing the line of the first until all of the

Spall have been properly embedded in the Cement Sand Bedding.

d. The rolling shall be omitted at intersections and on grades steeper

than five (5) percent if directed to do so by the OWNER, in such

cases when rolling is omitted the pavement shall be thoroughly

rammed again after it has been sprinkled.

e. At this time the pavement shall be tested with a ten (10) foot straight

edge laid parallel with the center line of the pavement and any

irregularities exceeding one-quarter (1/4) of an inch must be

corrected as directed by the OWNER either by additional ramming,

rolling or the re-laying of the Spall.

6. Sand Joint Filler: When Sand Joint Filler is specified, the surface of the

pavement shall be covered with clean sand. River sand may be used if it

meets the approval of the OWNER or sand conforming to the specifications

given in VDOT Section 202, grading C may be used. This sand shall be

thoroughly broomed into the joints with hand brooms and sufficient sand

added to leave one-half thick covering cover the Spall when the street is

opened to traffic.

7. Asphalt Joint Filler: When "Asphalt Joint Filler" is specified in the

Proposal the gravel filler in the joints shall have thoroughly dried before any

filler is poured. The length of time necessary for this drying depends upon

weather conditions, and will be determined by the OWNER.

a. The filling of the joints shall follow as closely behind the paving

operations as the drying of the gravel in the joints will permit. The

laying of the Spall will be stopped if the filling of the joints is not

kept up with paving operations to the satisfaction of the Engineer.

b. Approved kettles or tanks of not less than 200 gallons capacity shall

be used for the heating of the filler. Joints shall be filled by pouring

the Asphalt Joint Filler on the pavement and squeegeeing it into the


joints until they are full, or by any other method approved by the

Engineer.

c. The temperature at which the Joint Filler is to be used shall be

approved by the Engineer.

d. The Asphalt Cement Joint Filler shall conform to the VDOT

Specifications given in Section 210 for asphalt materials, penetration

grade 60-70.

8. Covering Material: Pea Gravel or Stone Chip Covering will only be used if

asphalt filler is specified. The pavement shall be immediately covered with

Pea Gravel after the filler has been poured. The Pea Gravel or Stone Chip

shall be heated to a temperature approved by the Engineer. It shall be clean

and conform to the specifications given in VDOT Sec. 203, for VA. size No.

8P.

9. Obligation of CONTRACTOR at End of Guarantee Period: In addition to

the proper maintenance of the pavement during the period of guarantee,

which will include refilling sand filled joints if they become open and

sanding the surface if pavement with asphalt joint filler becomes sticky in

the hot weather, the CONTRACTOR shall at his expense, just before the

expiration of the guarantee period, make such repairs as necessary to the

pavement where it shows indication of having been defectively constructed.

C. Solid Concrete Paving Units - Paving units shall be installed in accordance with

manufacturer's specifications, and shall include supply and placement of solid

concrete paving units and joint filling sand, excavation, granular base course, sand

bedding course, and edge restraints.

3.11 SITE MAINTENANCE

A. Throughout all phases of construction, the CONTRACTOR shall keep the work

site clean and free from rubbish, debris and dust. Dust nuisance shall be abated by

cleaning, sweeping, sprinkling with water or calcium chloride at no additional cost

to the OWNER. Care shall be taken to prevent spillage on haul routes. Any such

spillage shall be removed immediately and the route cleaned. If the use of water

results in mud tracking on adjacent streets, the project will be shut down until

streets are cleaned by the CONTRACTOR at his expense and no extra time will be

allowed for the time thus lost. Materials and equipment shall be removed from the

site as soon as they are no longer needed. If the CONTRACTOR does not respond

to the requests to clean the streets, they shall be cleaned by the OWNER and the

cost shall be deducted from payments due the CONTRACTOR.


B. The CONTRACTOR shall maintain all trenches in a manner acceptable to the

OWNER until the trenches are accepted and approved for the replacement of

pavement. After paving or restoration is completed, the CONTRACTOR shall be

responsible for a period of twelve months for any settlement of trenches or

damages which may occur, requiring additional fill, additional pavement or other

corrective measures.

C. The CONTRACTOR shall promptly take such corrective action as may be

necessary to return the trenches to acceptable condition when notified by the

OWNER.

D. If the restoration or repair of defects is not completed in a reasonable length of

time, and after due notice the CONTRACTOR fails to complete the work, the

OWNER will do whatever is necessary to restore the roadway and right of way to

its original condition and complete the Work. The OWNER will deduct the actual

cost of such work plus a percentage of overhead and handling from the

CONTRACTOR estimate or will bill the CONTRACTOR for the actual cost plus

a percentage for overhead and handling of the Work, whichever is applicable.

END OF SECTION


SECTION 02651

TELEVISION INSPECTION

PART 1 GENERAL

1.1 SUMMARY

A. Section Includes: Closed circuit television (CCTV) inspection of underground

pipeline mainlines, laterals, side sewers, and manholes to assure pipes have been

cleaned, to allow for a determination of rehabilitation needs, to document pre-

rehabilitation condition, or to document post-rehabilitation condition. Work may

include raising paved over or buried manholes and replacing manhole frames and

covers for CCTV inspection.

B. Related Work Specified in Other Sections Include:

1. Section 02150 - Bypass Pumping

2. Section 02652 - Sewer Manhole Inspection.


1.2 REFERENCES

A. Codes and standards referred to in this Section are:

1. National Association of Sewer Service Companies (NASSCO), Pipeline

Assessment and Certification Program©.

2. Virginia Occupational Safety and Health (VOSH) Compliance Program.

1.3 DEFINITIONS

A. Survey CCTV Inspection: Survey CCTV inspection is a video inspection by the

CONTRACTOR of sewer pipelines to determine existing conditions of the pipe

and the service lateral connections. Survey CCTV inspection includes the pan-

and-tilt video inspection of manholes. Survey CCTV inspection of the laterals

includes video inspection of service laterals using lateral launch cameras through

mainline sewers to determine existing conditions of the laterals.

1.4 SYSTEM DESCRIPTION

A. Performance Requirements:

1. Perform CCTV inspection using personnel trained and certified in the use of

NASSCO’s Pipeline Assessment and Certification Program© (PACP).


Contractor shall submit PACP training certificates of all personnel doing the

work, to the OWNER. Survey records are to conform to the latest NASSCO

PACP codification.

2. Be aware that this Contract requires work in active sanitary and storm

sewers, and follow all federal, state, and local requirements for safety in

confined spaces. Conform to all guidelines set forth by VOSH Compliance

Program and be solely responsible for safety during performance of all

Work.

3. Be responsible for any damage to public or private property resulting from

the televising activities, and repair or otherwise make whole such damage at

no cost to OWNER.

4. Provide all necessary equipment:

a. CCTV Equipment: Select and use CCTV equipment that will record

onto a color digital recorder in a format compatible for transfer to

USB flash drive or external hard drive. Provide CCTV equipment

that produce instant color photographs of problem areas to document

unusual, questionable, or severe conditions found during the course of

the work. Take photographs whenever the condition ranking exceeds

a NASSCO PACP codification grade 3.

(1) Use television monitor and other components of the video

system capable of producing a minimum 500-line resolution

colored video picture.

b. Pipe Inspection Camera: Select and use a pan-and-tilt, radial viewing,

zoom capable pipe inspection camera specifically designed and

constructed for sewer inspections that is able to transmit a continuous

image to the television monitor as it travels through the sewer segment.

Provide cameras that are designed and manufactured for the inspection of

service laterals and side sewers that have a minimum diameter of 3”. Use

lateral launch cameras for service lateral inspection. The cameras shall

be able to pass through a 2-inch opening and to inspect 3- to 8-inch

diameter lateral pipes at least 70 feet from the mainline sewer. Use a

camera that is operative in 100 percent humidity conditions. Use a

pipe inspection camera that is provided with the following:

(1) Inspection Camera Pan-and-Tilt: Use a pipe inspection camera

that pans ± 275 degrees and rotates 360 degrees.

(2) Inspection Camera Zoom: Use a pipe inspection camera that is

capable of zooming 12X.


(3) Inspection Camera Footage Counter: Use a camera with an

accurate footage counter which displays on the monitor the

distance of the camera from the centerline of the starting

manhole. Use a camera that has a minimum of 1,000 feet of

coaxial cable.

(a) Accuracy: Do not use marking on cable, or the like,

which would require interpolation for depth of manhole.

Use measurement meters that are accurate over the entire

length of the sewer line section being inspected and have

an error less than or equal to 2 feet per 100 feet. Prior to

recording the location of defect, service connection, etc.,

take up slack in the cable of the television inspection

camera to assure metering device is designating proper

footage. Check accuracy of the measurement meters

daily by use of a walking meter, roll-a-tape, or other

suitable device.

(4) Inspection Camera Resolution: Use a pipe inspection camera

that is a high-resolution color chip camera capable of producing

a minimum 500-line resolution colored video picture. Provide

picture quality and definition that is to the satisfaction of the

OWNER, but if unsatisfactory, remove equipment and accept

no payment for an unsatisfactory inspection.

(5) Inspection Camera Locating Device: Provide pipe inspection

cameras with a locating device to locate the sewer. Mark

location of the sewer aboveground with a green paint as

directed by the OWNER.

(6) Pipe Inspection Camera Transporters: Provide pipe inspection

cameras with transporters that position the pipe inspection

camera near the horizontal and vertical centerline of the

pipeline. Use power transporters that are driven by tracks or

wheels. Provide both track and wheel power transporters

during Work. Manual winches, power winches, TV cable and

powered rewinds, or other devices that do not obstruct the

camera view or interfere with proper documentation of the

sewer conditions may be used to move the camera through the

sewer line. Provide operator remote capability to “steer”

camera so as to navigate the piping in the center. Floating the

camera is not acceptable unless approved by the OWNER.

When floating, outrigger must keep device in center of piping

even around bends.

(7) Pipe Inspection Camera Lighting: Provide a lighting system

that allows the features and condition of the pipe to be clearly


seen regardless of pipe size. A reflector in front of the camera

may be required to enhance lighting in dark or large diameter

pipes. Avoid excessive lighting in the pipes which may result in

exaggeration of the defects and pipe conditions. Equip the

camera utilized for CCTV with remote control devices to adjust

the light intensity.

c. CCTV Inspection Acquisition Software: Select and use CCTV

inspection acquisition software capable of generating printed reports

to submit to the OWNER on hard copy and on digital media.

(1) Use CCTV inspection acquisition software that is NASSCO

Pipeline Assessment and Certification Program© certified and

compatible with the code’s latest release.

(2) If required for viewing inspection reports on digital media,

provide the OWNER with viewing programs that are Microsoft

PC compatible.

(3) Acquisition software must be compatible with the City’s

current version of Arc GIS Desktop. The CONTRACTOR shall

coordinate with the City’s GIS department for GIS software

requirements.

1.5 SUBMITTALS

A. General: Provide all submittals, including the following, as specified in Division

1.

B. Submit the equipment manufacturer's operational manual and guidelines to the

OWNER for review. Strictly follow such instructions unless modified by the

OWNER.

C. Submit three sample inspection reports including videos and photos on a USB

flash drive from recent inspection projects of a similar nature. Submit the sample

inspection reports on digital media and provide hard copies.

D. Submit inspection reports and videos on USB flash drive to the OWNER for

review. Provide videos, photos and inspection reports compiled on external hard

drive(s) bi-weekly, if requested by the OWNER.

1. Provide inspection videos of a quality sufficient for the OWNER to evaluate

the condition of the sewer, locate the service connections, and verify

cleaning. If quality is not sufficient, CONTRACTOR shall re-inspect the

pipeline segment and provide inspection reports and videos on USB flash

drives at no additional cost to the OWNER. Camera distortions, inadequate


lighting, dirty lens, or blurred/hazy picture will be cause for rejection of

videos and rejection of the associated line segment.

a. Submit one of the initial inspection videos to OWNER/ENGINEER

for review of video quality before inspections are completed.

OWNER/ENGINEER acceptance of initial video quality does not

prevent future rejection of any of the remaining videos.

b. OWNER or designee reserves the right to halt inspection during any

visit should picture quality be compromised and operator can not

correct.

2. Submit pipe inspections on an external hard drive(s) at end of project if

requested by the OWNER.

3. USB flash drives and external hard drive(s) submitted become the property

of the OWNER.

4. Maintain a master copy of all inspection reports, photos and videos

submitted until final acceptance of contract and through warranty period.


A. Experience Requirements:

1. Verify that the CONTRACTOR has a minimum of 5 years of experience of

CCTV inspection of similar sized infrastructure.

2. The Contractor shall maintain on site at all times a competent field

supervisor in charge of the inspection. The field supervisor shall be

responsible for the safety of all site personnel and site conditions as well as

ensuring that all work is conducted in conformance with the specifications

and to the level of quality specified

PART 2 PRODUCTS

NOT USED

PART 3 EXECUTION

3.1 PREPARATION

A. Cleaning: Clean pipelines prior to CCTV inspections. Provide cleaning in

accordance with Section 02760 – Cleaning of Sewers.


B. Notification: Notify the OWNER at least 24 hours in advance of any CCTV

inspection so that the OWNER may observe inspection operations.

3.2 CCTV INSPECTION OF PIPELINES

A. The specifications call attention to certain features but do not purport to cover all

details entering into the required work.

B. General: Perform CCTV inspection on one sewer section (i.e. manhole to

manhole) at a time.

C. Survey CCTV Inspection: Perform survey CCTV inspection immediately after

pipeline cleaning, unless specifically allowed by the OWNER. Do not allow

inspection camera to immediately follow behind the cleaning mechanism, but

rather follow once at a minimum distance of 8-feet from nozzle. Verify the

pipeline is clean, verify or measure the pipe sizes, determine existing condition of

the pipeline and locate service connections.

D. Flow Control: Adequately control the flow in the pipeline being CCTV inspected.

Do not exceed the depth of wastewater flow shown below:

Pipe Diameter

(Inches)

Depth of Flow

(Percent of Pipe Diameter)

6 – 10 10

12 – 24 15

Over 24 20

1. If during CCTV inspection of a sewer section, the wastewater flow depth

exceeds the maximum allowable, reduce the flow depth to an acceptable

level by performing the survey CCTV inspection during minimum flow

hours, by diversion pumping or by pulling a camera with swab, high-

velocity jet nozzle or other acceptable dewatering device. If pulling with a

jet nozzle, the camera must be a minimum of 8-feet from the nozzle. Divert

the flow in accordance with Section 02150 – Bypass Pumping.

2. No flow is allowed in the pipeline while performing post-installation CCTV

inspection. Divert the flow in accordance with Section 02150 – Bypass

Pumping.

E. Pipeline Inspection Camera: Move the pipe inspection camera through the pipeline

in the downstream direction at a uniform rate, stopping when necessary to ensure

proper documentation of the sewer's condition and service connections, but do not

pull the pipe inspection camera at a speed greater than 30 feet per minute or 9

meters per minute. Position camera for inspection at the center point of the

diameter or as nearest the center of non-circular piping.


F. Pipeline Conditions: Inspect pipelines by use of the pan-and-tilt feature of the pipe

inspection to determine the condition of the pipeline. Document the conditions,

defects and observations of pipelines using NASSCO’s Pipeline Assessment and

Certification Program© codes.

G. Locating Point Repairs Necessary to Complete Inspection: If point repair is needed

in order for the continuous inspection to be completed from manhole to manhole

due to impassibility or sewer collapse, make a special note in the documentation

and inspection report as outlined in Section 3.3 below.

H. Inspection of Service Connections during Mainline Inspection: Inspect service

connections by use of the pan-and-tilt feature of the pipe inspection camera.

Include the connection to the sewer main and lamping inspection up the service

pipe, recording all defects found in the service connection as the focus of the

inspection. Observe flows from service connections for approximately two

minutes to ascertain if the flow is sanitary or extraneous flow. The video recording

may be paused during observation. Record the results of the flow observation.

I. Inspection of Laterals and Side Sewers: Inspect lateral and side sewer connections

with a lateral launch camera that can be conveyed through the lateral from the

mainline. The limit of inspection of service lateral shall be televised and inspected

from mainline sewer to property line.

J. Inspection of Infiltration: Quantify visible leakage of extraneous flow into the

sewer by the operator and recorded on electronic log and audio.

K. Communication: Whenever non-remote powered and controlled winches are used

to pull the television camera through the line, set up telephones, radios, or other

suitable means of communication between the operators positioned at the two

manholes of the sewer line being inspected to ensure that good communications

exist between members of the crew.

L. Visual Recording of CCTV Inspection: Make CCTV inspections continuous for

pipe segments between manholes. Do not leave gaps in the visual recording of a

sewer segment and do not show a single segment on more than one visual

recording, unless specifically allowed by the OWNER.

M. Passage of Inspection Camera: If during CCTV inspection of a pipeline, the

camera is unable to pass an obstruction even though flow is unobstructed, inspect

the pipeline from the other direction (reverse setup) in order to obtain a complete

inspection of the pipeline. Whenever such a condition arises, notify the OWNER

to determine if an obstruction removal or point repair is necessary. When the

CONTRACTOR encounters a protruding tap that prevents the passage of the

camera, grind the protruding tap as specified in Section 02760 – Cleaning of

Sewers unless otherwise directed by the OWNER. After the protruding tap is

removed, complete the CCTV inspection of the pipeline.


1. When the camera is moving from the other direction in order to survey on

either side of an obstruction and a second repair location is encountered

away from the first obstruction, notify the OWNER and request a review of

the CCTV video.

N. CCTV Inspection Quality: Reject CCTV inspections that have camera distortions,

inadequate lighting, dirty lens, excessive lighting or blurred/hazy picture of the

associated line segment. Re-televise any CCTV inspection deemed unacceptable

by the OWNER at no additional cost to the OWNER. Payment for televised

inspection will not be made until OWNER approves the quality of the inspection

report and video.

3.3 DOCUMENTATION AND INSPECTION REPORT

A. Inspection Report: For each CCTV inspection, provide a completely printed

inspection report generated by the CCTV inspection acquisition software that

clearly identifies the location of defects and observations indexed in relation to

adjacent manholes. Record the direction of the pipe at the starting manhole.

Record defects and observations that shall be recorded include structural

deficiencies, the locations and estimations of extraneous flows of service

connections, joints, infiltration, unusual conditions, material transitions, roots,

storm sewer connections and cracked or collapsed sections, the presence of scale

and corrosion, signs of previous leakage, sewer line sections that the camera failed

to pass through and reasons for the failure and other discernible features and data

of significance. Document defects and observations in inspection reports, and

supply a copy of such records to the OWNER.

1. Hard Copy: Provide three (3) hard copies of the inspection report to the

OWNER.

2. Digital Media: Provide the inspection report to the OWNER on digital

media that is Microsoft PC compatible. Provide computer files in standard

format. Contact the OWNER for format requirements.

3. Defect and Observation Codes: Document defects and observations utilizing

the latest release of NASSCO’s Pipeline Assessment and Certification

Program© codes. Provide a table listing acronyms and their meaning with

the logs.

4. JPEG Images: Each inspection report shall provide JPEG images of defects

greater than NASSCO PACP codification grade 3 and observations,

including looking up all service laterals, surveyed during CCTV inspections

in the inspection report. Link JPEG images to inspection report for viewing

and printing when reviewing inspection reports on digital media.


5. MPEG Video: Provide a link to the MPEG video for each defect and

observation surveyed during the pipeline inspection. Videos must play via

standard MPEG-ready software, requiring no proprietary software.

6. Pipeline Condition Rating: Provide a pipeline condition rating in each

inspection report. Use NASSCO’s Pipeline Assessment and Certification

Program©, Condition Grading System to determine the pipeline condition

rating.

7. Inspection Report Format: Provide each inspection report with the

following:

a. CCTV Inspection Form: Provide each inspection report with a CCTV

Inspection Form. Use a CCTV Inspection Form that is of a layout

and format in accordance with NASSCO’s Pipeline Assessment and

Certification Program©, CCTV Inspection Form. Other layouts and

formats equivalent to NASSCO may be submitted, upon approval by

the OWNER.

b. CCTV Inspection Graphic Form: Provide each inspection report with

a CCTV Inspection Graphic Form. Include the following in the

CCTV Inspection Graphic Form:

(1) A pipeline illustration showing the pipe and the upstream and

downstream manholes. Show the location of the each defect

and observation in the pipeline illustration.

(2) A record of each defect and observation from the starting

manhole during the inspection. Include the distance from the

starting manhole, NASSCO’s Pipeline Assessment and

Certification Program© codes, and identify the JPEG image for

each defect and observation.

(3) Direction of flow and direction of camera movement.

c. CCTV Inspection Image Form: Provide each inspection report with a

CCTV Inspection Image Form. Show a record of each defect and

observation during the inspection with JPEG images displayed with


d. Pipeline Condition Rating Form: Provide each inspection report with

a Pipeline Condition Rating Form. Include the following in the

Pipeline Condition Rating Form:

(1) List the number of structural defects and the number of

operation and maintenance defects per condition grade,

(Condition Grades 1 through 5).


(2) List the Structural Pipe Rating, Operations and Maintenance

Pipe Rating, Overall Pipe Rating and Pipe Rating Index.

B. Digital Video/Audio Recording: Provide each inspection report with video of the

inspection on USB flash drive.

1. Include both audio and video information that accurately reproduces the

original picture and sound of the CCTV inspection. Provide the video

portion of the digital recording that is free of electrical interference and

produces a clear and stable image. Provide the audio portion that is

sufficiently free of background and electrical noise as to produce an oral

report that is clear and discernible.

2. Include in the digital recording a visual and audio narrative noting:

a. Date, time of day, and depth of flow;

b. Sewer segment number as provided by OWNER;

c. Upstream manhole number;

d. Downstream manhole number;

e. Type of sewer (e.g. sanitary, storm, combined);

f. Size of sewer;

g. Sewer materials of construction;

h. Closest street address and street name on which sewer is located;

i. Direction of movement of camera, heading, and direction of flow;

j. Reason for inspection.

3. Create separate MPEG video files for each pipe segment inspected. If a

reverse setup is required, store the individual portions of that pipe segment

in separate MPEG video files.

4. Provide a USB flash drive for each pipe segment inspected. A maximum of

five (5) pipe segment inspections may be included on the same flash drive as

long as they are contiguous. Provide flash drives that are readable.

Unreadable/corrupted flash drives will be returned and new ones provided at

no cost to the OWNER. Compile pipe inspections onto an external hard

drive(s) at end of project and provide to the OWNER if requested by the

OWNER.

5. Continuously display the manhole reach (i.e., manhole to manhole), date,

time and length (in feet and tenth of feet) from starting manhole on the

MPEG video. Place information on screen where it is clearly visible but

does not interfere with video image.

6. Perform the pipeline inspection that consists of identifying a location both

within the pipe segment (physical location) and within the digital recording

(video frame location) for each defect or observation. Do not use time codes


for defect location. This will allow the digital recording and inspection data

to be cross-referenced for instant access to any point of interest within the

digital recording.

7. File Naming Convention: Pipeline inspection report and video files shall be

named in the following convention separated with an underscore to assign a

standardized identification number for each inspection.

a. First Four Letters of Street Name

b. Date of the Inspection (yyyymmdd)

c. Address (with no punctuation)

d. Assignment or Work Order (WO) Number

e. Line Segment (LS) Number

f. Upstream MH ID/Top Elevation

g. Downstream MH ID/Top Elevation

h. Pipe Diameter (inches)

i. CCTV Footage (ft)

j. Basin Number

k. Council District Number

If the street name is a number, use street number without direction (N,S,E,W);

for example: 04th. The address could be a block number or specific house

number for a lateral inspection. If the line segment is located in an alley

running parallel between two streets (with adjacent houses being odd

numbers); for example: 1200 Warren Ave (odd alley).

File naming example: 1st 4 Letters of St. Name (Warr)_Date (20180914)_Address

(1200 blk Warren Ave)_WO No. (92657)_LS No. (1 of 4)_U/S MH Top EL

(196.90)_D/S MH Top EL (198.05)_Pipe Diameter (8)_CCTV Footage

(228.1)_Basin No. (NS-01)_Council District No. (3).

“Warr_20180914_1200 blk Warren Ave_92657_1 of 4_196.9_198.05_8_228.1_NS-

01_3”.

8. USB Flash Drive and External Hard Drive Label: Place a tag with a typed

label on the USB flash drive. For external hard drive, attach a typed label on

the face of the hard drive. The label shall include the following information:

a. Assignment or Work Order Number

b. CONTRACTOR’S Name

c. Inspection Type: Survey, Pre-Installation, Post-Installation

d. Date of the Inspection

e. Date Submitted

f. Basin Number

g. Street Name

h. Pipe Diameter

i. Pipe Length


j. Street Name

k. Pipe Condition Rating as Established by the OWNER

3.4 CCTV INSPECTION OF MANHOLES DURING PIPELINE CCTV

A. Manhole Inspection: Record panning the beginning and ending manholes of a

sewer segment to demonstrate that all debris has been removed and to view the

condition of the invert, bench, and sidewalls of the manholes including pipe

connections in the manhole. Record pipe connections starting from outgoing or

effluent pipe and move clockwise to cover all the pipes in the manhole. This

information is a supplement to the requirements in Section 02652- Sewer Manhole

Inspection.

B. Raising Buried Manholes: If, in the progress of the Work, it is found that some

manhole covers are buried beneath the pavement, notify the OWNER. If the

OWNER determines that access through the manholes is vital to the Work, expose

the cover and reset the frame so that the cover is flush with the pavement. Restore

the pavement surrounding the manhole to match the existing pavement. Perform

pavement restoration in accordance with Section 02513 – Restoration of Pavement.

Replace manhole frame and cover if required. Such work will be reimbursed by

the Contract Items 45, 46 and 47 for manhole frame and cover replacement and

manhole risers, respectively.

3.5 MANHOLE FRAME AND COVER REPLACEMENT

A. Installation:

1. Remove cover and existing paving adjustment rings and clear manhole

frame rim of any loose material and debris.

2. Excavate existing pavement or unpaved area to expose existing frame and

top of manhole chimney.

3. Remove existing frame and any loose material and debris from top of

manhole chimney.

4. In paved areas, combine precast concrete adjustment rings so that the top of

the installed casting shall match finished grade.

5. In unpaved and grassy areas, combine precast concrete adjustment rings so

that the top of the installed casting extends at least 6 inch above finish grade.

Gradually slope the surface up to top of casting and surface graded to

provide positive drainage away from manhole.

6. Apply an approved sealant between the top adjustment ring and the manhole

frame. Apply no less than two beads ½-inch wide and ¾-inch high. Apply

an approved manhole cementitious lining material between the rings and no


less than 1 inch of lining material to the inside and outside face of the

adjustment rings.

7. Replace manhole cover over manhole frame rim.

END OF SECTION


SECTION 02652

SEWER MANHOLE INSPECTION

PART 1 GENERAL

1.1 SUMMARY

A. Section Includes: Above-ground inspection, evaluation, and condition assessment

of sewer manholes. It also includes work necessary to make manholes easy to

locate and access. Work may include raising paved over or buried manholes and

replacing manhole frames and covers for inspection.

B. Related Work Specified in Other Sections Include, But is Not Limited to, the

Following:



3. Section 02653 - Sewer Smoke Testing

4. Section 02654 - Sewer Dyed-Water Testing


1.2 REFERENCE


1. National Association of Sewer Service Companies (NASSCO) Manhole


2. NASSCO Manual of Practice, Latest Edition.


4. ASCE Manhole Inspection & Rehabilitation Manual of Practice No. 92, 1997.

1.3 DEFINITIONS

A. Manhole Inspection: It is the intent of this specification to provide above-ground

manhole inspections, CONTRACTOR may enter manhole if necessary to field

verify any conditions or finding(s), if deemed necessary. Manhole inspection

includes data collection using a telescoping video camera or LIDAR/laser scanner,

still photos or laser scans of critical defects, and condition assessment evaluation

and report. Above-ground inspections must also provide for inspection of

connecting sewer main pipes for critical defects.


1.4 PERFORMANCE REQUIREMENTS

1. Sewer manhole inspection shall be performed by personnel trained and

certified in the use of NASSCO’s Manhole Assessment and Certification

Program© (MACP). Contractor shall submit PACP/MACP training

certificates of all personnel doing the work, to the OWNER

2. CONTRACT work requires work in active sewer manholes. Follow all

federal, state, and local requirements for safety in confined spaces. Conform

to all guidelines set forth by VOSH Compliance Program. CONTRACTOR is

solely responsible for safety during the performance of all work.

3. CONTRACTOR is responsible for any damage to public or private property

resulting from sewer manhole inspection activities and shall repair or

otherwise make whole such damage at no cost to the OWNER.

4. Provide all necessary equipment.

1.5 SUBMITTALS

A. General: Provide all submittals, including the following, as specified in

Division 1.

B. Submit sample inspection forms, photographs, video, and laser scanned point

clouds from three recent manhole inspection projects of a similar nature.

C. Submit the equipment manufacturer’s operational manual and guidelines to the


OWNER.

D. Submit inspection forms and digital videos on USB flash drives to the OWNER

for review. Contractor shall provide videos, laser scan data, photos and inspection

reports on external hard drive(s) if requested by the OWNER.

1. Provide inspection data on flash drives and hard drive(s) of a quality sufficient

for the OWNER to evaluate the condition of the manhole and locate the

service connections. If quality is not sufficient, CONTRACTOR shall re-

inspect the manhole and provide inspection reports and videos at no additional

cost to the OWNER. Camera distortions, inadequate lighting, dirty lens, or

blurred/hazy picture will be cause for rejection of videos and rejection of the

associated manhole inspection.

a. CONTRACTOR to submit the initial inspection report and video to the

OWNER for review of data quality before all inspections are completed.

OWNER acceptance of initial report and data does not prevent future

rejection of any of the remaining inspections.


2. USB falsh drives and hard drive(s) submitted become the property of the

OWNER.

E. Maintain a master copy of all inspection reports, and videos submitted until final

acceptance of the contract and through warranty period.


A. Perform work in accordance with the best practice of the industry. The

specifications call attention to the features but do not purport to cover all details

entering into the required work.

B. Experience Requirements:

1. A minimum of 3 years of experience in manhole inspection using telescoping

camera equipment and LIDAR technology is required. Furnish documentation

of experience to OWNER upon request.

C. Maintain on site at all times a competent field supervisor in charge of the

inspection. The field supervisor shall be approved in writing by the ENGINEER

prior to commencement of work. Any change in supervision must also be

approved in writing by the ENGINEER prior to the change.

1.7 PROJECT CONDITIONS

A. Manholes Containing Mechanical or Electrical Equipment:

1. Drawings may not show locations of flow monitoring equipment. If a

manhole contains any mechanical hardware or electrical flow monitoring

equipment, do not proceed with the scheduled work and notify the OWNER.

2. Reschedule work in such manholes until equipment has been removed by the

OWNER and further instructions are given.

3. Do not bypass manholes with mechanical hardware or electrical equipment

unless approved by the OWNER.

4. Damage to installed equipment, due to CONTRACTOR’s failure to adhere to

the above, will be repaired by the OWNER at the CONTRACTOR’s expense.

B. Field Location of Manholes, Cleanouts and End of Lines:

1. Be responsible for locating and uncovering all manholes, cleanouts and end of

lines. If CONTRACTOR is unable to locate manhole, cleanout or end of line,

notify OWNER in writing. Raise manhole frames if required.

2. Confirm the manhole number and location before starting work.


1.8 SALVAGE

A. Manhole covers and frames, from abandoned manholes remain the property of the

OWNER. Deliver salvaged items to locations designated by OWNER.

PART 2 PRODUCTS

A. Inspection Devices

1. Camera

a. Camera shall have both video and photograph capabilities.

b. Camera shall digital and capable of producing photographs with a

minimum resolution of 5.0 megapixels and shall be equipped with a

flash.

c. Camera shall be capable of zooming 12X for digital viewing.

d. Camera shall be able to be connected to a telescoping lowering mast for

360 degree above-ground manhole inspection.

e. Camera shall be capable of being operated remotely from an inspection

unit.

f. Adequate camera lighting shall be provided.

g. Video inspection data acquisition software: Select and use inspection

acquisition software capable of generating printed reports to submit to

the OWNER on hard copy and on digital media.

(1) Use inspection acquisition software that is NASSCO Manhole

Assessment and Certification Program© certified.

(2) Acquisition software must be compatible with City GIS

database.

2. Laser Scanner

a. Laser Scanner shall be capable of producing a 360-degree 3-

Dimensional scan of the entire manhole. The laser scanner shall also take

pictures of the manhole being scanned such that the 3-Dimensional data

and pictures can be composited and viewed together on a computer using

the Trimble RealWorks Viewer.


b. Laser Scanner shall be capable of sampling at least 100,000 points per

second.

c. Laser Scanner shall use a Class 1 “eye safe” laser or similar laser that

does not constitute a health risk to those exposed to the laser.

d. Laser Scanner shall have a range of at least 0.6 to 300 meters.

e. The ranging error at 10 meters must be within 3mm.

f. Laser Scanner shall have been inspected and calibrated by the equipment

manufacturer within the last 12 months. Evidence of this calibration and

appropriate functioning of the Laser Scanner must be made available to

the engineer upon request.

3. LIDAR Scanner

a. LIDAR Scanner shall be capable of producing a 360-degree 3-

Dimensional scan of the entire manhole. The LIDAR scanner shall also

take pictures of the manhole being scanned such that the 3-Dimensional

data and pictures can be composited and viewed together on a computer

using the Trimble RealWorks Viewer software.

b. LIDAR Scanner shall have a range of at least 2 to 1000 feet for 90%

Reflectivity (white) and 2 to 160 feet for 2% Reflectivity (black).

c. LIDAR Scanner shall have a measurement speed up to 976,000 points

per second.

d. LIDAR Scanner shall have an integrated color unit with a resolution up

to 165 megapixel.

e. The laser optical transmitter shall be Laser Class1 with a wavelength of

1550 nm.

f. LIDAR Scanner shall have an integrated sensor with dual axis

compensator which is capable of performing a leveling of each scan with

an accuracy of 19 arcsec valid within ±2 degree.

g. LIDAR Scanner shall have a height sensor to detect the height relative to

a fixed point via an electronic barometer and add to a scan.

h. LIDAR Scanner shall have electronic compass to give the scan an

orientation.

i. LIDAR Scanner shall have integrated GPS and GLONASS.


B. When using survey rods or tape measures for linear measurements, the

measurements shall be accurate to one inch.

C. Manhole Frames and Covers

a. Acceptable manufacturers for manhole metal frames and covers are

listed below. Other manufacturers of equivalent products may be

submitted.

(1) Neenah Foundry

PART 3 EXECUTION

3.1 PREPARATION

A. Notification: Notify the OWNER at least 24 hours in advance of any manhole

inspection so that the OWNER may observe the inspection operations if so

desired.

3.2 TRAFFIC CONTROL

A. Provide barricades, flaggers, and other traffic control devices as necessary in work

areas and around open manholes. Maintain traffic at all times with minimal

disruption to residents and businesses.

3.3 FLOW CONTROL:

A. Adequately control flow in the manhole being inspected. The depth of flow in the

manhole should not exceed the height of the bench. If during inspection, the

wastewater flow depth exceeds the allowable amount, reduce the flow depth to an

acceptable level by performing the inspection during minimum flow hours, by

diversion pumping, or by some other dewatering device. Divert flow in

accordance with Section 02150 – Bypass Pumping. Should a surcharge condition

be discovered, notify the OWNER immediately.

3.4 MANHOLE CLEANING

A. Sewer manhole shall be cleaned only if necessary to provided unobstructed views

of bench, channel, connecting sewers, and any other manhole component.

Disposal of material removed during cleaning shall conform to the disposal

requirements specified in Section 02760 – Cleaning of Sewers


3.5 SEWER MANHOLE INSPECTION

A. Inspection of Manhole Structure: Inspect and document the location, type of

material, conditions, defects, and observations of manholes using the Manhole

Inspection Form, located in EXHIBIT C of this CONTRACT or an equivalent

MACP compliant MH Inspection form approved by the OWNER.

B. Manhole Condition Ratings: Each Manhole Inspection Form shall provide

condition ratings for each sewer manhole component (cover, frame, chimney,

cone, wall, bench, channel etc). Use the condition rating system next to the each

manhole component on the Manhole Inspection Form, located in Exhibit C of this

CONTRACT or an equivalent MACP condition rating system to assign and record

condition ratings.

C. Infiltration and Inflow (I/I): Each Manhole Inspection Form shall provide I/I

ratings for each sewer manhole component. Use the rating system on Page 2

under Evidence of Leakage section of the Manhole Inspection Form, located in

Exhibit C of this Contract or an equivalent MACP rating system to assign and

record I/I ratings.

D. Roots: Each Manhole Inspection Form shall provide information on type of roots

for each sewer manhole component. Use the rating system on Page 2 under

Evidence of Roots section of the Manhole Inspection Form, located in Exhibit C

of this Contract, to assign and record type of roots.

E. Inspection of Service Connections: Service connections shall be inspected by use

of the inspection camera. Focus of inspection shall include the connection of the

sewer main and lamping inspection up sewer pipe, recording all defects found in

the service connection. Flows from the service connections shall be observed for

approximately two minutes to ascertain if the flow is sanitary or extraneous flow.

The video recording may be paused during observation. Results of the pipe

investigation and flow observation shall be recorded on Page 2 of the Manhole

Inspection Form located in EXHIBIT C of this CONTRACT. Each service

connection shall be photographed using the zooming capability of the digital

camera for approximately 40 linear feet of sewer pipe. Take enough photographs

to cover the entire circumference of the pipe.

F. LIDAR/Laser Scanner Manhole Inspection

1. Each manhole shall be inspected with at least 4 sets of 360-degree scans, taken

throughout the height of the manhole. The first scan must show the top of the

manhole and the surrounding area above grade as well as the upper portion of

the manhole. This scan may include marks or other details that allow the 3D

point cloud data to be oriented correctly.


2. Additional 360-degree scans must be taken at each elevation where there is an

influent pipe. These scans must allow the dimensions and interior condition of

each influent pipe to be determined.

3. These laser scans must be taken in such a way that all of the 3D point cloud

data can be stitched together, resulting in a single file of 3D data that shows

the entire structure as well as the the influent and effluent pipes.

G. LIDAR Scanner Limitations: The LIDAR scanner limitations for manhole

inspection are as follows:

1. Manhole depth - not greater than 50 feet

2. Flow in manhole - cannot have any running water coming from above the

scanner from a lateral or pipe that could fall onto scanner

3. Severe offset in manhole

4. Surcharged manhole

H. Raising Buried Manholes: If, in the progress of the Work, it is found that some

manhole covers are buried beneath the pavement, notify the OWNER. If the

OWNER determines that access through the manholes is vital to the Work, expose

the cover and reset the frame so that the cover is flush with the pavement. Restore

the pavement surrounding the manhole to match the existing pavement. Perform

pavement restoration in accordance with Section 02513 – Restoration of

Pavement. Replace manhole frame and cover if required. Such work will be

reimbursed by the Contract Items 45, 46 and 47 for manhole frame and cover

replacement and manhole risers, respectively.

3.6 MANHOLE FRAME AND COVER REPLACEMENT

A. Installation:

1. Remove cover and existing paving adjustment rings and clear manhole

frame rim of any loose material and debris.

2. Excavate existing pavement or unpaved area to expose existing frame and

top of manhole chimney.

3. Remove existing frame and any loose material and debris from top of

manhole chimney.

4. In paved areas, combine precast concrete adjustment rings so that the top of

the installed casting shall match finished grade.

5. In unpaved and grassy areas, combine precast concrete adjustment rings so

that the top of the installed casting extends at least 6 inch above finish grade.

Gradually slope the surface up to top of casting and surface graded to

provide positive drainage away from manhole.


6. Apply an approved sealant between the top adjustment ring and the manhole

frame. Apply no less than two beads ½-inch wide and ¾-inch high. Apply

an approved manhole cementitious lining material between the rings and no

less than 1 inch of lining material to the inside and outside face of the

adjustment rings.

7. Replace manhole cover over manhole frame rim.


A. For each sewer manhole inspection, provide:

1. The completed Manhole Inspection Form, Page 1 and Page 2, located in

EXHIBIT C of this CONTRACT or a completed equivalent form that was

previously approved by the OWNER. Provide a hard copy and a Microsoft

PC digital copy.

2. A Video Inspection Report generated by the video inspection acquisition

software that clearly identifies the location of defects and observations

indexed on the Manhole Inspection Form, located in EXHIBIT C of this

CONTRACT. Contact the OWNER for format requirements

3. Either the Video Inspection Data or the LIDRA/Laser Scanner Data,

depending on the type of inspection conducted.

4. Video Inspection Data

a. MPEG Video: Each Video Inspection Report shall provide a link to the

MPEG video for each defect and observation surveyed during the

pipeline inspection. Videos must play via standard MPEG-ready

software, requiring no proprietary software.

(1) The digital recording shall be free of electrical interference and

shall produce a clear and stable image.

(2) The digital recording shall include a visual noting:

(a) Date and time of day;

(b) Manhole number. Manhole numbers shall be designated

by OWNER.

b. USB flash drives must be readable. Unreadable/corrupted flash drives

will be returned and new ones provided at no cost to the OWNER.

Compile sewer manhole inspections onto an external hard drive(s) at end

of project and provide to the OWNER if requested by the OWNER.


c. USB Flash Drive and External Hard Drive Label: Place a tag with a

typed label on the USB flash drive. For external hard drive, attach a

typed label on the face of the hard drive. The label shall include the

following information:

(1) Assignment Number

(2) Contractor’s Name

(3) Inspection Type: Survey, Pre-Installation, Post-Installation

(4) Inspection Date(s)

(5) Date Submitted

(6) Basin Number

(7) Street Name

(8) Inspected Manhole Numbers

d. JPEG Images: Each inspection report shall provide JPEG images of

defects and observations surveyed during video inspections. JPEG

images shall be linked to Video Inspection Report for viewing and

printing. JPEG images shall be referenced on the Manhole Inspection

Form located in EXHIBIT C of this CONTRACT.

5. LIDAR/Laser Scanner Data

a. LIDAR/Laser Scanner 3D Data and Photographs: Provide combined 3D

and photogrammetric data that has been cleaned and edited and is ready

for Engineer’s review. Data shall be provided in a format compatible

with “Trimble RealWorks Viewer” software.

(1) The data shall be free of extraneous noise and shall produce a

clear and stable image. The data shall be a single, complete, 3D

point cloud that shows the entire structure.

(2) Do not provide raw data that has not been reviewed and edited

for correctness.

(3) The data shall include appropriately placed dimensions that

identify the size of the structure and all influent and effluent

pipes.

(4) The 3D point cloud layers and features shall be named

appropriately with the correct manhole, pipe, or feature name.

b. USB flash drives must be readable. Unreadable/corrupted flash drives

will be returned and new ones provided at no cost to the OWNER.

Compile sewer manhole inspections onto an external hard drive(s) at end

of project and provide to the OWNER if requested by the OWNER.


c. USB Flash Drive and External Hard Drive Label: Place a tag with a

typed label on the USB flash drive. For external hard drive, attach a

typed label on the face of the hard drive. The label shall include the

following information:

(1) Assignment Number

(2) Contractor’s Name

(3) Inspection Type: Survey, Pre-Installation, Post-Installation

(4) Inspection Date(s)

(5) Date Submitted

(6) Basin Number

(7) Street Name

(8) Inspected Manhole Numbers

d. Figures and Images: Each inspection report shall provide JPEG or PDF

images of defects and observations surveyed during inspections. Images

shall be referenced on the Manhole Inspection Form located in EXHIBIT

C of this CONTRACT. Other images or figures that must be included

are:

(1) A figure that schematically shows, in plan-view, all influent

and effluent pipes for the manhole. Label pipes, pipe diameters

if possible, and provide a north arrow for orientation.

(2) A plan-view image showing the manhole from grade to the

bottom of the structure comprised of the composited 3D scan

information.

(3) Images showing cross sections of the structure. Create a cross

section looking downstream of each pipe that enters or exits the

manhole. These images should be labeled with pipe names,

pipe dimensions, manhole structure dimensions, and elevations.

END OF SECTION


SECTION 02653

SEWER SMOKE TESTING

PART 1 GENERAL

1.1 SUMMARY

A. Section Includes: Requirements for providing sewer smoke testing services to

determine sources of inflow in the sewer. Results are used to determine where

further inspection, such as dyed-water testing, manhole inspection, and CCTV

inspection, may be required and to assist in determining and prioritizing

rehabilitation needs.


Following:



3. Section 02652 - Manhole Inspection

4. Section 02654 - Sewer Dyed-Water Testing

1.2 REFERENCE


1. National Association of Sewer Service Companies (NASSCO) Manhole


2. NASSCO Inspector’s Handbook, Latest Edition.


1.3 DEFINITIONS

A. Smoke Testing: Smoke testing is the process of using low pressure smoke in

sewer systems to locate sources of rain-fall and snow-melt dependent inflow into

the sewer.

B. Sources of Inflow: Sources of inflow may include downspouts, sump pumps,

clean-outs, yard drains, stairwell, driveway, and foundation drains, catch basins,

and interconnections between storm and sanitary sewers. In some cases, broken

piping and covered manhole lids or clean-out caps may be encountered.

C. Finding: A finding is a source of inflow that has been found during smoke testing.


1.4 PERFORMANCE REQUIREMENTS:

A. Contract work requires work in active sewer manholes. Follow all federal, state,

and local requirements for safety in confined spaces. Conform to all guidelines set

forth by VOSH Compliance Program. The contractor is solely responsible for

safety during the performance of all work

B. The CONTRACTOR is responsible for any damage to public or private property

resulting from sewer smoke testing activities and shall repair or otherwise make

whole such damage at no cost to the OWNER.

C. Provide all necessary equipment.

1.5 SUBMITTALS


1.

B. Submit sample inspection reports from three recent smoke testing projects of a

similar nature to the OWNER, prior to commencement of the work.

C. Submit the initial testing report with photographs to the OWNER for review of

quality before all testing is completed. OWNER acceptance of initial report and

photographs quality does not prevent future rejection of any of the remaining tests.

D. Maintain a master copy of all testing reports and photographs submitted until final



A. Perform in accordance with the best practice of the industry. The specifications

call attention to the features but not purport to cover all details entering into the

required work.


1. A minimum of 3 years of experience with smoke testing sewers is required.

Furnish documentation of experience to OWNER upon request.

C. Maintain on site at all times a competent field supervisor in charge of the testing.

The field supervisor shall be approved in writing by the ENGINEER prior to

commencement of work. Any change in supervision must also be approved in

writing by the ENGINEER prior to the change.


PART 2 PRODUCTS

2.1 SMOKE SOURCE

A. Smoke source may be smoke candles or liquid smoke capable of producing not

less than 25,000 cubic feet of smoke in three minutes. Duration of recommended

smoke candles is typically 3 to 5 minutes.

B. Smoke must be non-toxic, non-explosive, odorless, and non-staining.

C. Smoke may be added to a manhole after the test has begun if it is determined that

additional smoke is needed.

2.2 SMOKE BLOWER

A. Smoke blower shall have a capacity of at least 1700 cfm.

B. Smoke blower should be fitted over manhole with a gasket device to maximize the

amount of smoke entering the sewer.

PART 3 EXECUTION

3.1 COORDINATION AND NOTIFICATION

A. Coordinate and schedule testing dates, times, and location with fire and police

departments, OWNER and any other affected utilities or agencies within at least 2

weeks in advance of the testing. Notify and advise on a daily and street-to-street

basis during the testing.

B. Notify all property owners who may be affected by the testing within one week of

testing and all property owners who are connected to the test segment, at least 3

days prior to testing.

1. Notification can be achieved via mailings, phone calls, and door hangers.

Please see “Sample Notification Letter” in Exhibit X of this CONTRACT.

2. In the notification letter and reminders, advise property owner(s) to run

water into all household drain traps prior to the testing.

3. Notify property owners(s) that smoke may escape through sewer vents (i.e.

roof vents), dry traps which have not had water placed in them, and

defective house piping.

C. Where access to manholes in easements and rights-of-way is required, the

CONTRACTOR will obtain permission for access for his equipment.


D. Barricades and warning signs shall be used in work areas and around open

manholes. The CONTRACTOR shall furnish and maintain traffic controls and

safety devices as required.

E. If, in the progress of the work, it is found that some manhole covers are buried

beneath the pavement, the OWNER shall be notified. If the OWNER determines

that access through the manholes is vital to the work, the cover shall be exposed

and the frame shall be reset so that the cover is flush with the pavement. The

pavement surrounding the manhole shall be restored to match the existing

pavement. Such work will be reimbursed by the unit bid item for manhole frame

and cover replacement.

3.2 TRAFFIC CONTROL




3.3 PROCEDURES

A. Smoke testing should not be performed when the ground is saturated, frozen, or

snow-packed, or when the pipe is flowing full, or during rainy or windy days.

Smoke testing should be performed at least one week after a precipitation event

unless authorized differently by OWNER.

B. Test one sewer segment at one time, from manhole to manhole. Perform the test

(i.e. locate smoke supply and blower) at the upstream manhole of the pipe segment

being tested.

C. Flow Control: Control flow in sewers as needed to permit the work to be

accomplished, by use of plugs, sandbags, flow restrictor, pump bypasses, or other

means. Divert flow in accordance with Section 21150 – Bypass Pumping.

D. Testing: Smoke shall be supplied at a pressure of not less than 1.0 psi.

E. Digital Photos: Document all potential inflow sources (i.e. smoking sites) with a

digital photograph. Photographs shall be provided in JPEG format.

F. Testing shall be ceased and pipe segment vented at the first indication of smoke

inside any building or residence.

3.4 DOCUMENTATION AND TESTING REPORT

A. Testing report: For each affected property, document and record the following

items on the Smoke Testing Form located in EXHIBIT D of this CONTRACT. An

affected property is where one or more findings are identified.


1. Date and time of testing.

2. Name(s) of personnel/crew performing the testing.

3. Basin identification.

4. Street name and name of nearest intersection, for tested segment(s).

5. Identification of the manhole where testing is began, where the smoke the

bomb is placed.

6. Identification of tested pipe segment(s) in relation to connecting manholes.

7. Approximate length (feet) of sewer being tested.

8. Address of affected property.

9. Findings:

a. Location of findings (smoke leaks and illicit connections). In the case

of downspouts and sump pumps, CONTRACTOR is to provide

name(s) of property owner(s) and exact address of residence or

building.

b. Description of finding(s)

c. Provide type of surface cover and approximate drainage area.

d. Estimated rate of smoke coming out of the source finding (low,

medium, high based on experience).

e. Recommendation on how to remove or more accurately identify the

inflow source.

f. Mark location of finding (leaks and illicit connections) on GIS map of

the collection system. GIS map of collection system to be provided

by OWNER.

g. Number or label findings in format acceptable to OWNER.

10. Provide hard copy and digital copy of completed inspection form to

OWNER. Digital copy is to be Microsoft PC compatible.

11. Attach digital photographs (in JPEG format) of findings to the report.

Provide hard and digital copies of photographs. The hard copy of the


photograph shall be a minimum of 4” by 6”. Label each photograph with

the following items:

a. Date and time of testing.

b. Location of finding – address or name of nearest intersection.

c. Identification of the manhole where testing is began, where the smoke

the bomb is placed.

B. If no properties are affected and no finding(s) are identified during the test, fill out

one Smoke Test Form and fill in items 1-7 below:




4. Street name and name of nearest intersection, for tested segment(s).

5. Identification of the manhole where testing is began, where the smoke the

bomb is placed.

6. Identification of tested pipe segment(s) in relation to connecting manholes.

7. Approximate length (feet) of sewer being tested.

END OF SECTION


SECTION 02654

SEWER DYED-WATER TESTING

PART 1 GENERAL

1.1 SUMMARY

A. Section Includes: Requirements for providing sewer dyed-water testing and

flooded sewer dyed-water testing services to determine sources of infiltration and

inflow into the sewer. Results are used to determine where further inspection,

such as CCTV and/or manhole inspection, may be required and to assist in

determining and prioritizing rehabilitation needs.


Following:


2. Section 02652 - Manhole Inspection

1.2 REFERENCE


1. Water Environment Federation (WEF) Manual of Practice FD-6, 1994.

2. Virginia Occupational Safety and Health (VOSH).

1.3 DEFINITIONS

A. Dyed-Water Testing: Dyed-water testing is used to verify inflow sources. It can

also be used to detect infiltration sources from other crossing pipelines, stream

sections, and ditch sections.

B. Sources of Infiltration and Inflow (I/I): Sources of inflow and infiltration may

include defects in the pipe, pipe joints, manholes, and clean-outs, as well as illicit

connections to the sewer system such as downspouts, sump pumps, yard drains,

stairwell, driveway, and foundation drains, catch basins, interconnections between

storm and sanitary sewer systems, and other unauthorized connections.

C. Finding: A finding is a source of I/I that has been found during dye testing.


1.4 SUBMITTALS


1.

B. Submit sample test reports from three recent dyed-water testing projects of a

similar nature.

C. Submit the initial testing report with photographs to the OWNER for review of

quality before all testing is completed. OWNER acceptance of initial testing report

and photographs quality does not prevent future rejection of any of the remaining

tests.

D. Maintain a master copy of all testing reports and photographs submitted until final


1.5 PERFORMANCE REQUIREMENTS

1. CONTRACT work requires work in active sewer manholes. Follow all

federal, state, and local requirements for safety in confined spaces. Conform

to all guidelines set forth by VOSH Compliance Program. The

CONTRACTOR is solely responsible for safety during the performance of

all work.

2. The CONTRACTOR is responsible for any damage to public or private

property resulting from sewer-dyed water testing activities and shall repair

or otherwise make whole such damage at no cost to the OWNER.

3. Provide all necessary equipment.


A. Perform work in accordance with the best practice of the industry. The

specifications call attention to the features but not purport to cover all details

entering into the required work.


1. A minimum of 3 years of experience with dyed-water testing in sewers is

required. Furnish documentation of experience to OWNER upon request.

C. Maintain on site at all times a competent field supervisor in charge of the testing.

The field supervisor shall be approved in writing by the ENGINEER prior to

commencement of work. Any change in supervision must also be approved in

writing by the ENGINEER prior to the change.


PART 2 PRODUCTS

2.1 EQUIPMENT

A. Fluorescent Dye

1. Dye may be in tablet, liquid, or powder form.

2. Use dye that is safe to handle, biodegradable and inert to the soil and debris

in sewers. Use dye that is green in color.

3. Dye may be added after the test has begun if it is determined that additional

dye is needed. The darker the water, the more dye will be needed to be

added. Dye manufacturer’s guidelines must be followed.

PART 3 EXECUTION

3.1 COORDINATION AND NOTIFICATION

A. Coordinate and schedule testing dates, times, and location with fire and police

departments, OWNER and any other affected utilities or agencies within at least 2

weeks in advance of the testing. Notify and advise on a daily and street-to-street

basis during the testing.

B. Notify property owner(s) within one week of testing and at least 3 days prior to

testing.

1. Notification can be achieved via mailings, phone calls, and door hangers.

C. Where access to manholes in easements and rights-of-way is required, the

CONTRACTOR will obtain permission for access for equipment.

D. Barricades and warning signs shall be used in work areas and around open

manholes. The CONTRACTOR shall furnish and maintain traffic controls and

safety devices as required.

E. If, in the progress of the work, it is found that some manhole covers are buried

beneath the pavement, the OWNER shall be notified. If the OWNER determines

that access through the manholes is vital to the work, the cover shall be exposed

and the frame shall be reset so that the cover is flush with the pavement. The

pavement surrounding the manhole shall be restored to match the existing

pavement. Such work will be reimbursed by the unit bid item for manhole frame

and cover replacement.


3.2 TRAFFIC CONTROL




3.3 FLOW CONDITIONS

A. Perform sewer dyed- water tests under low flow conditions. The depth of flow in

the manhole should not exceed the height of the bench.

3.4 PROCEDURES

A. If testing a direct connection, such as a downspout or a storm inlet, add dye to the

suspected inflow/infiltration source connection. Add water as necessary.

B. If performing flooded dyed-water testing for storm sewers that are parallel or that

cross sanitary sewers and that have been determined to be leaking during smoke

testing, plug and flood the storm sewers prior to adding dye. Flooded dyed-water

testing can also be used in ditches and other low-lying areas adjacent to sanitary

sewers that have been previously determined to be leaking with smoke testing.

C. Dye testing should not be performed under high flow conditions, when the ground

is saturated, frozen, or snow-packed.

D. Digital Photos: Document all verified inflow sources with a digital photograph.

Photographs shall be provided in JPEG format.

E. CCTV of piping and/or manhole inspection may be necessary to verify findings

from dyed-water testing.

3.5 DOCUMENTATION AND TESTING REPORT

A. Testing report: Document and record the following items on the Sewer Dyed-

Water Testing Form located in EXHIBIT E of this CONTRACT.




4. Lot and Block Number.

5. Type of property.

6. Address of Dye Introduction Location.


7. Name and phone number of property owner.

8. Identification of the location where testing is began.

9. Identification of Location(s) of Positive Dye Transfer Finding(s).

a. Provide type of surface cover and approximate drainage area.

b. Provide recommendation on how to remove or more accurately

identify the inflow source.

c. Mark location of finding on GIS map of the collection system. GIS

map of collection system to be provided by OWNER.

d. Number or label findings in format acceptable to OWNER.

e. Provide estimates of flow rate for each finding (inflow source)

according to following table:

Type of Inflow Sources Estimated Inflow Rate (gpm)

Downspout 10

Area Drain 20

Driveway Drain 15

Foundation Drain 5

Sump Pump 5

Catch Basin 100Table adapted from the Commonwealth of Massachusetts, Department of Environmental Protection.

10. Provide hard copy and digital copy of completed Dyed-Water Testing Form

to the OWNER. Digital copy is to be Microsoft PC compatible.

11. Attach digital photographs of findings to the report. Provide photographs in

JPEG format. Provide hard and digital copies of photographs. The hard

copy of the photograph shall be a minimum of 4” by 6”. Label each

photograph with the following items:

a. Date and time of testing.

b. Address of Dye Introduction Location.

c. Positive Dye Transfer Observation Location.

END OF SECTION


SECTION 02655

SEWER LASER PROFILING AND 3D LASER SCANNING

PART 1 GENERAL

1.1 SUMMARY

A. Section Includes: Laser Profiling and 3D Laser Scanning of underground mainline

pipes to allow for accurate determination of internal pipeline conditions prior to

and/or after rehabilitation (lining), pipeline geometry above fluid level and

quantitative information regarding internal pipe diameter, including ovality. Laser

Profiling /Scanning shall be carried out simultaneously with Television Inspection

as specified in Section 02651. 3D Laser Scanning shall be used for pipe sizes equal

to or greater than 48” in diameter and shall provide an accurate determination of

pipe geometry above the fluid level. Internal diameter and deflection graphs will

be used in conjunction with the integrated and detailed views to precisely quantify

internal pipe wall material loss/gain or deformation at a given payout location and

clocking angle. Pipe cross-sections obtained from precision high resolution scans

will be used to provide quantitative information regarding internal pipe diameter,

including ovality. Precision scans are produced with multi-color indication

depicting deviations from as-built conditions as well as localized material gain

and/or loss.





1.2 REFERENCES





3. ASTM F 1216 - Standard Practice for Rehabilitation of Existing Pipelines

and Conduits by the Inversion and Curing of a Resin-Impregnated Tube


1.3 DEFINITIONS

A. Laser Profiling: Laser Profiling is a technique to determine the surface profile of

mainline pipes less than 48” diameter through laser scanning using a laser profiler

attached to the CCTV inspection equipment.

B. 3D Laser Scanning: 3D Laser Scanning is a technique to determine the surface

profile of mainline pipes for pipe sizes equal to or greater than 48” in diameter

through laser scanning using a 3D spinning laser attached to the CCTV inspection

equipment.


A. Performance Requirements for Laser Profiling in pipes less than 48” in diameter:

1. Perform Laser Profiling using personnel trained and certified in the use of




PACP codification.





Work.


the laser profiling activities, and repair or otherwise make whole such

damage at no cost to OWNER.


a. Laser Profiler: Select a laser profiler that is a stand-alone snap on

tool which can be used with the CCTV inspection equipment and

camera to collect survey data and create pipeline reports containing

the measurement of defects and other features inside the pipeline. Use

a laser profiler that attaches to a CCTV camera and is battery powered

(rechargeable). The profiler shall be capable of measuring the

distances to objects and surfaces in pipes, and shall be capable of

imaging pipe sizes ranging from 12” through 47”. The laser profiler

shall provide measurements of pipe size, laterals, water levels, faults

and other features, as well as quantitative information regarding

internal pipe diameter, including ovality and capacity.

b. Laser Heads: Select and use a laser profiler system that is available

with different sizes of laser heads for different diameter of pipes.


c. Mounting Assembly: Provide a snap-on camera mounting fixture or a

skid type mount and transport assembly for inspection of pipes to

insure maximum stabilization of the projected laser ring within the

pipe being inspected. The mounting assembly shall allow for

simultaneous CCTV inspection and profiling, shall be capable of

forward/ stop/backward mobility for detailed high resolution laser

scans and also be able to support the laser/ camera equipment above

the water level.

d. Profiler Software:

(1) The Standard Measurement Software (SMS) shall be designed for

installation on a standard windows based computer (Laptop or

Desktop).

(2) Shall be able to measure minimum and maximum pipe size, ovality

deformation, X-Y axis measurement, and capacity reduction and

shall be able to generate visual and hard copy reports.

(3) Post-processed data shall include the capability of measuring any

two points within the displayed video or digital images.

(4) Shall be able to generate visual and hard copy reports of 3

dimensional images as well as a flat display of pipe conditions by

percentage color adjustment for the quick analysis of pipeline

problems and defects.

(5) Hard copy reports shall be available in PDF format.

(6) Shall be able to accurately measure cracks, joints, bulges, dimples,

and bubbles in CIPP or other relined pipe when combined with a

camera equipped with calibration spot lasers.

(7) Shall be designed to project a laser light in a radial plane

perpendicular to the CCTV camera’s line of sight and create a 360

degree red line (circle) on the inside wall of the pipe.

(8) Shall include a calibration target to calibrate and verify proof of

calibration for every inspected pipe segment.

(9) Shall correct for barrel distortion of the camera used for the survey

inspection.

(10) Shall continuously acquire and display the cable distance within the

video image and on the processed reports.

(11) Shall use English measurement units.


(12) Shall have the ability to place text anywhere within a captured video

or digital image.

(13) Shall generate digital videos with selected reports for playback on

any computer.

(14) Shall be certified, by independent internationally recognized

pipeline authority to have an application accuracy of 0.5% of the

pipe diameter.

(15) Ovality calculation shall be generated per ASTM 1216 (“q” factor).

(16) Shall process circular, elliptical, horseshoe, box, square and custom

shapes.

B. Performance Requirements for 3D Laser Scanning in pipes for pipe sizes equal to

or greater than 48” in diameter:

1. Perform Laser Scanning using personnel trained and certified in the use of




PACP codification.





Work.





a. 3D Laser Scanning: 3D laser scanning equipment shall be capable of

measuring the distances to objects and surfaces in pipes, and shall be

capable of imaging for pipe sizes equal to or greater than 48” in

diameter. A minimum air space of 24” is required for the laser to

operate. The laser shall support 75 Hz scan rates or higher and be

Class 1; eye-safe for operator safety. The laser unit shall be capable of

being repeatedly actuated to provide data that eliminates six degree-

of-freedom sensor alignment problems. The laser sensor resolution

shall be 10 mm, with a laser sensor accuracy of 5mm at 3 meters in

pipelines 48” and larger.


b. 3D Laser Scanning Software:

(1) The Standard Measurement Software (SMS) shall be designed for

installation on a standard windows based computer (Laptop or

Desktop).








(4) Hard copy reports shall be available in .DOC or PDF format.


and bubbles in CIPP or other relined pipe when combined with a

camera equipped with calibration spot lasers.

(6) Shall use English measurement units.



pipe diameter.



shapes.

1.5 SUBMITTALS


1.



OWNER.

C. Submit three sample inspection reports on a USB flash drive from recent laser

profiling and laser scanning projects of a similar nature. Submit the sample

inspection reports on digital media and provide hard copies.


D. Submit inspection reports and videos of a quality to the satisfaction of the

OWNER. Provide photos and inspection reports on external hard drive(s) if


1. USB flash drives and external hard drive(s) submitted become the property

of the OWNER.

2. Maintain a master copy of all inspection reports and videos submitted until

final acceptance of contract and through warranty period.




Laser Profiling of similar sized infrastructure and 3 years of experience of

3D Laser Scanning for large diameter pipes with sizes equal to or greater

than 48” in diameter.






PART 2 PRODUCTS

NOT USED

PART 3 EXECUTION

3.1 PREPARATION

A. Cleaning: Clean pipelines prior to laser profiling/scanning. Provide cleaning in

accordance with Section 02760 – Cleaning of Sewers.

B. Notification: Notify the OWNER at least 24 hours in advance of any laser

profiling/scanning so that the OWNER may observe the operations.

3.2 LASER PROFILING & 3D LASER SCANNING OF PIPELINES


details entering into the required work


B. General: Perform Laser Profiling on one sewer section that are less than 48” and

perform 3D Laser Scanning on one sewer section that are greater than 48” (i.e.

manhole to manhole) at a time. Ensure that the laser image is in the field of view

of the camera while the CCTV camera moves through the pipe.

C. Laser Profiling/Scanning: Perform Laser Profiling and 3D Laser Scanning

immediately after pipeline cleaning, unless specifically allowed by the OWNER.

Do not allow profiler or scanner and the inspection camera to immediately follow

behind the cleaning mechanism, but rather follow once at a minimum distance of

8-feet from nozzle.

D. Flow Control: Adequately control the flow in the pipeline being laser profiled or

scanned. Do not exceed the depth of wastewater flow shown below: Unless

allowed by OWNER.

Pipe Diameter

(Inches)

Depth of Flow

(Percent of Pipe Diameter)

6 – 10 10

12 – 24 15

Over 24 25

1. If during laser profiling or scanning of a sewer section, the wastewater flow

depth exceeds the maximum allowable, reduce the flow depth to an

acceptable level by performing the work during minimum flow hours, by

diversion pumping or other acceptable dewatering device. Divert the flow in

accordance with Section 02150 – Bypass Pumping.



proper documentation of the sewer's condition, but do not pull the pipe inspection

camera at a speed greater than 30 feet per minute or 9 meters per minute. Position

camera for inspection at the center point of the diameter or as nearest the center of

non-circular piping.

F. Pipeline Conditions: Inspect pipelines by use of the pan-and-tilt feature of the pipe

inspection to determine the condition of the pipeline. Document the conditions,

defects and observations of pipelines using NASSCO’s Pipeline Assessment and


G. Laser Profiling Quality: Reject work that has camera distortions, inadequate

lighting, dirty lens, excessive lighting or blurred/hazy picture of the associated line

segment. Re-profile any laser profiling deemed unacceptable by the OWNER at

no additional cost to the OWNER. Payment for laser profiling will not be made

until OWNER approves the quality of the inspection report and video.



A. Inspection Report: For each Laser profile and 3D Laser scanning inspection,

provide a completely printed inspection report generated by the profiler software

that clearly identifies the location of defects and observations indexed in relation to

adjacent manholes.

1. An integrated overview of data is to be presented in a color coded format as

an unrolled illustration of the pipe condition above the flow line (9:00 to

3:00 clocking angles inclusive) over the length of the inspection segment.

Coded distinctions shall be provided for pipe ID that coincides with

expected values, material loss (corrosion) or outward deformations as

measured by increasing pipe ID, advanced corrosion or deformation, and

material gain (buildup) or inward deformation as measured by decreasing

pipe ID.

2. Precision high resolution laser scan views identifying ovality and deflection

must be presented in a cross-section view where precision scans were taken

during the pipe inspection survey with color coding consistent with the other

defects.

B. Document defects and observations in inspection reports, and supply a copy of

such records together with CCTV reports to the OWNER. CCTV reports shall be

in accordance with specification section 02651 – Television Inspection.


OWNER.




3. JPEG Images: Link JPEG images to inspection report for viewing and

printing when reviewing inspection reports on digital media.




5. Inspection Report Format: Provide each laser inspection report together

with the corresponding CCTV inspection report as specified under

specification section 02651.

C. Digital Video/Audio Recording: Provide each inspection report with digital video

of the inspection.



original picture and sound of the laser profile inspection. Provide the video











f. Size of sewer;














OWNER.










digital recording.





a. Assignment Number



d. Date Televised

e. Date Submitted

f. Basin Number

g. Street Name

h. Pipe Diameter

i. Pipe Length

j. Street Name


END OF SECTION


SECTION 02656

SEWER SONAR INSPECTION

PART 1 GENERAL

1.1 SUMMARY

A. Section Includes: Sonar inspection of underground mainline pipes to allow for

determination of internal pipeline conditions below fluid level prior to and/or after

rehabilitation (lining), pipeline geometry and quantitative information regarding

internal pipe diameter, including ovality. In partially full pipes, sonar profiling

shall be carried out simultaneously with Closed-Circuit Television (CCTV)

Inspection as specified in Section 02651. In pipes flowing full, sonar profiling

shall be carried out as a standalone item.




3. Section 02655 – Sewer Laser Profiling


1.2 REFERENCES





3. ASTM F 1216 - Standard Practice for Rehabilitation of Existing Pipelines

and Conduits by the Inversion and Curing of a Resin-Impregnated Tube

1.3 DEFINITIONS

A. Sonar Profiling: Sonar profiling is a technique that uses sound waves to determine

the surface profile of mainline pipes through using a sonar profiler attached to the

CCTV inspection equipment or camera or as a standalone item



A. Performance Requirements:

1. Perform sonar profiling using personnel trained and certified in the use of




PACP codification. The final report of pipeline condition assessment from

sonar profiling shall be similar to the reports generated for CCTV inspection

as specified in Section 02651.





Work.





a. Sonar Profiler: Select a sonar profiler that is a stand-alone tool which

may or may not be used with the CCTV inspection equipment to

collect survey data and create pipeline reports containing the

measurement of defects and other features inside the pipeline.

(1) Provide base system to include underwater scanning unit,

collapsible sonar siphon float, sonar process/monitor, skid set

and all necessary appurtenances to survey fully submerged (all,

water, no air) and semi submerged pipelines and/or pipelines

containing heavy silt without disrupting the service.

(2) For semi submerged pipeline inspections sonar image shall be

superimposed on the picture to display views above and below

the waterline on one monitor.

(3) Provide equipment with multi-frequency programmable sonar

capable of locating and mapping irregularities by creating

continuous sonar images recorded in real-time mode. The Sonar

equipment shall have the ability to adjust the sonar’s axis and

consequently get additional representation of areas of interest

within the pipe.


(4) The sonar profiler system shall provide visual profile, profile

comparison, and dimensional profile of significant items and

defects, and shall also generate a two-dimensional profile of the

interior pipe wall.

(5) Provide digital sonar equipment, capable of measuring the

distances to objects and surfaces in pipes, and also capable of

imaging pipe sizes ranging from 12” through 72”.

(6) The sonar profiler shall provide measurements of pipe size,

laterals, water levels, faults and other features, as well as

quantitative information regarding internal pipe diameter,

including ovality and capacity, sediment depths and

accumulation.

b. Mounting Assembly: Provide a camera mounting fixture or a skid

type mount and transport assembly for inspection of pipes to insure

maximum stabilization during pipe inspection. The mounting

assembly shall allow for simultaneous video inspection and sonar

profiling, shall be capable of forward/ stop/backward mobility and

also be able to support the video camera equipment above the water

level and the submerged sonar equipment.

(1) For fully submerged pipeline inspections provide system with

sonar siphon float designed to position the sonar in the center of

the pipeline to ensure accurate measurements. Include skid set

specially designed to align the sonar system in submerged

pipelines.

(2) For partially submerged pipeline inspections, provide system

with a float designed to position the camera above the waterline

and the sonar below the waterline to provide a 360-degree survey

of the pipeline.

c. Sonar Profiler Software:

(1) The profiler software shall be designed for installation on a

standard windows based computer (Laptop or Desktop).




(3) Post-processed data shall include the capability of measuring any

two points within the displayed video or digital images. The sonar


software shall be capable of projecting a circle overlay, sizing and

moving anywhere within the image for checking erosion or

remaining wall thickness.





(5) Hard copy reports shall be available in PDF format.


and bubbles in CIPP or other relined pipe.

(7) Shall include a calibration target to calibrate and verify proof of

calibration for every inspected pipe segment.

(8) Shall correct for barrel distortion of the camera used for the survey

inspection.

(9) Shall continuously acquire and display the cable distance within the

video image and on the processed reports.

(10) Shall be adjustable for metric or imperial measurement units.

(11) Shall have the ability to place text anywhere within a captured video

or digital image.

(12) Shall generate digital videos with selected reports for playback on

any computer.



pipe diameter.



shapes.

1.5 SUBMITTALS


1.




OWNER.

C. Submit three sample inspection report on a USB flash drive from recent sonar

profiling projects of a similar nature. Submit the sample inspection reports on

digital media and provide hard copies.

D. Submit inspection reports and videos of a quality to the satisfaction of the

OWNER. Provide photos and inspection reports on external hard drive(s) if


1. USB flash drives and hard drive(s) submitted become the property of the

OWNER.

2. Maintain a master copy of all inspection reports and videos submitted until

final acceptance of contract and through warranty period.




sonar profiling of similar sized infrastructure.






PART 2 PRODUCTS

NOT USED

PART 3 EXECUTION

3.1 PREPARATION

A. Cleaning: Clean pipelines prior to sonar profiling. Provide cleaning in accordance

with Section 02760 – Cleaning of Sewers.

B. Notification: Notify the OWNER at least 24 hours in advance of any sonar

profiling so that the OWNER may observe the operations.


3.2 SONAR PROFILING OF PIPELINES


details entering into the required work

B. General: Perform sonar profiling on one sewer section (i.e. manhole to manhole) at

a time

C. Sonar Profiling: Perform sonar profiling immediately after pipeline cleaning,

unless specifically allowed by the OWNER. Do not allow profiler and the

inspection camera to immediately follow behind the cleaning mechanism, but

rather follow once at a minimum distance of 8-feet from nozzle.

D. Flow Control: Adequately control the flow in the pipeline being profiled by

providing the right mounting assembly. Ensure that the sonar profiler is able to

clear the channel bottom and the camera is able to clear the crown of pipe during

sonar and CCTV profiling. In addition to providing adequate mounting assembly

as specified under section 1.4, the following adjustments may have to be made to

allow for adequate clearance:

1. Where only sonar profiling is being conducted work hours may have to be

adjusted to allow for inspection to be carried out when pipe is flowing full.

2. During combined sonar and CCTV inspections (i.e. in partially full pipes)

work hours may have to be adjusted to allow for inspection to be conducted

during low flow periods.



proper documentation of the sewer's condition, but do not pull the pipe inspection

camera at a speed greater than 30 feet per minute or 9 meters per minute. Position

camera for inspection at the center point of the diameter or as nearest the center of

non-circular piping.

F. Pipeline Conditions: Document the conditions, defects and observations of

pipelines using a format similar to NASSCO’s Pipeline Assessment and


G. Sonar Profiling Quality: Reject work that has camera distortions, inadequate

lighting, dirty lens, excessive lighting or blurred/hazy picture of the associated line

segment. Re-profile any sonar profiling deemed unacceptable by the OWNER at

no additional cost to the OWNER. Payment for sonar profiling will not be made

until OWNER approves the quality of the inspection report and videos.



A. Inspection Report: For each Sonar profile inspection, provide a completely printed

inspection report generated by the profiler software that clearly identifies the

location of defects and observations indexed in relation to adjacent manholes.

Record defects and observations that shall be recorded include structural

deficiencies, the locations and estimations of extraneous flows of service

connections, joints, infiltration, unusual conditions, material transitions, roots,

storm sewer connections and cracked or collapsed sections, the presence of scale

and corrosion, signs of previous leakage, sewer line sections that the camera failed

to pass through and reasons for the failure and other discernible features and data

of significance. Document defects and observations in inspection reports, and

supply a copy of such records to the OWNER

1. Final reports must also include graphical display of sediment volume and

location, sediment levels and pipe capacity depicting actual versus ideal

storage capacity. The data shall be compiled in a format that allows for

calculating changes in sediment depth, sediment volume. And sediment

accumulation, when compared to past or future condition assessments.

2. Precision high resolution sonar scan views identifying ovality and deflection

must be presented in a cross-section view where precision scans were taken

during the pipe inspection survey with color coding and legend.


OWNER.




5. Defect and Observation Codes: Document defects and observations utilizing

coding similar to the latest release of NASSCO’s Pipeline Assessment and

Certification Program© codes. Provide a table listing acronyms and their

meaning with the logs.

6. JPEG Images: Each inspection report shall provide JPEG images of defects

that are in comparison, greater than NASSCO PACP codification grade 3

and observations, including looking up all service laterals, surveyed during

CCTV inspections in the inspection report. Link JPEG images to inspection

report for viewing and printing when reviewing inspection reports on digital

media.





8. Pipeline Condition Rating: Provide a pipeline condition rating in each

inspection report. Use coding similar to NASSCO’s Pipeline Assessment

and Certification Program©, Condition Grading System to determine the

pipeline condition rating.

9. Inspection Report Format: Provide each inspection report with the

following:

a. Sonar Inspection Form: Provide each inspection report with a Sonar

Inspection Form. Use a Sonar Inspection Form that is of a layout and

format similar to NASSCO’s Pipeline Assessment and Certification

Program©, CCTV Inspection Form.

b. Sonar Inspection Graphic Form: Provide each inspection report with a

Sonar Inspection Graphic Form. Include the following in the Sonar

Inspection Graphic Form:

(1) A pipeline illustration showing the pipe and the upstream and

downstream manholes. Show the location of the each defect

and observation in the pipeline illustration.

(2) A record of each defect and observation from the starting

manhole during the inspection. Include the distance from the

starting manhole, coding similar to NASSCO’s Pipeline

Assessment and Certification Program© codes, and identify the

JPEG image for each defect and observation.

(3) Direction of flow and direction of camera movement.

c. Sonar Inspection Image Form: Provide each inspection report with a

Sonar Inspection Image Form. Show a record of each defect and

observation during the inspection with JPEG images displayed with


d. Pipeline Condition Rating Form: Provide each inspection report with

a Pipeline Condition Rating Form. Include the following in the

Pipeline Condition Rating Form:

(1) List the number of structural defects and the number of

operation and maintenance defects per condition grade, (similar

to NASSCO PACP Condition Grades 1 through 5).

(2) List the Structural Pipe Rating, Operations and Maintenance

Pipe Rating, Overall Pipe Rating and Pipe Rating Index.


B. Document defects and observations in inspection reports, and supply a copy of

such records reports to the OWNER.


OWNER.




3. JPEG Images: Link JPEG images to inspection report for viewing and

printing when reviewing inspection reports on digital media.




5. Inspection Report Format: Provide each sonar inspection report together

with in a format similar to CCTV inspection report as specified under

specification section 02651.

C. Digital Video/Audio Recording: Provide each inspection report with digital video

of the inspection.


original picture and sound of the laser profile inspection. Provide the video











f. Size of sewer;















OWNER.










digital recording.




a. Assignment Number



d. Date Televised

e. Date Submitted

f. Basin Number

g. Street Name

h. Pipe Diameter

i. Pipe Length

j. Street Name


END OF SECTION


SECTION 02760

CLEANING OF SEWERS

PART 1 GENERAL

1.1 SUMMARY

A. Section Includes: Furnish all material, labor, supervision, and equipment required to clean pipelines as specified herein complete with all appurtenances and accessories, as required. Work may include trimming protruding sewer taps which will be paid separately under the Contract Items for Trimming Protruding Service Connections. Control flow in sewers, as needed, to permit the Work to be accomplished by use of plugs, flow restrictors, pumped bypasses or other means approved by ENGINEER.


1. Section 02010 - Erosion and Sediment Control2. Section 02110 - Clearing, Grubbing, and Site Restoration3. Section 02150 - Bypass Pumping4. Section 02651 - Television Inspection

1.2 DEFINITIONS:

A. Light cleaning is defined as a minimum of two passes and a maximum of three passes with the high velocity hydraulic-cleaning equipment. Restrict the first pass to 800 psi at the nozzle head. Use pressures for the second and subsequent passes at 1,200 psi.

B. Heavy cleaning is defined as removing all obstructions and debris including but not limited to grease, concrete, or grout in an unlimited number of passes by high velocity hydraulic-cleaning equipment after using buckets, scrapers, scooters, porcupines, kites, heavy-duty brushes, metal pigs, cutters, and other debris removing equipment. Mechanical root cutter may be used in conjunction with the hydraulic-cleaning to loosen harden debris, roots, and grease. Heavy Cleaning requires prior-authorization from the OWNER. Provide the OWNER with photo or video evidence documenting the need for heavy cleaning after Light Cleaning has been completed. The CONTRACTOR is to notify the City if obstructions and debris cannot be removed through the use of the means and methods specified. The City upon evaluation, will make a determination whether the CONTRACTOR is relieved of further cleaning passes, after the notification.

C. Chemical root treatment and chemical grease treatment may be used in conjunction with Light or Heavy Cleaning. These are separate Bid Items from Cleaning.



A. Be aware that this Contract requires work in active sanitary and storm sewers, and follow all Federal, State and local requirements for safety when in confined spaces. Conform with all guidelines by the Occupational Safety and Health Administration (OSHA) Federal Regulations; 29 CFR Ch. XVII, Section 1910.146 Confined Space Entry. Be solely responsible for safety during the performance of all Work.

B. Have experience in the cleaning of sewers of all types, configurations, and pipe wall material. Furnish documentation of experience to the OWNER upon request.

C. Take precautions to protect sewer mains and manholes from damage that might be inflicted by the improper selection of the cleaning process or improper use of the equipment. When using hydraulically propelled devices, take precautions to ensure that the water pressure created does not cause damage or flooding to public or private property. Do not surcharge the sewer beyond the elevation that could cause overflow of sewage into area waterways, homes, or buildings or onto the ground. Notify OWNER immediately of any damage to homes or other private property due to sewer cleaning operations. Be responsible for any damage to public or private property resulting from the cleaning activities, and repair or otherwise make whole such damage at no cost to OWNER.

D. Recognize that there are some conditions such as broken pipe that prevent cleaning from being accomplished or where damage would result if cleaning were attempted or continued. Should such conditions be encountered, immediately notify the OWNER.

1.4 SUBMITTALS

A. General: Provide all submittals, including the following, as specified in Division 1.

B. Submit a plan for disposal of debris and sediment removed from the sewer lines, specifications of the sewer cleaning equipment to be used on the job, and specifications on the equipment to be used to remove sediment and debris at the downstream manhole of each reach to be cleaned.

PART 2 PRODUCTS

2.1 CLEANING EQUIPMENT

A. Clean all sewers with truck-mounted, high velocity hydraulic-cleaning equipment. Mechanical bucket machinery is acceptable for the cleaning process with authorization by the OWNER. Use equipment provided with a minimum of 500 ft of 1-inch internal diameter high pressure hose with a selection of high velocity nozzles, as required for the cleaning operation. Use a sewer cleaner that has a minimum usable water capacity of 600 gallons. Use pumps capable of delivering a


minimum 60 gpm at 1,200 psi at the nozzle head. Regulate pressure to the nozzle by a relief valve, adjustable from 0 to 1,500 psi minimum. Use nozzles that produce a scouring action from 15 to 45 degrees in all size sewers to be cleaned. Use equipment that carries its own 1,000 gallon water tank capable of holding corrosive or caustic cleaning or sanitizing chemicals, auxiliary engines and pumps, and a hydraulically-driven hose reel. Use equipment that includes a high velocity washing hose for ancillary cleaning of the walls, bench, and invert of the manhole. Use a hose that has an adjustable nozzle capable of producing flow from a fine spray to a solid stream. Locate all controls so that the equipment can be operated from above ground. During hydraulic-cleaning, restrict the flow level in the pipe to a maximum of 50 percent of the pipe diameter. Take particular care to avoid flooding house connections during hydraulic-cleaning operations.

B. Provide equipment capable of removing all sand, dirt, rocks and other debris from the sewer reach to allow unobstructed remote CCTV internal inspection of all internal surfaces and subsequent pressure testing of all sewer joints.

C. Own or lease and operate all cleaning equipment, including machines, devices, tools, etc., required for the entire cleaning operation. Certify that backup cleaning equipment is available and can be delivered to the site so the project can be completed on schedule.

D. Remove any blockages of service connections resulting from the cleaning or other items of Work at no cost to the OWNER. Be responsible for any damage or cleaning to private structures required due to water entering from cleaning operation at no cost to OWNER. Correct any damage caused by flooding of lateral building connections, and notify the OWNER.

E. Provide all equipment capable of mechanically removing roots. Use a root saw, spring blade root cutter chuck or approved equal.

PART 3 EXECUTION

3.1 CLEANING

A. The cleaning work required includes, but is not limited to, the following:

1. Field locating and uncovering all manholes, inlets, and catch basins along the sewer reaches to be cleaned. Use state-of-the-art locating equipment to locate and mark above-ground the location of all manholes, inlets, and catch basins included in the pipeline sections detailed in the scope of Work. Uncover and raise any buried or paved-over manholes.

2. Maintaining and protecting both vehicular and pedestrian traffic, and meeting all requirements of the OWNER and all other governmental agencies having jurisdiction.


3. Cleaning of existing sanitary sewers, storm sewers, combined sewers, manholes, as hereinafter specified, to permit proper CCTV inspection and rehabilitation techniques.

4. Disposal of waste, debris, and sediment as specified herein.

5. Removal and disposal of roots as specified herein.

6. Removal of protruding service connections.

7. Cleaning up as the Work progresses and after the completion of all Work activities.

8. All other work required for the complete and satisfactory cleaning of the pipeline.

B. After determining the preliminary requirements and the feasibility of effective video inspection, thoroughly clean all pipeline reaches, manhole inverts and benches in order to permit an unrestricted inspection by CCTV. Carefully remove accumulated grease, roots, sand, rocks, sludge and other debris and obstructions so that the video inspection will show clearly all portions of the pipe being inspected. Acceptable pipeline cleaning shall be determined upon successful completion of CCTV inspection. Acceptable pipeline cleaning is defined as removing sufficient material to ensure an effective rehabilitation of the pipeline, to the satisfaction of the OWNER. If CCTV inspection shows the cleaning to be unsatisfactory, reclean and reinspect the pipeline at no additional cost to the OWNER.

C. The CONTRACTOR shall obtain water required for cleaning by connection to City fire hydrants, provided the connection is made in accordance with City requirements. Provide notice to City Agencies prior to withdrawing water from the hydrants. The CONTRACTOR shall obtain a portable water meter from the City’s Department of Public Utilities and attach a RPZ backflow preventer to the meter in accordance with City standards. A $500.00 deposit for the meter is paid to the City’s Department of Public Utilities. The contractor will pay the Department of Public Utilities for water usage at established rates. Contact the City’s Department of Public Utilities, Special Billing department (804 646-5270) for current water rates. Support meter and backflow preventer so as to not damage hydrants. Be responsible for any damage resulting from improper operation of hydrants. Do not use or obstruct a fire hydrant when there is a fire in the area. Remove water meters, fittings, and piping from fire hydrants at the end of each working day.

D. Do not waste water from the public water supply because of improper connections or from hydrants left opened.

E. Remove all bricks, rocks, debris, sludge, dirt, sand, grease, roots and other materials from the pipelines, manhole benches, drop inlets, and all other


appurtenances as specified herein, and collect and remove the resulting debris from the downstream manhole benches, drop inlets, and all other appurtenances of the pipelines being cleaned. Do not pass waste material between manholes. When necessary, temporarily install a dam trap or weir and screen in the downstream manhole in such manner that traps debris and solids and retains them for subsequent removal. Submit these devices for approval for use.

F. Remove waste and debris cleaned from the sewers from the downstream manhole by vacuum pumps or other means. Return the discharge and drainage stream to the sewer and discharge downstream for disposal. Do not dump under any circumstances sewage or solids onto the ground surface, street, or into ditches, catch basins or storm drains. If sewage is unintentionally spilled, discharged, leaked, or otherwise deposited in the open environment, be responsible for any clean-up and disinfection of the affected area, and comply with all local, State, and Federal regulatory requirements regarding spills. Place all solids and semi-solids in a watertight container so that no spillage or leakage will occur, cover to minimize odors, and dispose. Be responsible for all operations and costs associated with removal, transportation, tipping and disposal of debris collected during the cleaning operations.

1. Waste shall either be:

a. Transported to the City of Richmond Wastewater Treatment Plant screening grit pad for temporary storage and disposed by the OWNER’s Wastewater Treatment Plant solids waste disposal contractor. The waste shall be transported and disposed off to the screening grit pad at the end of each working day.

b. Disposed in a legally-permitted disposal site, as coordinated with the OWNER.

2. As required by the OWNER, dispose of waste using a transporter that has a valid City of Richmond Liquid Waste Transporter Permit.

G. Where access to manholes in easements and rights-of-way is required, obtain permission for access, in writing, for equipment.

H. Use barricades and warning signs in Work areas and around open manholes. Furnish and maintain traffic controls and safety devices as required.

I. Conform to the following requirements:

1. Complete cleaning of upstream reaches of the sewer before the downstream reaches are cleaned.

2. Insert hydraulic-cleaning equipment in the downstream manhole of the reach, and proceed upstream with the Work;


3. Do not damage the existing pipelines with winching equipment.

J. If, in the progress of the Work, it is found that some manhole covers are buried beneath the pavement, notify the OWNER. If the OWNER determines that access through the manholes is vital to the Work, expose the cover and reset the frame so that the cover is flush with the pavement. Restore the pavement surrounding the manhole to match the existing pavement. Replace manhole frame and cover if required. Such work will be reimbursed by the Contract Items 56, 57 and 58 for manhole frame and cover replacement and manhole risers, respectively.

3.2 ROOT REMOVAL

A. At all pipelines or manhole locations with root intrusion, remove the root intrusion by mechanical means.

B. Cut roots by use of a root saw, spring blade root cutter or approved equal.

C. Place screen at the downstream manholes to trap cut roots. Remove and dispose of roots as specified in Paragraph 3.1.E.

D. Cut and remove roots to allow unobstructed survey CCTV inspection and pipe rehabilitation.

3.3 REMOVAL OF PROTRUDING SERVICE CONNECTIONS

A. Be responsible for the removal of protruding service connections and other obstructions that may restrict the passage of CCTV inspection camera and affect the rehabilitation of the sewer pipe as directed by the City. Trimming of protruding service connections will be paid separately under the Contract Items for Trimming Protruding Service Connections.

B. Remove the protruding service connection and obstruction by cutting or grinding with remote cutter. Equip the remote equipment with a grinding/cutting disk capable of removing ductile iron, concrete, vitrified clay and cast iron material. Do not use chain or flail cutting equipment (e.g., Lumberjack) devices without prior authorization from the OWNER. Be responsible for any and all repairs deemed necessary by the Owner, should removal equipment damage existing pipelines.

C. Grind the protruding service connection within ½ inch to the main pipe without scouring or damaging the main pipe.

D. Place a screen at the downstream manhole to prevent cut material flowing downstream. Remove the cut material, and dispose, as specified.

E. Make video recording of the protruding break-in-service connection before and after the grinding operation as specified in Section 02651 – Television Inspection. Submit USBflash drives to the OWNER.


F. If during removal of protruding service connections, the wastewater flow depth in the sewer is high, CONTRACTOR may reduce the flow depth to an acceptable level by performing the removal of protruding service connections during minimum flow hours, by diversion pumping or by pulling the cutter with swab, high-velocity jet nozzle or other acceptable dewatering device. Divert the flow in accordance with Section 02150 – Bypass Pumping.

3.4 CHEMICAL ROOT TREATMENT

A. As directed by the OWNER, treat manhole and sewer sections that have root intrusion with an acceptable herbicide to aid in the removal of roots. The intent of chemical root treatment is to kill tree roots in sanitary sewer lines and to inhibit root re-growth without damaging the trees, the environment, manholes, sewer sections, or the biological mass of the wastewater treatment plant. Use the chemical root treatment material that is labeled for use in sanitary sewer lines. Use chemicals where the active ingredient must be detoxified by natural chemical/biochemical processes following its use. Submit the manufacturer’s recommended guidelines for proper mixing ratios for maximum daily usage of materials. Use materials and mixing/application procedures for chemical root treatment that are consistent with the latest standards, requirements and recommendations of the manufacturer of the chemical root treatment material used.

B. Apply the herbicide to the roots in accordance with the manufacturer’s recommendations and specifications in such a manner to preclude damage to surrounding vegetation. At no additional cost to the OWNER, replace any damaged vegetation so designated by the OWNER. Adhere to all safety precautions as recommended by the manufacturer concerning handling and application of the herbicide. Use RootX© or approved equal.

C. Provide a two-year warranty from the date of application of the root treatment. Provide a CCTV inspection of the treated line one year after application at no additional cost to the OWNER. Coordinate with the OWNER so that the OWNER may be present at the CCTV inspection. If there are any signs of regrowth or growth that was not killed after the first application, treat the line again at no additional cost to the OWNER.

3.5 CHEMICAL GREASE TREATMENT

A. As directed by the OWNER, treat manhole and sewer sections that have grease deposits with an acceptable degreaser to aid in the removal of deposits. The intent of the grease treatment is to liquefy and remove grease deposits in sanitary sewer lines without damaging the environment, manholes, sewer sections, or the treatment plant. Apply the degreaser in accordance with the manufacturer’s recommendations and specifications in such a manner to remove all deposits. Adhere to all safety precautions as recommended by the manufacturer concerning handling and application of the degreaser. Use Jetfoam© or approved equal.


B. Demonstrate the effectiveness of the grease treatment by conducting a post-cleaning CCTV inspection two weeks after the application of the grease treatment. If there are any signs of grease deposition, treat the line again at no additional cost to the OWNER.

END OF SECTION