ADDENDUM

REVISION DATE 2017.03.03 ADDENDUM 1

P-96254660-MWC ADDENDUM # 1 Issue Date: December 13, 2017

The Purpose of this Addendum # 1 is to provide Updates to the Drawings, Supplemental Information,

and a Project Time Line.

Updates to the Drawings: (2 pages) o Replaces Sheets 2 and 5, Pages 45 and 48, in the Specifications

Supplemental Information: Existing Utilities Map (1 pages)

Supplemental Information: OSU Tree Protection Contract Standards (1 page)

Project Timeline: o PO to be issued immediately upon successful award of project. o Contractor mobilization may begin immediately upon receipt of PO

Expected no later than January 22, 2018 o Waterproofing scope to be completed by March 2, 2018 o Remainder of project in its entirety to be completed by April 20, 2018

All other specifications remain unchanged.

All inquiries during the bid and evaluation process must be directed to the Buyer of Record,

OSU and the A&M Systems Purchasing Department, by phone at 405-744-5984, fax 405-744-

5187, email purchase@okstate.edu, or if you are responding to an online solicitation please

use the associated Question and Answer Board. Contact with the end user or department

during the bid and evaluation process may disqualify bid.

The OSU and A&M Systems Purchasing Department

ADDENDUM

W

W

W

W

W

W

W

W

W

W

G

G

G

G

G

GG

G

G

G

G

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PUG

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PUG

PUG

PUG

PUG

PUG

PUG

PUG

PUG

PUG

PUG

PUG

PUG

PUG

PUG

PUG

PUG

PUG

PUGPUG

FOC

FOC

FOC

FOC

FOC

FOC

FOC

FOC

FOC

FOC

FOC

FOC FOC FOC FOC FOC FOC FOC FOC FOC

FOC

FOC

SS

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

PU

G

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PUG PUG PUGPUG

PUG

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PUG PUG PUG PUG PUG PUG PUG PUG PUG PUG PUG

PUG

PUG

TUG

TUG

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TUG

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TUG

TUG

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TUG

TUG

TUGTUG

TUG

TUG

TUG

TUG

TUG

TUG

TUG

TU

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932.0

9

3

4

.

0

9

3

0

.

5

931.0

931.5

932.5

933.0

9

3

3

.

5

9

3

4

.

5

9

3

5

.0

935.5

930.0

932.0

929.0

9

2

9

.5

930.5

931.0

931.5

9

3

2

.

5

934.0

936.0

9

3

2

.5

933.0

933.5

934.5

935.0

935.5

9

3

6

.5

936.5

933.0

933.5

934.0

934.5

935.0

935.5

936.0

936.5

9

3

1

.

5

9

3

1

.

0

9

3

2

.

0

REMOVE EXISTING INLET

DOWEL TO

EXISTING

STR. 1

STA. 9+75.00

PROPOSED 24" NYLOPLAST

BASIN W/ DOME GRATE

TG = 930.74

FL IN (8") = 928.99

FL OUT (EXIST 8").= 928.99

PROPOSED

8" HDPE

REMOVE AND REPLACE

CONCRETE SIDEWALK

932.0

9

3

2

.5

9

3

1

.

5

9

3

2

.

0

9

3

2

.

5

9

3

2

.0

9

3

1

.5

9

3

1

.0

932.0

932.5

9+

50

10+

00

11+

00

1

2

+

0

0

1

2

+

2

5

931.5

932.5

STR. 4

STA. 11+84.80

PROPOSED 12" NYLOPLAST

BASIN W/ DOME GRATE

TG = 932.42

FL (8") = 930.67

PROPOSED

8" HDPE

GRADE TO DRAIN

STR. 3

STA. 11+30.06

PROPOSED 12" NYLOPLAST

BASIN W/ DOME GRATE

TG = 931.98

FL IN (8") = 930.23

FL OUT (8")=930.23

STR. 2

STA. 10+60.40

PROPOSED 12" NYLOPLAST

BASIN W/ DOME GRATE

TG = 931.42

FL IN (8") = 929.67

FL OUT (8") = 929.67

PROPOSED

8" HDPE

DOWEL TO

EXISTING

5'

5.85'

4'

8'

4'

5.79'

REMOVE SIDEWALK

REPAIR WATERPROOFING

REPLACE SIDEWALK

17'

15

'

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

2021

22

23

REMOVE

HANDRAILS

24

DOWEL TO

EXISTING

DOWEL TO

EXISTING

932.84

932.86

933.22

933.22

933.30

933.30

933.30

933.30

932.72

932.64

932.72

933.22

933.22

932.64

932.72

932.72

COORDINATE TABLE

POINT NO. NORTHING EASTING ELEVATION

932.61

932.64

932.64

932.64

932.74

932.75

932.58

932.59

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

410824.93

410828.93

410828.86

410828.83

410846.03

410846.16

410844.99

410844.99

410829.99

410829.85

410826.02

410825.84

410822.53

410822.66

410826.30

410826.36

410830.35

410829.66

410825.66

410830.02

410829.84

410829.94

410825.94

410824.90

2241607.67

2241607.60

2241622.61

2241627.61

2241622.70

2241627.56

2241729.01

2241737.09

2241729.04

2241737.09

2241727.43

2241738.16

2241727.58

2241738.49

2241789.99

2241795.78

2241795.96

2241715.76

2241715.76

2241727.43

2241738.16

2241749.82

2241749.82

2241613.52

932.84

1. ADDITIONAL WORK AND/OR ITEMS NOT COVERED IN THE PROJECT

SPECIFICATIONS SHALL CONFORM TO LOCAL JURISDICTIONAL

STANDARDS AND THE OKLAHOMA DEPARTMENT OF TRANSPORTATION

STANDARD SPECIFICATIONS FOR HIGHWAY CONSTRUCTION, CURRENT

EDITION.

2. ALL TESTING DENOTED HEREIN SHALL BE PERFORMED BY AN AASHTO

ACCREDITED TESTING AGENCY. ALL TESTS (INCLUDING FAILING

TESTS) SHALL BE MADE AT THE CONTRACTOR'S EXPENSE. TEST

RESULTS SHALL BE DELIVERED TO THE OWNER'S DESIGNATED

REPRESENTATIVE FOR ACCEPTANCE PRIOR TO CONTINUING WORK.

3. GIVE THE NOTIFICATION CENTER OF OKLAHOMA ONE-CALL SYSTEM

(1-800-522-6543) NOTICE OF ANY EXCAVATION NO EARLIER THAN 10

DAYS NOR LATER THAN 48 HOURS, EXCLUDING SUNDAYS, SATURDAYS

AND LEGAL HOLIDAYS, PRIOR TO COMMENCE OF WORK.

4. EXISTING UTILITIES SHOWN ON THE PLANS ARE APPROXIMATED

BASED ON RECORD DRAWINGS OR HORIZONTAL LOCATIONS FLAGGED

IN THE FIELD. ALL VERTICAL LOCATIONS ARE APPROXIMATE DEPTH

ONLY. THE ENGINEER DOES NOT GUARANTEE THE ACCURACY OF

UTILITIES INFORMATION FIELD VERIFY THE PRESENCE, TYPE, SIZE,

LOCATION AND DEPTH OF ALL EXISTING UTILITIES IN THE PROJECT

AREA PRIOR TO CONSTRUCTION. NOTIFY THE OWNER AND ENGINEER

OF ANY DISCREPANCIES BEFORE PROCEEDING WITH WORK.

5. REMOVE FROM THE WORK SITE ALL TRASH AND CONSTRUCTION

DEBRIS AT THE END OF EACH DAY AND LEAVE THE AREA IN A NEAT,

ORDERLY AND SAFE CONDITION.

6. UPON COMPLETION OF CONSTRUCTION, ALL DISTURBED AREAS SHALL

BE SODDED ACCORDING TO PLAN SPECIFICATIONS. THE CONTRACTOR

SHALL BE RESPONSIBLE FOR THE FERTILIZATION AND WATERING OF

SOD AREAS UNTIL GROWTH IS ESTABLISHED IN A CONDITION

ACCEPTABLE TO THE OWNER.

7. THE CONTRACTOR SHALL BE RESPONSIBLE FOR OBTAINING THE

NECESSARY WORK ORDERS AND PERMITS FROM THE LOCAL

JURISDICTIONAL AUTHORITY AND/OR THE STATE OF OKLAHOMA,

INCLUDING PROVISIONS OF BONDS AND INSURANCE AS REQUIRED.

8. DIMENSIONS ARE TO FACE OF CURB OR NEAREST EDGE OF WALL

UNLESS OTHERWISE NOTED.

9. TOPOGRAPHIC INFORMATION TAKEN FROM PROVIDED SURVEY. IF

CONTRACTOR DOES NOT ACCEPT EXISTING TOPOGRAPHY AS SHOWN

ON PLANS, CONTACT ENGINEER AND SURVEYOR IMMEDIATELY.

10. CONDUCT AS-BUILT MEASUREMENTS AND SUBMIT DOCUMENTATION

TO THE OWNER PRIOR TO FINAL ACCEPTANCE.

11. MAINTAIN ALL EXISTING PARKING, SIDEWALKS, DRIVES, ETC. CLEAR

AND FREE FROM ANY CONSTRUCTION ACTIVITY AND/OR MATERIAL

STORAGE TO ENSURE SAFE PEDESTRIAN AND VEHICULAR TRAVEL TO

AND FROM THE SITE.

12. COORDINATE ANY TEMPORARY PRIVATE DRIVE CLOSURES WITH

OWNER AT LEAST 48 HOURS PRIOR TO CLOSURE.

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M

GENERAL NOTES:

1. CUT OR FILL SLOPES SHALL BE 5:1 OR FLATTER UNLESS OTHERWISE

NOTED.

2. IF ANY EXISTING STRUCTURES TO REMAIN ARE DAMAGED DURING

CONSTRUCTION, IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO

REPAIR AND/OR REPLACE THE EXISTING STRUCTURE, AS NECESSARY,

TO RETURN IT TO EXISTING CONDITION OR BETTER.

3. STORM SEWER PIPE CONNECTIONS TO STRUCTURES SHALL BE

GROUTED TO ASSURE CONNECTION AT STRUCTURE IS WATERTIGHT.

ALL STORM SEWER STRUCTURES SHALL HAVE A SMOOTH, UNIFORMLY

POURED MORTAR INVERT FROM END TO END.

4. SITE GRADING SHALL NOT PROCEED UNTIL APPROPRIATE EROSION

AND SEDIMENT CONTROL MEASURES HAVE BEEN INSTALLED. ADHERE

TO ALL TERMS AND CONDITIONS AS OUTLINED IN GENERAL PERMIT

OKR10 AND THE STORM WATER POLLUTION PREVENTION PLAN, IF

APPLICABLE.

5. UNSURFACED AREAS DISTURBED BY GRADING OPERATION SHALL

RECEIVE 5 INCHES OF TOPSOIL TO FINAL GRADE AND SHALL BE

SODDED PER THE PLANS AND SPECIFICATIONS UNLESS OTHERWISE

SHOWN IN LANDSCAPE ARCHITECT DOCUMENTS.

6. ASSURE POSITIVE DRAINAGE AWAY FROM BUILDING FOR ALL PAVED

AND UNPAVED AREAS THROUGHOUT ALL PHASES OF CONSTRUCTION.

7. EXISTING DRAINAGE STRUCTURES TO BE INSPECTED AND REPAIRED

AS NEEDED, AND EXISTING PIPES TO BE CLEANED TO REMOVE ALL

SILT AND DEBRIS.

8. PROPOSED CONTOURS DEPICT FINAL PAVING ELEVATION. ADJUST

SUBGRADE AS NECESSARY FOR PAVEMENT THICKNESS.

9. FILL MATERIAL SHALL BE PLACED IN LOOSE LIFTS NOT EXCEEDING

EIGHT (8) INCHES AND COMPACTED IN A MANNER APPROVED BY THE

FIELD ENGINEER.

10. BACKFILLING OF TRENCHES SHALL BE PLACED IN LAYERS NOT

EXCEEDING EIGHT (8) INCHES AND SHALL BE COMPACTED TO NO LESS

THAN 95% STANDARD PROCTOR DENSITY. PERFORM A MINIMUM OF

ONE TEST PER EVERY 100 LINEAR FEET OF TRENCH FOR EACH LIFT OF

BACKFILL.

11. OFF-SITE BORROW MATERIAL SHALL CONSIST OF LOW PLASTICITY

MATERIAL HAVING A PLASTICITY INDEX OF 18 OR LESS AND

CONTAINING AT LEAST 15% FINES (MATERIALS PASSING THE NO. 200

SIEVE BASED ON DRY WEIGHT). FILL MATERIALS SHALL BE FREE OF

ORGANIC MATTER AND DEBRIS AND CONTAIN A MAXIMUM ROCK SIZE

OF APPROXIMATELY 3INCHES. ALL ON-SITE OR OFF-SITE MATERIALS

PROPOSED FOR USE AS FILL SHALL BE TESTED AND ACCEPTED PRIOR

TO USE.

GRADING NOTES:

SITE PLAN

2

1. REMOVE THE EXISTING SIDEWALK AND EXCAVATE TO EXPOSE THE

BASEMENT FLOOR, APPROXIMATELY 10 FEET IN DEPTH. STOCKPILE THE

EXCAVATED MATERIAL ONSITE. THE EXCAVATION SHALL BE SLOPED 1:1

PER OSHA SPECIFICATION.

2. BEAD BLAST BELOW GRADE CONCRETE SURFACES TO REMOVE

EXISTING COATING. A TEST SAMPLE MAY BE REQUIRED TO DETERMINE

IF ADEQUATE CLEANING RESULTS WERE OBTAINED, AT THE OWNERS

DISCRETION. ADDITIONAL CLEANING METHODS MAY BE REQUIRED TO

OBTAIN SATISFACTORY RESULTS.

3. REMOVE AND REPAIR CONCRETE SPALLS AND CRACKS. THE PERIMETER

OF THE DETERIORATED AREAS SHALL BE SAW CUT AND THE

DETERIORATED CONCRETE CHIPPED OUT WITH CHIPPING HAMMERS TO

SOUND CONCRETE, OR TO THE MAXIMUM DEPTH OF 2". THESE AREAS

SHALL THEN BE FORMED AND PATCHED BACK WITH BAG MIX REPAIR

MORTAR. ANY EXPOSED STEEL SHALL BE GROUND FREE OF RUST AND

COATED WITH ARMATEC ANTI-CORROSION COATING. THE

CONFIGURATION OF THE PATCH SHALL MATCH THE EXISTING AS CLOSE

AS POSSIBLE.

4. APPLY A COLD-APPLIED, WATERBORNE EMULSIFIED-ASPHALT

DAMPROOFING SYSTEM TO PREPARE BELOW GRADE CONCRETE

SURFACES. THE DAMPROOFING SYSTEM SHALL CONSIST OF:

A. (1) COAT OF TREMCO TREMPROOF 250GC, TROWELED ON SURFACE.

B. (1) 2ND OF TREMCO TREMPROOF 250GC, TROWELED ON SURFACE.

C. (1) LAYER OF FAN FOLDED POLYSTYRCNE FOAM PROTECTION BOARD

OVER THE SECOND COAT.

THE DAMPROOFING SYSTEM SHALL CURE FOR APPROXIMATLY (7) DAYS

PRIOR TO BACKFILLING.

5. BACKFILL WITH STOCKPILED MATERIAL IN LAYERS NOT EXCEEDING

EIGHT (8) INCHES. BACKFILL SHALL BE COMPACTED TO NO LESS THAN

95% STANDARD PROCTOR DENSITY. AFTER BACKFILL IS INSTALLED TO

OWNER'S SATISFACTION, CONSTRUCT NEW SIDEWALK.

WATERPROOFING NOTES:

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TRENCH WIDTH

1

STORM SEWER BEDDING DETAIL (HDPE)

TOP 5" TO BE TOPSOIL

6"

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T=TRENCH WIDTH

D/2

NO. 57 AGGREGATE BEDDING

ODOT SPECIFICATION 701.06

HDPE STORM

SEWER

TRACER WIRE

OVER PIPE

WARNING TAPE

SELECT BACKFILL COMPACTED

TO 95% S.P.D. (6" LIFTS)

NOTE: DRAINAGE DETAILS SHOWN FOR

INFORMATIONAL PURPOSES ONLY. SEE

ADVANCED DRAINAGE SYSTEMS SPECIFICATION

HANDBOOK FOR ADVANCED DETAILS.

DETAIL SHEET

5

4"-30"

*

(

1

)

3.25

30"

10" M

IN

.

3

NYLOPLAST DRAIN BASIN (OR APPROVED EQUAL)

2

SIDEWALK ALONG BUILDING DETAIL

4" TYPE A AGG. BASE

6 X 6 10/10 W.W.M.

4" P.C. CONCRETE (3000 PSI)

MAX. 2% CROSS SLOPE

MIN. 1% CROSS SLOPE

4'-0"

DUCTILE IRON FRAME AND GRATE

INLET AND OUTLET

ADAPTERS AVAILABLE

4" THRU 30"

VARIOUS TYPES OF OUTLETS WITH WATERTIGHT

ADAPTERS FOR:

ADS N-12

SDR-35 SEWER

SCHEDULE 40 DWV

CORRUGATED PVC

RIBBED PVC

VARIABLE INVERT

HEIGHT

VARIABLE OVERALL

HEIGHT *(2)

*(2) MAXIMUM RECOMMENDED

OVERALL HEIGHT 10'

*(1) ADAPTERS CAN BE MOUNTED ON ANY ANGLE 0° TO 359°. TO

DETERMINE MINIMUM BETWEEN ADAPTERS SEE DRAWING

NO. 7001-110-014

EXISTING

STRUCTURE

GENERAL NOTES

1. 1/2" X 4" PREMOULDED EXPANSION MATERIAL AROUND STRUCTURES IN WALK.

2. EXPANSION JOINTS MAXIMUM DISTANCE = 100', USE 1/2" X 4" PREMOULDED EXPANSION MATERIAL.

3. CONTRACTION JOINTS MAXIMUM DISTANCE = 7', SAW CUT 1-1/2" DEEP AND FILL WITH HOT POURED SEALER.

4. SAW CUT JOINTS WITHIN 24 HOURS.

5. USE 1/2" X 4" PREMOULDED EXPANSION JOINT AT EXISTING BUILDING.

1/2 " EXPANSION MATERIAL AND

JOINT SEALANT

4" TYPE A AGG. BASE

6" P.C. CONCRETE (3000 PSI)

WITH #4 18" O.C.

4

SIDEWALK TO BUILDING DETAIL

MAX. 2% CROSS SLOPE

MIN. 1% CROSS SLOPE

VARIES

SEE PLANS

GENERAL NOTES

1. CONTRACTION JOINTS MAXIMUM DISTANCE = 7', SAW CUT 1-1/2" DEEP AND FILL WITH HOT POURED SEALER.

2. SAW CUT JOINTS WITHIN 24 HOURS.

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Adopted as part of the OSU Tree Campus USA, Tree Care Plan

OSU TREE PROTECTION NOTES

Tree Protection Fencing will be put in place by Facilities Management Landscape Services prior to the start of Construction to protect tree trunks, canopies, and roots during the construction project. Fence removal will also be performed by OSU once construction is completed.

Panel Fencing will be constructed to keep tree roots and trunks protected. The area will be known as the “Tree Protection Root Zone”. Fencing must not be shifted, disturbed or removed during the construction. Any work around trees must be approved by OSU’s Urban Forester in advance.

Construction personnel must remain off limits in the fenced panel areas and keep the area clear of building materials, waste, excess soil, and porta potties. No trenching or other soil disturbances should be allowed in the fenced areas. The fence must not be moved during construction. MOWING and any other grounds maintenance needs inside the tree protection fencing will be performed by Facilities Management Landscape Maintenance Services. The ability to repair construction damage to trees is ineffective. The single most important action OSU can take is tree protection. Construction site visits will occur by Facilities Management Landscape Services staff to evaluate the tree protection efforts. Work will be stopped and fines assessed should guidelines not be practiced or damage occurs.

KEEP THESE FACTS IN MIND WHEN WORKING AROUND TREES.

Tree roots are shallow.

Ninety percent of the fine, water- and mineral-absorbing roots of a tree are in the upper six to twelve inches of soil. Piling soil over a root system or increasing a soil grade can smother roots. Cutting or removing too many roots is also harmful.

Tree roots are extensive and go 2 to 3 times past the canopy drip line.

Soil compaction caused by increased foot traffic and heavy machinery decreases soil oxygen and water pores, inhibiting root penetration and resulting in tree health decline.

Site clearing by adding or grading away soil, damages tree roots causing lasting negative impacts even death.

Severed roots even if it is just one major root can add up to a tree loosing 5 to 20 percent of its entire root system.

Physical injury to the trunk, limbs, and branches can lead to disease and decay.