benton county road-streambank stabilization project little osage … · 2019-12-08 · benton...

BENTON COUNTY ROAD-STREAMBANK STABILIZATION PROJECT LITTLE OSAGE CREEK

RFB Issue/Ad Date(s): December 8, 2019 RFB Issuing Office: Benton County Government Properties Representative: Terry Lewis Office Phone: 479-464-6168 Fax: 479-271-1748 E-mail: [email protected] USPS Mail Address: (or hand-deliver)

Benton County Administration Building Properties Office

215 E. Central Ave., Ste. 304 Bentonville, AR 72712 Attention: Terry Lewis Bids Due / Deadline: January 3, 2020 @ 2:00 p.m. local time Pursuant to Arkansas Code Annotated §22-9-203 Benton County encourages all qualified small, minority and women business enterprises to bid on and receive contracts for goods, services, and construction. Also, Benton County encourages all general contractors to subcontract portions of their contract to qualified small, minority and women business enterprises.

RFB’s shall be submitted in sealed envelopes labeled: 2019 Streambank Stabilization Little Osage Creek with the name and address of the Bidder.

RFB’s shall be submitted in accordance with the attached Benton County specifications and RFB documents attached hereto. Each Bidder is required to fill in every blank and shall supply all information requested; failure to do so may be used as basis of rejection

Benton County RFB 2019 Road Dept-Little Osage Creek Streambank Stabilization

Benton County RFB 2019 Road Dept-Little Osage Creek Streambank Stabilization Advertisement

Benton County, Arkansas is requesting bids for stream bank improvements on Osage Creek and Spring Creek, Cave Springs, Arkansas. To be considered, bid must be received at the Benton County Administration Building, 215 East Central, Ste. 304, Bentonville, Arkansas before January 3, 2020 @ 2:00 pm (local time) Forms and addendums can be downloaded from the County’s web site at https://bentoncountyar.gov/accounting/open-bids/. All questions regarding the qualification process should be directed to Terry Lewis at [email protected] or by telephone at 479-464-6168. All questions regarding specifications should be directed to Josh Beam @ 479-271-1052 or via email at [email protected]. Any bid received without a 5% bid bond attached, will be consider void. Bids submitted shall be qualified to do business and licensed in accordance with all applicable laws of the state and local governments where the project is located. Winning Contractor must comply with all applicable requirements for federally funded construction. Pursuant to Arkansas Code Annotated §22-9-203 Benton County encourages all qualified small, minority and women business enterprises to bid on and receive contracts for goods, services, and construction. Also, Benton County encourages all general contractors to subcontract portions of their contract to qualified small, minority and women business enterprises. Benton County reserves the right to reject any and all bids and to waive irregularities therein, and all Bidders shall agree that such rejection shall be without liability on the part of Benton County for any damage or claim brought by any Bidder because of such rejections, nor shall the Bidder seek any recourse of any kind against Benton County because of such rejections. The filing of any bid in response to this invitation shall constitute an agreement of the Bidder to these conditions. Ad Dates: Dec. 8, and 15, 2019


Benton County RFB 2019 Road Dept-Little Osage Creek Streambank Stabilization CONTENTS

SECTION

PAGE NUMBER

Cover page

01

Advertisement

02

Contents

03

Section A: General Terms & Conditions

04

Section B: Vendor References

11

Section C: Statement of Disclosure and Contact Information

12

Section D: Specifications

14

Bid Sheet

60


Benton County RFB 2019 Road Dept-Little Osage Creek Streambank Stabilization Section A: General Terms & Conditions

1. SUBMISSION OF A BID:

A. Please submit (1) electronically (CD or USB flash drive) in addition to one (1) hard copy. Please submit your documents on a properly labeled CD or USB flash drive. The use of Adobe PDF documents is strongly recommended. Files contained on the CD or electronic media shall not be restricted against saving or printing. The electronic copy shall be identical to the original papers submitted. Electronic copies shall not be submitted via e-mail to County employees.

B. Bids will be reviewed following the stated deadline, as shown on the cover sheet of this document.

The names of respondents only will be available after the deadline until a contract has been awarded by the Benton County. All interested parties understand proposal documents will not be available until after a valid contract has been executed.

C. Bidders shall submit a bid based on documentation published by Benton County. D. Bids shall be enclosed in sealed envelopes or packages addressed to Benton County, 215 East

Central, Room 304, Bentonville, Arkansas 72712. The name, address of the firm and RFB name shall be on the outside of the packaging as well as on any packages enclosed in shipping containers or boxes.

E. Bids must follow the format of the RFB. Bidders should structure their responses to follow the

sequence of the RFB. F. Bidders shall have experience in work of the same or similar nature, and must provide references

that will satisfy Benton County. Bidder may furnish a reference list, of clients for whom they have performed similar services and must provide information as requested in this document.

G. Bidder is advised that exceptions to any of the terms contained in this RFB must be identified in its

response to the RFB. Failure to do so may lead the County to declare any such term non-negotiable. Bidder’s desire to take exception to a non-negotiable term will not disqualify it from consideration for award.

H. Bids will need to be received by January 3, 2020 @ 2:00 pm (local time).

2. WRITTEN REQUESTS FOR INTERPRETATIONS OR CLARIFICATION: No oral interpretations will be made to any firms as to the meaning of specifications or any other contract documents. All questions pertaining to the terms and conditions or scope of work of this bid must be sent in writing via e-mail to the County Properties office. Responses to questions may be handled as an addendum if the response would provide clarification to the requirements of the bid/proposal. All such addenda shall become part of the contract documents. The County will not be responsible for any other explanation or interpretation of the proposed RFB made or given prior to the award of the contract.


3. RIGHTS OF BENTON COUNTY IN REQUEST FOR BID PROCESS: In addition to all other rights of Benton County, under state law, the County specifically reserves the following:

A. Benton County reserves the right to rank firms and negotiate with the highest-ranking firm. B. Benton County reserves the right to select the bid that it believes will serve the best interest of the

County. C. Benton County reserves the right to accept or reject any and all bids. D. Benton County reserves the right to cancel the entire request for bid. E. Benton County reserves the right to remedy or waive technical or immaterial errors in the request

for bid or in bids submitted. F. Benton County reserves the right to request any necessary clarifications, additional information, or

proposal data without changing the terms of the bid.

G. Benton County reserves the right to make selection of the Bidder to perform the services required on the basis of the original bid without negotiation.

4. EVALUATION CRITERIA: The evaluation criteria define the parameters that will be used by the selection committee to evaluate and score responsive, responsible and qualified bids. The different evaluation parameters are shown in the chart below:

Item No.

Parameter

1 Specialized experience and technical competence of the firm with respect to the type of professional services required.

2 Capacity and capability of the firm to perform the work in question including specialized services, within the time limitations fixed for the completion of the project.

3 Past record of performance of the firm with respect to such factors as control of costs, quality of work and ability to meet schedules and deadlines.

4 Firm’s proximity to and familiarity with the area in which the project is located.


5. COSTS INCURRED BY BIDDERS: All expenses involved with the preparation and submission of bids to the County, or any work performed in connection therewith, shall be borne solely by the Bidder(s). No payment will be made for any responses received, or for any other effort required of, or made by, the Bidder(s) prior to contract commencement. 6. ORAL PRESENTATION: An oral presentation and/or interview may be requested of any firm, at the selection committee’s discretion. 7. CONFLICT OF INTEREST:

A. The Bidder represents that it presently has no interest and shall acquire no interest, either direct or indirect, which would conflict in any manner with the performance or services required hereunder, as provided in Arkansas Code Annotated §14-14-1202.

B. The Bidder shall promptly notify Benton County in writing, of all potential conflicts of interest for any prospective business association, interest, or other circumstance which may influence or appear to influence the bidder’s judgment or quality or services being provided. Such written notification shall identify the prospective business association, interest or circumstance, the nature of which the Bidder may undertake and request an opinion to the County as to whether the association, interest or circumstance would, in the opinion of the County; constitute a conflict of interest if entered into by the Bidder. The County agrees to communicate with the Bidder its opinion via e-mail or first-class mail within thirty days of receipt of notification.

8. WITHDRAWAL OF BID: A bid may be withdrawn at any time. 9. LATE BID OR MODIFICATIONS: A. Bid and modifications received after the time set for the bid submittal shall not be considered.

Modifications in writing received prior to the deadline will be accepted. The County will not be responsible for misdirected bids. Bidders should contact the County Properties office at (479) 464-6168 to ensure receipt of their submittal documents prior to opening time and date listed.

B. The time set for the deadline shall be local time for Bentonville, Arkansas on the date listed. All bids

shall be received in the County Properties office BEFORE the stated deadline. 10. LOCAL, STATE AND FEDERAL COMPLIANCE REQUIREMENTS: A. The laws of the State of Arkansas apply to any purchase made under this request for bid. Bidders

shall comply with all local, state, and federal directives, orders and laws as applicable to this bid and subsequent contract(s) including but not limited to Equal Employment Opportunity (EEO), Disadvantaged Business Enterprises (DBE), & OSHA as applicable to this contract.

B. Pursuant to Arkansas Code Annotated §22-9-203 Benton County encourages all qualified small,

minority and women business enterprises to bid on and receive contracts for goods, services, and construction. Also, Benton County encourages all general contractors to subcontract portions of their contract to qualified small, minority and women business enterprises.


11. COLLUSION: The Bidder, by affixing his or her signature to this bid, agrees to the following: “Bidder certifies that his bid is made without previous understanding, agreement, or connection with any person, firm or corporation making a bid for the same item(s) and/or services and is in all respects fair, without outside control, collusion, fraud, or otherwise illegal action.” 12. RIGHT TO AUDIT, FOIA AND JURISDICTION: A. Benton County reserves the privilege of auditing a vendor’s records as such records relate to

purchases between the County and said vendor. B. Freedom of Information Act: County contracts and documents prepared while performing County

contractual work are subject to the Arkansas Freedom of Information Act. If a Freedom of Information Act request is presented to Benton County, the (Contractor) will do everything possible to provide the documents in a prompt and timely manner as prescribed in the Arkansas Freedom of Information Act (§A.C.A. 25-19-101). Only legally authorized photocopying costs pursuant to the FOIA may be assessed for this compliance.

C. Legal jurisdiction to resolve any disputes shall be Arkansas with Arkansas law applying to the case. 13. COUNTY INDEMNIFICATION:

A. Due to the County statutory tort immunity, it doesn’t carry liability insurance for such claims. Accordingly, any contract entered into with the successful bidder/candidate may not include a clause in which the County agrees that it or its’ officials or employees will indemnify the other party.

B. The successful Bidder(s) agrees to indemnify the County and hold it harmless and against all claims, liability, loss, damage or expense, including but not limited to counsel fees, arising from or by reason of any actual or claimed trademark, patent or copyright infringement or ligation based thereon, with respect to the services or any part thereof covered by this order, and such obligation shall survive acceptance of the services and payment thereof by the County.

14. VARIANCE FROM STANDARD TERMS & CONDITIONS: All standard terms and conditions stated in this request for bid apply to this contract except as specifically stated in the subsequent sections of this document, which take precedence, and should be fully understood by Bidders prior to submitting a bid on this requirement. 15. PAYMENT AND INVOICING: The Bidder must specify in their bid the exact company name and address which must be the same as invoices submitted for payment as a result of award of this RFB. Further, the successful Bidder is responsible for immediately notifying the County Properties office of any company name change, which would cause invoicing to change from the name used at the time of the original RFB.


16. CANCELLATION: A. The County reserves the right to cancel this contract without cause by giving thirty (30) days prior

notice to the Contractor in writing of the intention to cancel or with cause if at any time the Contractor fails to fulfill or abide by any of the terms or conditions specified.

B. Failure of the contractor to comply with any of the provisions of the contract shall be considered a

material breach of contract and shall be cause for immediate termination of the contract at the discretion of Benton County.

C. In addition to all other legal remedies available to Benton County, the County reserves the right to

cancel and obtain from another source, any items and/or services which have not been delivered within the period of time from the date of order as determined by Benton County.

D. Any contract entered into with a successful bidder/candidate extending beyond the current budget

year the County (which is the calendar year) is subject to non-appropriation. Accordingly, any contract entered into by the County must provide that in the event no funds or insufficient funds are appropriated for the continuation of the contract, the contract will end as of the last day for which funds were appropriated without penalty to the county.

17. ASSIGNMENT, SUBCONTRACTING, CORPORATE ACQUISITIONS AND/OR MERGERS: A. The Contractor shall perform this contract. No assignment of subcontracting shall be allowed without

prior written consent of the County. If a Bidder intends to subcontract a portion of this work, the Bidder shall disclose such intent in the bid submitted as a result of this RFB.

B. In the event of a corporate acquisition and/or merger, the Contractor shall provide written notice to the

County within thirty (30) calendar days of Contractor’s notice of such action or upon the occurrence of said action, whichever occurs first. The right to terminate this contract, which shall not be unreasonably exercised by the County, shall include, but not limited to, instances in which a corporate acquisition and/or merger represent a conflict of interest or are contrary to any local, state, or federal laws. Action by the County awarding a bid to a firm that has disclosed its intent to assign or subcontract in its response to the RFB, without exception shall constitute approval for purpose of this Agreement.

18. NON-EXCLUSIVE CONTRACT: Award of this RFB shall impose no obligation on the County to utilize the vendor for all work of this type, which may develop during the contract period. This is not an exclusive contract. The County specifically reserves the right to concurrently contract with other companies for similar work if it deems such an action to be in the County’s best interest. In the case of multiple-term contracts, this provision shall apply separately to each item. 19. ADDITIONAL REQUIREMENTS: The County reserves the right to request additional services relating to this RFB from the Bidder. When approved by the County as an amendment to the contract and authorized in writing prior to work, the Contractor shall provide such additional requirements as may be necessary.


20. BID SECURITY REQUIRMENTS Every bid over $20,000.00 submitted for construction to Benton County shall be void unless accompanied by a cashier’s check drawn upon a bank or trust company doing business in Arkansas or by a corporate bid bond. The bid security shall be 5% of the amount of the bid. 21. SERVICES AGREEMENT OR CONTRACT: A written agreement, in substantially the form attached, incorporating the RFB and the successful bid will be prepared by the Bidder, signed by the successful Bidder and presented to Benton County for approval and signature of the County Judge. 22. INTEGRITY OF REQUEST FOR BID DOCUMENTS: Bidders shall use the original RFB form(s) provided by the County Properties office and enter information only in the spaces where a response is requested. Bidders may use an attachment as an addendum to the RFB form(s) if sufficient space is not available on the original form for the Bidder to enter a complete response. Any modifications or alterations to the original RFB documents by the Bidder, whether intentional or otherwise, will constitute grounds for rejection of such RFB response. Any such modifications or alterations a Bidder wishes to propose shall be clearly stated in the Bidder’s RFB response and presented in the form of an addendum to the original RFB documents. 23. OTHER GENERAL CONDITIONS: A. Bidder must provide the County with their bids signed by an employee having legal authority to submit

bids on behalf of the Bidder. The entire cost of preparing and providing responses shall be borne by the Bidder.

B. The County reserves the right to request any additional information it deems necessary from any or all

Bidders after the submission deadline. C. The request for bid is not to be construed as an offer, a contract, or a commitment of any kind, nor

does it commit the County to pay for any costs incurred by Bidder in preparation. It shall be clearly understood that any costs incurred by the Bidder in responding to this request for bid is at the Bidder’s own risk and expense as a cost of doing business. The County shall not be liable for reimbursement to the Bidder for any expense so incurred, regardless of whether or not the bid is accepted.

D. If products, components, or services other than those described in this bid document are proposed,

the bidder must include complete descriptive literature for each. All requests for additional information must be received within five working days following request.

E. Any uncertainties shall be brought to the attention of Ms. Terry Lewis immediately via telephone (479)

464-6168 or by e-mail at [email protected]. It is the intent and goal of Benton County to provide documents providing a clear and accurate understanding of the scope of work to be completed and/or goods to be provided. We encourage all interested parties to ask questions to enable all bidders to be on equal bid terms.

F. Any inquiries or requests for explanation in regard to the County’s requirements should be made

promptly to Ms. Terry Lewis, Benton County, via e-mail at [email protected] or telephone at (479) 464-6168. No oral interpretation or clarifications will be given as to the meaning of any part of this request for bid. All questions, clarifications, and requests, together with answers, if

mailto:[email protected]

mailto:[email protected]


any will be provided to all firms via written addendum. Names of firms submitting any questions, clarifications, or requests will not be disclosed until after a contract is in place.

G. At the discretion of the County, one or more firms may be asked for more detailed information before

final ranking of the firms, which may also include oral interviews. NOTE: Each Bidder shall submit an “Authorized Negotiator Form” containing the signature of a duly authorized officer or agent of the Bidder’s company empowered with the right to bind and negotiate on behalf of the Bidder for the amounts and terms proposed.

H. Any information provided herein is intended to assist the Bidder in the preparation of bid necessary to

properly respond to this RFB. The RFB is designed to provide qualified Bidders with sufficient basic information to submit bids meeting specifications and/or test requirements, but is not intended to limit a RFB’s content or exclude any relevant or essential data.

I. Bidders irrevocably consent that any legal action or proceeding against it under, arising out of or in any

manner relating to this Contract shall be controlled by Arkansas law. Bidder hereby expressly and irrevocably waives any claim or defense in any said action or proceeding based on any alleged lack of jurisdiction or improper venue or any similar basis.

J. The successful Bidder shall not assign the whole or any part of this Contract or any monies due or to

become due hereunder without written consent of Benton County. In case the successful Bidder assigns all or any part of any monies due or to become due under this Contract, the Instrument of assignment shall contain a clause substantially to the effect that is agreed that the right of the assignee in and to any monies due or to become due to the successful Bidder shall be subject to prior liens of all persons, firms, and corporations for services rendered or materials supplied for the performance of the services called for in this contract.

K. The successful Bidder’s attention is directed to the fact that all applicable Federal and State laws,

County and municipal ordinances, and the rules and regulations of all authorizes having jurisdiction over the services shall apply to the contract throughout, and they will be deemed to be included in the contract as though written out in full herein. The successful Bidder shall keep himself/herself fully informed of all laws, ordinances and regulations of the Federal, State, County and municipal governments or authorities in any manner affecting those engaged or employed in providing these services or in any way affecting the conduct of the services and of all orders and decrees of bodies or tribunals having any jurisdiction or authority over same. If any discrepancy or inconsistency should be discovered in these Contract Documents or in the specifications herein referred to, in relation to any law, ordinance, regulation, order or decree, he/she shall herewith report the same in writing to Benton County.

L. All Benton County properties are tobacco-free zones. Bidder, contractor(s), subcontractor(s) and all

hired staff – whether part time or full time – shall abide by County rules. County Property includes interior of County buildings, exterior yards, lawns, parking lots, and picnic areas.

M. All charges should be included on the Official Bid Sheet(s) which includes all associated costs

(including but not limited to delivery, freight, tax, etc.) for the goods or services being bid.


Benton County RFB 2019 Road Dept-Little Osage Creek Streambank Stabilization Section B: Vendor References

The following information is required from all bidders so all bids may be reviewed and properly evaluated: Company Name________________________________________________________________ Business Address_______________________________________________________________ Number of years in business _________ How long in present location ____________________ Total number of current employees ______________ Full time _________Part time _________ Number of employees you plan to use to service this contract ______ Full time _____Part time _____ Please list local commercial and/or governmental references that you have previously performed similar contract services for within the past five (5) years:

1 Company Name: ______________________________________________________

City, State, Zip: ______________________________________________________

Contact Person: ______________________________________________________

Telephone: ______________________________________________________

Fax Number: ______________________________________________________

E-Mail Address: ______________________________________________________

2 Company Name: ______________________________________________________

City, State, Zip: ______________________________________________________

Contact Person: ______________________________________________________

Telephone: ______________________________________________________

Fax Number: ______________________________________________________

E-Mail Address: ______________________________________________________

3 Company Name: ______________________________________________________

City, State, Zip: ______________________________________________________

Contact Person: ______________________________________________________

Telephone: ______________________________________________________

Fax Number: ______________________________________________________

E-Mail Address: ______________________________________________________

4 Company Name: ______________________________________________________

City, State, Zip: ______________________________________________________

Contact Person: ______________________________________________________

Telephone: ______________________________________________________

Fax Number: ______________________________________________________

E-Mail Address: ______________________________________________________


Benton County RFB 2019 Road Dept-Bank Stabilization Project Section C: Statement of Disclosure and Contact information

Bidder must disclose any possible conflict of interest with Benton County, including, but not limited to, any relationship with any Benton County employee. Your response must disclose if a known relationship exists between any principal or employee of your firm and any Benton County employee or County elected official. If, to your knowledge, no relationship exists, this should also be stated in your response. Failure to disclose such a relationship may result in cancellation of a purchase and/or contract as a result of your response. This form must be completed and returned in order for your bid to be eligible for consideration. PLEASE CHECK ONE OF THE FOLLOWING AS IT APPROPRIATELY APPLIES TO YOUR FIRM: ______________ NO KNOWN RELATIONSHIP EXISTS ______________ RELATIONSHIP EXISTS (Please explain) _________________________________________________________________________________________________

_________________________________________________________________________________________________

_________________________________________________________________________________________________

_________________________________

PRIMARY CONTACT INFORMATION

At the discretion of the County, one or more firms may be asked for more detailed information before final ranking of the firms, which may also include oral interviews. NOTE: Each Bidder shall submit to the County a primary contact name, e-mail address, and phone number (preferably a cell phone number) the County Selection Committee can contact for clarification or interview via telephone.

Name of Primary Contact:________________________________________________________

Title of Primary Contact:________________________________________________________

Phone number #1 (cell phone):___________________ Secondary Phone#:_________________

E-Mail Address:________________________________________________________________

Is the primary contact (listed in part 1) able to legally bind contracts? YES NO (circle one)

If no, please list contact that can legally bind a contract for the firm:

Name:____________________________________________

Title:_____________________________________________

Phone #1 (cell phone):__________________________ Phone 2:__________________________

E-Mail Address:_________________________________________________________________


Benton County RFB 2019 Road Dept-Bank Stabilization Project Section D: Specifications

SPECIFICATIONS

It is the intent of these specifications to describe in sufficient detail to secure bids on comparable items. Any items not conforming to these specifications will be rejected, and it will be the responsibility of the bidder to conform to the requirements unless deviations have been specifically cited by the bidder and an acceptance made on the basis of the exception. Benton County will require a performance bond before contract is awarded.

Winning Contractor must comply with all applicable requirements for federally funded construction. Bid must be signed to be considered.

The undersigned hereby offers to furnish and deliver the articles or services as specified, at the prices and terms stated herein, and in strict accordance with the specifications and general conditions of bidding, all of which are made a part of the offer. This offer is not subject to withdrawal unless upon mutual written agreement by the Bidder and County Judge.

1. I, as an officer of this organization, or per the attached letter of authorization, am duly authorized to certify the information provided herein are accurate and true; and

2. My organization shall comply with all State and Federal Equal Opportunity and Non-Discrimination requirements and conditions of employment.

Date: ___________________

Signature: X____________________________________

Name: ____________________________________

Company: ____________________________________

Address: ____________________________________

____________________________________

City, State, Zip: ____________________________________

Phone: ____________________________________

Email: ____________________________________

*Please submit (1) original bid and (1) one copy (CD or USB flash drive).

LITTLE OSAGEEWP

CONTRACT SPECIFICATIONS STREAMBANK STABILIZATION

The following Specifications marked [X] will be applicable to this contract:

A. CONSTRUCTION SPECIFICATIONS

Spec. No.

[X] 5. POLLUTION CONTROL [X] 6. SEEDING, SPRIGGING, AND MULCHING [X] 8. MOBILIZATION AND DEMOBILIZATION [X] 21. EXCAVATION [X] 23. EARTHFILL [X] 61. ROCK RIPRAP [X] 95. GEOTEXTILE

B. MATERIAL SPECIFICATIONS

[X] 523. ROCK FOR RIPRAP [X] 592. GEOTEXTILE

CONSTRUCTION SPECIFICATIONS

(210-VI-NEH, May 2001)

Construction Specification 5—Pollution Control

1. ScopeThe work consists of installing measures or performing work to control erosion and minimize the pro-duction of sediment and other pollutants to water and air from construction activities.

2. MaterialAll material furnished shall meet the requirements of the material specifications listed in section 8 of thisspecification.

3. Erosion and sediment control measures and worksThe measures and works shall include, but are not limited to, the following:

Staging of earthwork activities—The excavation and moving of soil materials shall be scheduled tominimize the size of areas disturbed and unprotected from erosion for the shortest reasonable time.

Seeding—Seeding to protect disturbed areas shall occur as soon as reasonably possible followingcompletion of that earthwork activity.

Mulching—Mulching to provide temporary protection of the soil surface from erosion.

Diversions—Diversions to divert water from work areas and to collect water from work areas for treat-ment and safe disposition. They are temporary and shall be removed and the area restored to its nearoriginal condition when the diversions are no longer required or when permanent measures are installed.

Stream crossings—Culverts or bridges where equipment must cross streams. They are temporary andshall be removed and the area restored to its near original condition when the crossings are no longerrequired or when permanent measures are installed.

Sediment basins—Sediment basins collect, settle, and eliminate sediment from eroding areas fromimpacting properties and streams below the construction site(s). These basins are temporary and shallbe removed and the area restored to its original condition when they are no longer required or whenpermanent measures are installed.

Sediment filters—Straw bale filters or geotextile sediment fences trap sediment from areas of limitedrunoff. Sediment filters shall be properly anchored to prevent erosion under or around them. Thesefilters are temporary and shall be removed and the area restored to its original condition when they areno longer required or when permanent measures are installed.

Waterways—Waterways for the safe disposal of runoff from fields, diversions, and other structures ormeasures. These works are temporary and shall be removed and the area restored to its original condi-tion when they are no longer required or when permanent measures are installed.

Other—Additional protection measures as specified in section 8 of this specification or required byFederal, State, or local government.

4. Chemical pollutionThe contractor shall provide watertight tanks or barrels or construct a sump sealed with plastic sheets todispose of chemical pollutants, such as drained lubricating or transmission fluids, grease, soaps, concretemixer washwater, or asphalt, produced as a by-product of the construction activities. At the completion of

5–1

(210-VI-NEH, May 2001)

the construction work, sumps shall be removed and the area restored to its original condition as specified insection 8 of this specification. Sump removal shall be conducted without causing pollution.

Sanitary facilities, such as chemical toilets, or septic tanks shall not be located next to live streams,wells, or springs. They shall be located at a distance sufficient to prevent contamination of any watersource. At the completion of construction activities, facilities shall be disposed of without causing pollu-tion as specified in section 8 of this specification.

5. Air pollutionThe burning of brush or slash and the disposal of other materials shall adhere to state and local regulations.

Fire prevention measures shall be taken to prevent the start or spreading of wildfires that may resultfrom project activities. Firebreaks or guards shall be constructed and maintained at locations shown onthe drawings.

All public access or haul roads used by the contractor during construction of the project shall besprinkled or otherwise treated to fully suppress dust. All dust control methods shall ensure safe con-struction operations at all times. If chemical dust suppressants are applied, the material shall be a com-mercially available product specifically designed for dust suppression and the application shall followmanufacturer's requirements and recommendations. A copy of the product data sheet andmanufacturer's recommended application procedures shall be provided to the engineer 5 working daysbefore the first application.

6. Maintenance, removal, and restorationAll pollution control measures and temporary works shall be adequately maintained in a functionalcondition for the duration of the construction period. All temporary measures shall be removed and thesite restored to near original condition.

7. Measurement and paymentMethod 1—For items of work for which specific unit prices are established in the contract, each item ismeasured to the nearest unit applicable. Payment for each item is made at the contract unit price for thatitem. For water or chemical suppressant items used for dust control for which items of work are estab-lished in section 8 of this specification, measurement for payment will not include water or chemicalsuppressants that are used inappropriately or excessive to need. Such payment will constitute full com-pensation for the completion of the work.

Method 2—For items of work for which lump sum prices are established in the contract, payment ismade as the work proceeds and supported by invoices presented by the contractor that reflect actualcosts. If the total of all progress payments is less than the lump sum contract price for this item, thebalance remaining for this item will be included in the final contract payment. Payment of the lump sumcontract price will constitute full compensation for completion of the work.

Method 3—For items of work for which lump sum prices are established in the contract, payment willbe prorated and provided in equal amounts on each monthly progress payment estimate. The number ofmonths used for prorating shall be the number estimated to complete the work as outlined in thecontractor's approved construction schedule. The final month's prorate amount will be provided withthe final contract payment. Payment as described will constitute full compensation for completion of thework.

5–2

(210-VI-NEH, May 2001)

All Methods—The following provisions apply to all methods of measurement and payment. Compensa-tion for any item of work described in the contract, but not listed in the bid schedule is included in thepayment for the item of work to which it is made subsidiary. Such items, and the items to which they aremade subsidiary, are identified in section 8 of this specification.

8. Items of work and construction details

5–3

NRCS-AR (5-4) EWP, Wharton Creek

8. ITEMS OF WORK AND CONSTRUCTION DETAILS

The items of work to be performed in conformance with this specification and theconstruction details therefore are:

a. Subsidiary Item, Pollution Control

1) The Contractor shall develop and implement a Storm Water Pollution Prevention Plan(SWPPP) to control erosion and minimize the production of sediment and otherpollutants during construction operations. The Plan shall meet the requirements of theNational Pollution Discharge Elimination System (NPDES) and shall incorporate butnot be limited to measures specified in section 3 of this specification and items shownon the drawings and specified in Section 8 of this specification.

The Contractor shall be in compliance with all applicable terms and conditions ofGeneral Permit No. ARR150000 of the Arkansas Department of EnvironmentalQuality (ADEQ). The SWPPP shall follow the format of the ADEQ template for asite with automatic coverage.

2) The Plan shall be submitted to the Contracting Officer for approval prior tocommencing construction activities. However, approval of the Contractor’s SWPPdoes not relieve the Contractor of responsibility of complying with all local, state,federal regulations for pollution control.

3) No separate payment will be made for Pollution Control. Compensation for this itemwill be included in Bid Item 1, Mobilization and Demobilization.

(210-VI-NEH, May 2001)

Construction Specification 6—Seeding, Sprigging,and Mulching

1. ScopeThe work consists of preparing the area for treatment; furnishing and placing seed, sprigs, mulch, fertil-izer, inoculant, lime, and other soil amendments; and anchoring mulch in designated areas as specified.

2. MaterialSeed—All seed shall conform to the current rules and regulations of the state where it is being used andshall be from the latest crop available. It shall meet or exceed the standard for purity and germinationlisted in section 7.

Seed shall be labeled in accordance with the state laws and the U.S. Department of Agriculture rules andregulations under the Federal Seed Act in effect on the date of invitations for bids. Bag tag figures areevidence of purity and germination. No seed will be accepted with a test date of more than 9 monthsbefore the delivery date to the site.

Seed that has become wet, moldy, or otherwise damaged in transit or storage will not be accepted. Thepercent of noxious weed seed allowable shall be as defined in the current State laws relating to agricul-tural seeds. Each type of seed shall be delivered in separate sealed containers and fully tagged unlessexception is granted in writing by the contracting officer.

Fertilizer—Unless otherwise specified, the fertilizer shall be a commercial grade fertilizer. It shall meetthe standard for grade and quality specified by State law. Where fertilizer is furnished from bulk storage,the contractor shall furnish a supplier's certification of analysis and weight. When required by the con-tract, a representative sample of the fertilizer shall be furnished to the contracting officer for chemicalanalysis.

Inoculants—The inoculant for treating legume seeds shall be a pure culture of nitrogen-fixing bacteriaprepared specifically for the species and shall not be used later than the date indicated on the containeror as otherwise specified. A mixing medium, as recommended by the manufacturer, shall be used tobond the inoculant to the seed. Two times the amount of the inoculant recommended by the manufac-turer shall be used except four times the amount shall be used when seed is applied using a hydraulicseeder. Seed shall be sown within 24 hours of treatment and shall not remain in the hydraulic seederlonger than 4 hours.

Lime and other soil amendments—Lime shall consist of standard ground agriculture limestone, or ap-proved equivalent. Standard ground agriculture limestone is defined as ground limestone meeting cur-rent requirements of the State Department of Agriculture. Other soil amendments shall meet qualitycriteria and application requirements specified in section 7.

Mulch tackifiers—Asphalt emulsion tackifiers shall conform to the requirements of ASTM D 977,Specification for Emulsified Asphalt. The emulsified asphalt may be rapid setting, medium setting, orslow setting. Nonasphaltic tackifiers required because of environmental considerations shall be as speci-fied in section 7.

Straw mulch material—Straw mulch shall consist of wheat, barley, oat or rye straw, hay, grass cutfrom native grasses, or other plants as specified in section 7. The mulch material shall be air-dry, reason-ably light in color, and shall not be musty, moldy, caked, or otherwise of low quality. The use of mulchthat contains noxious weeds is not permitted. The contractor shall provide a method satisfactory to thecontracting officer for determining weight of mulch furnished.

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(210-VI-NEH, May 2001)

Other mulch materials—Mulching materials, such as wood cellulose fiber mulch, mulch tackifiers, syn-thetic fiber mulch, netting, and mesh, are other mulching materials that may be required for specializedlocations and conditions. These materials, when specified, must be accompanied by the manufacturer'srecommendations for methods of application.

3. Seeding mixtures, sod, sprigs, and dates of plantingThe application rate per acre for seed mixtures, sprigs, or sod and date of seeding or planting shall be asshown on the plans or as specified in section 7.

4. Seedbed preparation and treatmentAreas to be treated shall be dressed to a smooth, firm surface. On sites where equipment can operate onslopes safely, the seedbed shall be adequately loosened (4 to 6 inches deep) and smoothed. Dependingon soil and moisture conditions, disking or cultipacking, or both, may be necessary to properly prepare aseedbed. Where equipment cannot operate safely, the seedbed shall be prepared by hand methods byscarifying to provide a roughened soil surface so that broadcast seed will remain in place.

If seeding is to be accomplished immediately following construction operations, seedbed preparationmay not be required except on a compacted, polished, or freshly cut soil surface.

Rocks larger than 6 inches in diameter, trash, weeds, and other debris that will interfere with seeding ormaintenance operations shall be removed or disposed of as specified in section 7.

Seedbed preparation shall be discontinued when soil moisture conditions are not suitable for the prepa-ration of a satisfactory seedbed as determined by the contracting officer's technical representative(COTR).

5. Seeding, sprigging, fertilizing, mulching, and stabilizingAll seeding or sprigging operations shall be performed in such a manner that the seed or sprigs are ap-plied in the specified quantities uniformly in the designated areas. The method and rate of seed applica-tion shall be as specified in section 7. Unless otherwise specified, seeding or sprigging shall be accom-plished within 2 days after final grading is completed and approved.

Fertilizer, lime, and other soil amendments shall be applied as specified in section 7. When specified, thefertilizer and soil amendments shall be thoroughly incorporated into the soil immediately followingsurface application.

The rate, amount, and kind of mulching or mesh shall be as specified in section 7. Mulches shall be ap-plied uniformly to the designated areas. They shall be applied to areas seeded not later than 2 workingdays after seeding has been performed. Straw mulch material shall be stabilized within 24 hours of appli-cation using a mulch crimper or equivalent anchoring tool or by a suitable tackifier. When the mulchcrimper or equivalent anchoring tool is used, it shall have straight blades and be the type manufacturedexpressly for and capable of firmly punching the mulch into the soil. Where the equipment can be safelyoperated, it shall be operated on the contour. Hand methods shall be used where equipment cannotsafely operate to perform the work required.

The tackifier shall be applied uniformly over the mulch material at the specified rate, or it shall be in-jected into the mulch material as it is being applied. Mesh or netting stabilizing materials shall be appliedsmoothly, but loosely on the designated areas. The edges of these materials shall be buried or securelyanchored using spikes or staples as specified in section 7.

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(210-VI-NEH, May 2001)

The contractor shall maintain the mesh or netting areas until all work under the contract has been com-pleted and accepted. Maintenance shall consist of the repair of areas damaged by water erosion, wind,fire, or other causes. Such areas shall be repaired to reestablish the intended condition and to the designlines and grades required by the contract. The areas shall be refertilized, reseeded, and remulched beforethe new application of the mesh or netting.

6. Measurement and paymentMethod 1—For items of work for which specific unit prices are established in the contract, each areatreated is measured as specified in section 7 and the area calculated to the nearest 0.1 acre. Payment fortreatment is made at the contract unit price for the designated treatment, which will constitute full com-pensation for completion of the work.

When specified as an item of work, mesh or netting is measured to the nearest square yard of surfacearea covered and accepted. Payment is made at the contract unit price and will constitute full compensa-tion for completion of the work.

Method 2—For items of work for which specific lump sum prices are established in the contract, thequantity of work will not be measured for payment. Payment for this item is made at the contract lumpsum price for the item and will constitute full compensation for the completion of the work.

Method 3—For items of work for which lump sum prices are established in the contract, payment ismade as the work proceeds. Progress payments will be determined as specified in section 7. Payment ofthe lump sum contract price will constitute full compensation for completion of the work.

All Methods—The following provisions apply to all methods of measurement and payment. Compensa-tion for any item of work described in the contract, but not listed in the bid schedule is included in thepayment for the item of work to which it is made subsidiary. Such items and the item(s) to which theyare made subsidiary are identified in section 7.


6–3


Items of work to be performed in conformance with this specification and the construction details therefore are:

a. Bid Item 5, Seeding, Sprigging and Mulching

This item shall consist of furnishing and applying fertilizer and either seed and straw mulch or sprigs, asspecified, to all areas disturbed during construction, except those covered with rock.

1) Fertilizer shall be uniformly applied at the rate of 300 pounds of l0-20-20, or equivalent, per acre. It shall beapplied prior to seeding or sprigging and shall be thoroughly mixed into the top layer of soil by disking orother approved methods. Disking and mixing deeper than approximately two inches will not be permitted.

2) All seed shall be Certified (Blue Tag).

3) The following treatment will be used for all areas depending upon the time of year that construction iscompleted.

TREATMENT A - March l to May l, seed a mixture of:

Sericea Lespedeza - 35 pounds of scarified seed with a minimum of 76 percent pure live seed, or equivalent,per acre, and

Weeping Lovegrass - 4 pounds of seed with a minimum of 80 percent pure live seed, or equivalent, per acre.

TREATMENT B - May l to September l, seed a mixture of:

Browntop Millet - 30 pounds of seed with a minimum of 8l percent pure live seed, or equivalent, per acre, and

Sudan Grass or Sorghum - Sorghum - Sudan Hybrids - 30 pounds of seed with a minimum of 81 percent pure live seed, or equivalent, per acre.

TREATMENT C - September l to November l, seed a mixture of:

Tall Fescue - 40 pounds of seed with a minimum of 83 percent pure live seed, or equivalent, per acre, and

Vetch - 20 pounds of seed with a minimum of 8l percent pure live seed, or equivalent, per acre.

TREATMENT D - November l to March l:

Seed l20 pounds of cereal rye, wheat, or oats with a minimum of 8l percent pure live seed per acre and seed 36 pounds Bahia mix.

4) All seed mixtures shall be seeded with a broadcast seeder, grassland drill, or other method that will obtain auniform distribution of seed and provide about l/8 inch cover for seed in Treatment A, and about 1/4 to l/2inch of cover for seed in Treatment B and C. Seedbed will be left firm by using a drag or roller..

5) All legume seed shall be inoculated with the appropriate commercial culture.

6) Seeding or sprigging operations shall be on the contour or cross slope.

NRCS-ARKANSAS (6-4) EWP, Wharton Creek

7) Straw mulch shall be applied at a rate of 2 tons per acre.

8) Mulch shall be stabilized by the use of one (1) pass of mulch crimper or by a suitable tackifier. When acrimper is used, it shall have straight blades and be of type manufactured expressly for and capable of firmlyattaching the mulch to the soil and shall be operated on the contour. Crimping shall be performed within 24hours of mulch application. A disk harrow shall not be used for mulch stabilization.

9) When an asphalt emulsion is used as a tackifier, the rate shall be ninety (90) gallons per ton of mulch.Asphalt emulsion shall conform to ASTM-0-977, Emulsified Asphalt. Emulsion asphalt may be rapid setting,medium setting, or low setting.

10) Measurement and payment will be by Method 1.


(210-VI-NEH, May 2001)

Construction Specification 8—Mobilization andDemobilization

1. ScopeThe work consists of the mobilization and demobilization of the contractor's forces and equipment nec-essary for performing the work required under the contract. It does not include mobilization and demo-bilization for specific items of work for which payment is provided elsewhere in the contract. Mobiliza-tion will not be considered as work in fulfilling the contract requirements for commencement of work.

2. Equipment and materialMobilization shall include all activities and associated costs for transportation of contractor's personnel,equipment, and operating supplies to the site; establishment of offices, buildings, and other necessarygeneral facilities for the contractor's operations at the site; premiums paid for performance and paymentbonds including coinsurance and reinsurance agreements as applicable; and other items specified insection 4 of this specification.

Demobilization shall include all activities and costs for transportation of personnel, equipment, andsupplies not required or included in the contract from the site; including the disassembly, removal, andsite cleanup of offices, buildings, and other facilities assembled on the site specifically for this contract.

This work includes mobilization and demobilization required by the contract at the time of award. Ifadditional mobilization and demobilization activities and costs are required during the performance ofthe contract as a result of changed, deleted, or added items of work for which the contractor is entitledto an adjustment in contract price, compensation for such costs will be included in the price adjustmentfor the item or items of work changed or added.

3. PaymentPayment will be made as the work proceeds, after presentation of paid invoices or documentation ofdirect costs by the contractor showing specific mobilization and demobilization costs and supportingevidence of the charges of suppliers, subcontractors, and others. When the total of such payments is lessthan the lump sum contract price, the balance remaining will be included in the final contract payment.Payment of the lump sum contract price for mobilization and demobilization will constitute full compen-sation for completion of the work.

Payment will not be made under this item for the purchase costs of materials having a residual value, thepurchase costs of materials to be incorporated in the project, or the purchase costs of operating sup-plies.


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NRCS – ARKANSAS (8-2) EWP, Wharton Creek


Items of work to be performed in conformance with this specification and constructiondetails are:

a. Item 1, Mobilization and Demobilization

(1) This item shall consist of the mobilization and demobilization of the Contractorsforces and equipment necessary for performing the work required under thisagreement and demobilization upon completion.

(2) This item shall also include maintaining the route of ingress and egress in atrafficable condition during construction.

(3) The contractor shall be responsible for locating all buried utilities and notifyingall utility companies of pending construction by calling (1-800-482-8998).

(4) Items of work subsidiary to this bid item are:

(a) Pollution Control, as specified in Construction Specification 5.

(5) Payment will be made as specified in the section 3.

(210-VI-NEH, May 2001)

Construction Specification 21—Excavation

1. ScopeThe work shall consist of the excavation required by the drawings and specifications and disposal of theexcavated materials.

2. ClassificationExcavation is classified as common excavation, rock excavation, or unclassified excavation inaccordance with the following definitions.

Common excavation is defined as the excavation of all materials that can be excavated, transported,and unloaded using heavy ripping equipment and wheel tractor-scrapers with pusher tractors or that canbe excavated and dumped into place or loaded onto hauling equipment by excavators having a ratedcapacity of one cubic yard or larger and equipped with attachments (shovel, bucket, backhoe, dragline,or clam shell) appropriate to the material type, character, and nature of the materials.

Rock excavation is defined as the excavation of all hard, compacted, or cemented materials that re-quire blasting or the use of ripping and excavating equipment larger than defined for common excava-tion. The excavation and removal of isolated boulders or rock fragments larger than 1 cubic yard en-countered in materials otherwise conforming to the definition of common excavation shall be classifiedas rock excavation. The presence of isolated boulders or rock fragments larger than 1 cubic yard is notin itself sufficient cause to change the classification of the surrounding material.

For the purpose of these classifications, the following definitions shall apply:

Heavy ripping equipment is a rear-mounted, heavy duty, single-tooth, ripping attachment mountedon a track type tractor having a power rating of at least 250 flywheel horsepower unless otherwisespecified in section 10.

Wheel tractor-scraper is a self-loading (not elevating) and unloading scraper having a struck bowlcapacity of at least 12 cubic yards.

Pusher tractor is a track type tractor having a power rating of at least 250 flywheel horsepowerequipped with appropriate attachments.

Unclassified excavation is defined as the excavation of all materials encountered, including rockmaterials, regardless of their nature or the manner in which they are removed.

3. BlastingThe transportation, handling, storage, and use of dynamite and other explosives shall be directed andsupervised by a person(s) of proven experience and ability who is authorized and qualified to conductblasting operations.

Blasting shall be done in a manner as to prevent damage to the work or unnecessary fracturing of theunderlying rock materials and shall conform to any special requirements in section 10 of this specifica-tion. When specified in section 10, the contractor shall furnish the engineer, in writing, a blasting planbefore blasting operations begin.

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(210-VI-NEH, May 2001)

4. Use of excavated materialMethod 1—To the extent they are needed, all suitable material from the specified excavations shall beused in the construction of required permanent earthfill or rockfill. The suitability of material for spe-cific purposes is determined by the engineer. The contractor shall not waste or otherwise dispose ofsuitable excavated material.

Method 2—Suitable material from the specified excavations may be used in the construction of re-quired earthfill or rockfill. The suitability of material for specific purposes is determined by the engineer.

5. Disposal of waste materialsMethod 1—All surplus or unsuitable excavated materials are designated as waste and shall be disposedof at the locations shown on the drawings.

Method 2—All surplus or unsuitable excavated materials are designated as waste and shall be disposedof by the contractor at sites of his own choosing away from the site of the work. The disposal shall be inan environmentally acceptable manner that does not violate local rules and regulations.

6. Excavation limitsExcavations shall comply with OSHA Construction Industry Standards (29CFR Part 1926) Subpart P,Excavations, Trenching, and Shoring. All excavations shall be completed and maintained in a safe andstable condition throughout the total construction phase. Structure and trench excavations shall becompleted to the specified elevations and to the length and width required to safely install, adjust, andremove any forms, bracing, or supports necessary for the installation of the work. Excavations outsidethe lines and limits shown on the drawings or specified herein required to meet safety requirements shallbe the responsibility of the contractor in constructing and maintaining a safe and stable excavation.

7. Borrow excavationWhen the quantities of suitable material obtained from specified excavations are insufficient to con-struct the specified earthfills and earth backfills, additional material shall be obtained from the desig-nated borrow areas. The extent and depth of borrow pits within the limits of the designated borrowareas shall be as specified in section 10 or as approved by the engineer.

Borrow pits shall be excavated and finally dressed to blend with the existing topography and sloped toprevent ponding and to provide drainage.

8. OverexcavationExcavation in rock beyond the specified lines and grades shall be corrected by filling the resulting voidswith portland cement concrete made of materials and mix proportions approved by the engineer. Con-crete that will be exposed to the atmosphere when construction is completed shall meet the require-ments of concrete selected for use under Construction Specification 31, Concrete for Major Structures,or 32, Structure Concrete, as appropriate.

Concrete that will be permanently covered shall contain not less than five bags of cement per cubic yard.The concrete shall be placed and cured as specified by the engineer.

Excavation in earth beyond the specified lines and grades shall be corrected by filling the resulting voidswith approved, compacted earthfill. The exception to this is that if the earth is to become the subgradefor riprap, rockfill, sand or gravel bedding, or drainfill, the voids may be filled with material conformingto the specifications for the riprap, rockfill, bedding, or drainfill. Before correcting an overexcavationcondition, the contractor shall review the planned corrective action with the engineer and obtain ap-proval of the corrective measures.

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(210-VI-NEH, May 2001)

9. Measurement and paymentFor items of work for which specific unit prices are established in the contract, the volume of each typeand class of excavation within the specified pay limits is measured and computed to the nearest cubicyard by the method of average cross-sectional end areas or by methods outlined in section 10 of thisspecification. Regardless of quantities excavated, the measurement for payment is made to the specifiedpay limits except that excavation outside the specified lines and grades directed by the engineer to re-move unsuitable material is included. Excavation required because unsuitable conditions result from thecontractor's improper construction operations, as determined by the engineer, is not included for mea-surement and payment.

Method 1—The pay limits shall be as designated on the drawings.

Method 2—The pay limits shall be defined as follows:

a. The upper limit shall be the original ground surface as it existed before the start of constructionoperations except that where excavation is performed within areas designated for previous exca-vation or earthfill, the upper limit shall be the modified ground surface resulting from the specifiedprevious excavation or earthfill.

b. The lower and lateral limits shall be the neat lines and grades shown on the drawings.

Method 3 —The pay limits shall be defined as follows:


b. The lower and lateral limits shall be the true surface of the completed excavation as directed bythe engineer.

Method 4—The pay limits shall be defined as follows:


b. The lower limit shall be at the bottom surface of the proposed structure.

c. The lateral limits shall be 18 inches outside of the outside surface of the proposed structure orshall be vertical planes 18 inches outside of and parallel to the footings, whichever gives the largerpay quantity, except as provided in d below.

d. For trapezoidal channel linings or similar structures that are to be supported upon the sides of theexcavation without intervening forms, the lateral limits shall be at the underside of the proposedlining or structure.

e. For the purposes of the definitions in b, c, and d, above, any specified bedding or drainfill directlybeneath or beside the structure will be considered to be a part of the structure.

All methods—The following provisions apply to all methods of measurement and payment.

Payment for each type and class of excavation is made at the contract unit price for that type and classof excavation. Such payment will constitute full compensation for all labor, materials, equipment, and allother items necessary and incidental to the performance of the work except that extra payment forbackfilling overexcavation will be made in accordance with the following provisions.

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(210-VI-NEH, May 2001)

Payment for backfilling overexcavation, as specified in section 8 of this specification, is made only if theexcavation outside specified lines and grades is directed by the engineer to remove unsuitable materialand if the unsuitable condition is not a result of the contractor's improper construction operations asdetermined by the engineer.

Compensation for any item of work described in the contract, but not listed in the bid schedule is in-cluded in the payment for the item of work to which it is made subsidiary. Such items and the items towhich they are made subsidiary are identified in section 10 of this specification.


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NRCS-ARKANSAS 21-5 EWP, Wharton Creek


Items of work to be performed in conformance with this specification and the construction details therefore are:

a. Subsidiary Item, Excavation, Common

1) This item shall consist of the common excavation required as shown on the drawings.

2) Suitable material from the specified excavations shall be used in the construction of required earthfill.

3) Disposal of materials shall be done by Method 2 as specified in section 5.

4) No separate payment will be made for Excavation. Compensation for this item will be included in Bid Item 3, Rock Rip Rap, R-300.

23–1(210–VI–NEH, January 2009)

1. ScopeThe work consists of the construction of earth embankments, other earthfills, and earth backfills required by thedrawings and specifications.

Earthfill is composed of natural earth materials that can be placed and compacted by construction equipment oper-ated in a conventional manner.

Earth backfill is composed of natural earth material placed and compacted in confined spaces or adjacent to struc-tures (including pipes) by hand tamping, manually directed power tampers or vibrating plates, or their equivalent.

2. MaterialAll fill material shall be obtained from required excavations and designated borrow areas. The selection, blending,routing, and disposition of material in the various fills shall be subject to approval by the engineer.

Fill materials shall contain no frozen soil, sod, brush, roots, or other perishable material. Rock particles larger than the maximum size specified for each type of fill shall be removed prior to compaction of the fill.

The types of material used in the various fills shall be as listed and described in the specifications and drawings.

3. Foundation preparationFoundations for earthfill shall be stripped to remove vegetation and other unsuitable material or shall be excavatedas specified.

Except as otherwise specified, earth foundation surfaces shall be graded to remove surface irregularities and shall be scarified parallel to the axis of the fill or otherwise acceptably scored and loosened to a minimum depth of 2 inches. The moisture content of the loosened material shall be controlled as specified for the earthfill, and the surface material of the foundation shall be compacted and bonded with the first layer of earthfill as specified for subsequent layers of earthfill.

Earth abutment surfaces shall be free of loose, uncompacted earth in excess of 2 inches in depth normal to the slope and shall be at such a moisture content that the earthfill can be compacted against them to produce a good bond between the fill and the abutments.

Rock foundation and abutment surfaces shall be cleared of all loose material by hand or other effective means and shall be free of standing water when fill is placed upon them. Occasional rock outcrops in earth foundations for earthfill, except in dams and other structures designed to restrain the movement of water, shall not require special treatment if they do not interfere with compaction of the foundation and initial layers of the fill or the bond be-tween the foundation and the fill.

Foundation and abutment surfaces shall be no steeper than one horizontal to one vertical unless otherwise speci-fied. Test pits or other cavities shall be filled with compacted earthfill conforming to the specifications for the earth-fill to be placed upon the foundation.

Construction Specification 23—Earthfill

23–2 (210–VI–NEH, January 2009)

4. PlacementEarthfill shall not be placed until the required excavation and foundation preparation have been completed and thefoundation has been inspected and approved by the engineer. Earthfill shall not be placed upon a frozen surfacenor shall snow, ice, or frozen material be incorporated in the earthfill matrix.

Earthfill shall be placed in approximately horizontal layers. The thickness of each layer before compaction shall not exceed the maximum thickness specified in section 10 or shown on the drawings. Materials placed by dumping in piles or windrows shall be spread uniformly to not more than the specified thickness before being compacted.

Hand compacted earth backfill shall be placed in layers whose thickness before compaction does not exceed the maximum thickness specified for layers of earth backfill compacted by manually directed power tampers.

Earth backfill shall be placed in a manner that prevents damage to the structures and allows the structures to as-sume the loads from the earth backfill gradually and uniformly. The height of the earth backfill adjacent to a struc-ture shall be increased at approximately the same rate on all sides of the structure.

Earthfill and earth backfill in dams, levees, and other structures designed to restrain the movement of water shall be placed to meet the following additional requirements:

(a) The distribution of materials throughout each zone shall be essentially uniform, and the earthfill shall befree from lenses, pockets, streaks, or layers of material differing substantially in texture, moisture con-tent, or gradation from the surrounding material. Zone earthfills shall be constructed concurrently unlessotherwise specified.

(b) The surface of each layer shall be scarified parallel to the axis of the fill to a depth of not less than 2inches before the next layer is placed.

(c) The top surface of embankments shall be maintained approximately level during construction with twoexceptions: A crown or cross-slope of about 2 percent shall be maintained to ensure effective drainage,or as otherwise specified for drainfill or sectional zones.

(d) Dam embankments shall be constructed in continuous layers from abutment to abutment except whereopenings to facilitate construction or to allow the passage of streamflow during construction are specifi-cally authorized in the contract.

(e) Embankments built at different levels as described under (c) or (d) above shall be constructed so thatthe slope of the bonding surfaces between embankment in place and embankment to be placed is notsteeper than 3 feet horizontal to 1 foot vertical. The bonding surface of the embankment in place shall bestripped of all material not meeting the requirements of this specification and shall be scarified, moist-ened, and recompacted when the new earthfill is placed against it. This ensures a good bond with thenew earthfill and obtains the specified moisture content and density at the contact of the inplace and newearthfills.

5. Control of moisture contentDuring placement and compaction of earthfill and earth backfill, the moisture content of the material being placedshall be maintained within the specified range.

The application of water to the earthfill material shall be accomplished at the borrow areas insofar as practicable. Water may be applied by sprinkling the material after placement on the earthfill, if necessary. Uniform moisture distribution shall be obtained by disking.

Material that is too wet when deposited on the earthfill shall either be removed or be dried to the specified mois-ture content prior to compaction.


If the top surface of the preceding layer of compacted earthfill or a foundation or abutment surface in the zone of contact with the earthfill becomes too dry to permit suitable bond, it shall either be removed or scarified and moist-ened by sprinkling to an acceptable moisture content before placement of the next layer of earthfill.

6. CompactionEarthfill—Earthfill shall be compacted according to the following requirements for the class of compaction speci-fied:

Class A compaction—Each layer of earthfill shall be compacted as necessary to provide the density of the earthfill matrix not less than the minimum density specified in Section 10 or identified on the drawings. The earthfill matrix is defined as the portion of the earthfill material finer than the maximum particle size allowed in the reference compaction test method specified (ASTM D698 or ASTM D1557).

Class B compaction—Each layer of earthfill shall be compacted to a mass density not less than the mini-mum density specified.

Class C compaction—Each layer of earthfill shall be compacted by the specified number of passes of the type and weight of roller or other equipment specified or by an approved equivalent method. Each pass shall consist of at least one passage of the roller wheel or drum over the entire surface of the layer.

Earth backfill—Earth backfill adjacent to structures shall be compacted to a density equivalent to that of the sur-rounding inplace earth material or adjacent required earthfill or earth backfill. Compaction shall be accomplished by hand tamping or manually directed power tampers, plate vibrators, walk-behind, miniature, or self-propelled rollers. Unless otherwise specified heavy equipment including backhoe mounted power tampers or vibrating compactors and manually directed vibrating rollers shall not be operated within 3 feet of any structure. Towed or self-propelled vibrating rollers shall not be operated within 5 feet of any structure. Compaction by means of drop weights operating from a crane or hoist is not permitted.

The passage of heavy equipment will not be allowed:

• Overcast-in-placeconduitswithin14-daysafterplacementoftheconcrete

• Overcradledorbeddedprecastconduitswithin7daysafterplacementoftheconcretecradleorbedding

• Overanytypeofconduituntilthebackfillhasbeenplacedabovethetopsurfaceofthestructuretoaheightequal to one-half the clear span width of the structure or pipe or 3 feet, whichever is greater, except as maybe specified in section 10.

Compacting of earth backfill adjacent to structures shall not be started until the concrete has attained the strength specified in section 10 for this purpose. The strength is determined by compression testing of test cylinders cast by the contractor's quality control personnel for this purpose and cured at the work site in the manner specified in ASTM C 31 for determining when a structure may be put into service.

When the required strength of the concrete is not specified as described above, compaction of earth backfill adja-cent to structures shall not be started until the following time intervals have elapsed after placement of the con-crete.

23–4 (210–VI–NEH, January 2009)

Structure Time interval

(days)

Vertical or near-vertical walls with earth loading on one side only 14

Walls backfilled on both sides simultaneously 7

Conduits and spillway risers, cast-in-place (with inside forms in place) 7

Conduits and spillway risers, cast-in-place (inside forms removed) 14

Conduits, pre-cast, cradled 2

Conduits, pre-cast, bedded 1

Cantilever outlet bents (backfilled both sides simultaneously) 3

7. Reworking or removal and replacement of defective earthfillEarthfill placed at densities lower than the specified minimum density or at moisture contents outside the specifiedacceptable range of moisture content or otherwise not conforming to the requirements of the specifications shallbe reworked to meet the requirements or removed and replaced by acceptable earthfill. The replacement earthfilland the foundation, abutment, and earthfill surfaces upon which it is placed shall conform to all requirements ofthis specification for foundation preparation, approval, placement, moisture control, and compaction.

8. TestingDuring the course of the work, the contractor shall perform quality control tests, as applicable, to identify earthfilland earth backfill materials; determine the reference maximum density and optimum moisture content; and docu-ment that the moisture content of material at the time of compaction and the density of earthfill and earth backfillin place conform to the requirements of this specification.

Determining Reference Maximum Density and Optimum Moisture Content—For Class A compaction, the refer-ence maximum density and optimum moisture content shall be determined in accordance with the compaction test and method specified on the drawings or in section 10.

Documenting Specification Conformance—In-place densities of earthfill and earth backfill requiring Class A com-paction shall be measured in accordance with ASTM D1556, D2167, D2937, or D6938. Moisture contents of earthfill and earth backfill at the time of compaction shall be measured in accordance with ASTM D2216, D4643, or D6938. Values of moisture content determined by ASTM D2216 are considered the true value of the soil moisture. Values of moisture content determined by ASTM D4643 or D6938 shall be verified by comparison to values obtained by ASTM D2216. Values of in-place density and moisture content determined by these tests shall be compared to the minimum density and moisture content range specified on the drawings or in section 10.

Correction for Oversize Particles—If the materials to be used for earthfill or earth backfill contain more than 5 percent by dry weight of oversize rock particles (particles larger than those allowed in the specified compaction test and method), corrections for oversize particles shall be made using the appropriate procedures explained in ASTM D4718.

9. Measurement and paymentFor items of work for which specific unit prices are established in the contract, the volume of each type and com-paction class of earthfill and earth backfill within the specified zone boundaries and pay limits is measured andcomputed to the nearest cubic yard by the method of average cross-sectional end areas. Unless otherwise specifiedin section 10, no deduction in volume is made for embedded items, such as, but not limited to, conduits, inlet struc-tures, outlet structures, embankment drains, sand diaphragm and outlet, and their appurtenances.


The pay limits shall be as defined below, with the further provision that earthfill required to fill voids resulting from overexcavation of the foundation, outside the specified lines and grades, will be included in the measurement for payment only under the following conditions:

• Wheresuchoverexcavationisdirectedbytheengineertoremoveunsuitablematerial,and

• Wheretheunsuitableconditionisnotaresultofthecontractor'simproperconstructionoperationsasdeter-mined by the engineer.

Earthfill beyond the specified lines and grades to backfill excavation required for compliance with OSHA require-ments will be considered subsidiary to the earthfill bid item(s).

Method 1—The pay limits shall be as designated on the drawings.

Method 2—The pay limits shall be the measured surface of the foundation when approved for placement of the earthfill and the specified neat lines of the earthfill surface.

Method 3—The pay limits shall be the measured surface of the foundation when approved for placement of the earthfill and the measured surface of the completed earthfill.

Method 4—The pay limits shall be the specified pay limits for excavation and the specified neat lines of the earth-fill surface.

Method 5—The pay limits shall be the specified pay limits for excavation and the measured surface of the com-pleted earthfill.

Method 6—Payment for each type and compaction class of earthfill and earth backfill is made at the contract unit price for that type and compaction class of earthfill. Such payment will constitute full compensation for all labor, material, equipment, and all other items necessary and incidental to the performance of the work.

Method 7—Payment for each type and compaction class of earthfill and earth backfill is made at the contract unit price for that type and compaction class of earthfill. Such payment will constitute full compensation for all labor, material, equipment, and all other items necessary and incidental to the performance of the work except furnish-ing, transporting, and applying water to the foundation and earthfill material. Water applied to the foundation and earthfill material is measured and payment made as specified in Construction Specification 10.

All methods—The following provisions apply to all methods of measurement and payment. Compensation for any item of work described in the contract, but not listed in the bid schedule is included in the payment for the item of work to which it is made subsidiary. Such items and the items to which they are made subsidiary are identified in section 10 of this specification.



Items of work to be performed in conformance with this specification and the construction details therefor are:

a. Bid Item 2, Earthfill, Class C

1) This item consists of the earthfill required to shape the slopes of the streambank as shown on the drawings.

2) Compaction shall be as Class C, as specified in Section 6. Each layer shall be compacted by 2 passes per layer of a crawler type tractor exerting 7.0 psi ground pressure.

3) Measurement and payment shall be made as specified by Method 2 in section 9.



1. Scope

The work shall consist of the construction of rock riprap revetments and blankets, including filter or bedding where specified.

2. MaterialRock riprap shall conform to the requirements of Material Specification 523, Rock for Riprap, or if so specified,shall be obtained from designated sources. It shall be free from dirt, clay, sand, rock fines, and other material notmeeting the required gradation limits.

At least 30 days before rock is delivered from other than designated sources, the contractor shall designate in writ-ing the source from which rock material will be obtained and provide information satisfactory to the contracting officer that the material meets contract requirements. The contractor shall provide the contracting officer's techni-cal representative (COTR) free access to the source for the purpose of obtaining samples for testing. The size and grading of the rock shall be as specified in section 8.

Rock from approved sources shall be excavated, selected, and processed to meet the specified quality and grading requirements at the time the rock is installed.

Based on a specific gravity of 2.65 (typical of limestone and dolomite) and assuming the individual rock is shaped midway between a sphere and a cube, typical size/weight relationships are:

Sieve size of rock

Approx. weightof rock

Weight of test pile

16 inches 300 pounds 6,000 pounds

11 inches 100 pounds 2,000 pounds

6 inches 15 pounds 300 pounds

When specified in Section 8 or when it is necessary to verify the gradation of the rock riprap, a particle size analysis shall be performed in accordance with ASTM D5519, Test Method A or B. The analysis shall be performed at the work site on a test pile of representative rock. The mass of the test pile shall be at least 20 times the mass of the largest rock in the pile.

The results of the test shall be compared to the gradation required for the project. Test pile results that do not meet the construction specifications shall be cause for the rock to be rejected. The test pile that meets contract require-ments shall be left on the job site as a sample for visual comparison. The test pile shall be used as part of the last rock riprap to be placed.

Filter or bedding aggregates when required shall conform to Material Specification 521, Aggregates for Drainfill and Filters, unless otherwise specified. Geotextiles shall conform to Material Specification 592, Geotextile.

3. Subgrade preparationThe subgrade surface on which the rock riprap, filter, bedding, or geotextile is to be placed shall be cut or filled andgraded to the lines and grades shown on the drawings. When fill to subgrade lines is required, it shall consist of ap-proved material and shall conform to the requirements of the specified class of earthfill.

Construction Specification 61—Rock Riprap

61–2 (210-VI-NEH, January 2009)

Rock riprap, filter, bedding, or geotextile shall not be placed until the foundation preparation is completed and the subgrade surface has been inspected and approved.

4. Equipment-placed rock riprapThe rock riprap shall be placed by equipment on the surface and to the depth specified. It shall be installed to thefull course thickness in one operation and in such a manner as to avoid serious displacement of the underlyingmaterial. The rock for riprap shall be delivered and placed in a manner that ensures the riprap in place is reason-ably homogeneous with the larger rocks uniformly distributed and firmly in contact one to another with the smallerrocks and spalls filling the voids between the larger rocks. Some hand placing may be required to provide a neatand uniform surface.

Rock riprap shall be placed in a manner to prevent damage to structures. Hand placing is required as necessary to prevent damage to any new and existing structures.

5. Hand placed rock riprapThe rock riprap shall be placed by hand on the surface and to the depth specified. It shall be securely bedded withthe larger rocks firmly in contact one to another without bridging. Spaces between the larger rocks shall be filledwith smaller rocks and spalls. Smaller rocks shall not be grouped as a substitute for larger rock. Flat slab rock shallbe laid on its vertical edge except where it is laid like paving stone and the thickness of the rock equals the speci-fied depth of the riprap course.

6. Filter or beddingWhen the contract specifies filter, bedding, or geotextile beneath the rock riprap, the designated material shall beplaced on the prepared subgrade surface as specified. Compaction of filter or bedding aggregate is not required, butthe surface of such material shall be finished reasonably smooth and free of mounds, dips, or windrows.

7. Measurement and paymentMethod 1—For items of work for which specific unit prices are established in the contract, the quantity of eachtype of rock riprap placed within the specified limits is computed to the nearest ton by actual weight. The volumeof each type of filter or bedding aggregate is measured within the specified limits and computed to the nearestcubic yard by the method of average cross-sectional end areas. For each load of rock riprap placed as specified, thecontractor shall furnish to the COTR a statement-of-delivery ticket showing the weight to the nearest 0.1 ton.

Payment is made at the contract unit price for each type of rock riprap, filter, or bedding. Such payment is consid-ered full compensation for completion of the work.

Method 2—For items of work for which specific unit prices are established in the contract, the quantity of each type of rock riprap placed within the specified limits is computed to the nearest 0.1 ton by actual weight. The quantity of each type of filter or bedding aggregate delivered and placed within the specified limits is computed to the nearest 0.1 ton. For each load of rock riprap placed as specified, the contractor shall furnish to the engineer a statement-of-delivery ticket showing the weight to the nearest 0.1 ton. For each load of filter or bedding aggregate, the contractor shall furnish to the COTR a statement-of-delivery ticket showing the weight to the nearest 0.1 ton.


Method 3—For items of work for which specific unit prices are established by the contract, the volume of each type of rock riprap and filter or bedding aggregate is measured within the specified limits and computed to the nearest cubic yard by the method of average cross-sectional end areas.

61–3(210-VI-NEH, January 2009)


Method 4—For items of work for which specific unit prices are established by the contract, the volume of each type of rock riprap, including filter and bedding aggregate, is measured within the specified limits and computed to the nearest cubic yard by the method of average cross-sectional end areas.

Payment is made at the contract unit price for each type of rock riprap, including filter and bedding. Such payment is considered full compensation for completion of the work.

Method 5—For items of work for which specific unit prices are established by the contract, the quantity of each type of rock riprap placed within the specified limits is computed to the nearest ton by actual weight. For each load of rock for riprap placed as specified, the contractor shall furnish to the COTR a statement-of-delivery ticket show-ing the weight to the nearest 0.1 ton.

Payment is made at the contract unit price for each type of rock riprap, including geotextile used for filter or bed-ding. Such payment is considered full compensation for completion of the work.

Method 6—For items of work for which specific unit prices are established by the contract, the volume of each type of rock riprap is measured within the specified limits and computed to the nearest cubic yard by the method of average cross-sectional end areas.

Payment is made at the contract unit price for each type of rock riprap, including geotextile used for filter or bed-ding. Such payment is considered full compensation for completion of the work.

All methods—The following provision applies to all methods of measurement and payment. Compensation for any item of work described in the contract, but not listed in the bid schedule, is included in the payment for the item of work to which it is made subsidiary. Such items and the items to which they are made subsidiary are identi-fied in section 8.

No separate payment is made for testing the gradation of the test pile. Compensation for testing is included in the appropriate bid item for riprap.


NRCS-AR 3/2010 (61-4) South Fourche Site 1

8. Items of Work and Construction Details

Items of work to be performed in conformance with this specification and construction detailstherefore are:

a. Bid Item 3, Riprap, Rock

1) This item shall consist of furnishing and placing riprap at the location shown on thedrawings. The gradation will be R300 or greater, as defined by ASTM D6092.

2) The riprap shall be reasonably well graded and placed in such a manner as to provide astable fill with no unfilled voids. The riprap shall be Rock Type 1 as specified inMaterial Specification 523. If existing onsite riprap can be salvaged, it shall meet theField durability inspection of Material Specification 523.

3) The rock shall be Equipment-placed as specified in Section 4.

4) When rock is obtained from sources designated below or when satisfactory test datafor other sources are furnished by or for the Engineer, a material certificate will not berequired. The following sources have been approved for use subject to meeting thespecified gradation. Other sources may be approved by the Engineer.

Jeffrey Stone Company: Gore, OK (Chism Quarry) Black Rock Limestone Products: Black Rock, AR McClinton-Anchor Co.: West Fork, AR McClinton-Anchor Co.: Valley Springs, AR Arkhola Sand and Gravel Co.: Van Buren, AR Arkhola Sand and Gravel Co.: Jenny Lind, AR Freshour Stone Co.: Greenbrier, AR Big Rock Stone and Materials Co.: Little Rock, AR (Arch Street Pike

Quarry) Ozark Materials Co.: Ozark, AR (Franklin County Quarry) W. R. Nelson Quarry: located on highway 80 approximately five miles

west of Waldron, AR Martin-Marietta, Jones Mill Quarry: Malvern, AR Granite Mountain Quarry: Little Rock, AR Boorhem-Fields: Black Rock, AR Quarry Mountain Ranch: Flippin, AR (Johnny Wilson, Owner) Weyerhaeuser Quarry: Sevier County, AR Sweet Home Quarry: Sweet Home, AR R and R Quarry: Berryville, AR Meridian: Hatton Quarry: Hatton, AR Ben Hogan Co.: Russellville, AR

NRCS-AR (61-5) EWP, Wharton Creek

5) Items of work subsidiary to this bid item are: a. Excavation, Common, as specified in Construction Specification 21.

6) Meaurement and Payment will be by Method 5 as specified in Section 7, exceptcompensation for geotextile will be paid in Bid Item 4, Geotextile, Nonwoven, Class 1.

(210-VI-NEH, May 2001) 95–1

Construction Specification 95—Geotextile

1. ScopeThis work consists of furnishing all material, equipment, and labor necessary for the installation ofgeotextiles.

2. QualityGeotextiles shall conform to the requirements of Material Specification 592 and this specification.

3. StorageBefore use, the geotextile shall be stored in a clean, dry location out of direct sunlight, not subject toextremes of either hot or cold temperatures, and with the manufacturer's protective cover undisturbed.Receiving, storage, and handling at the job site shall be in accordance with the requirements listed inASTM D 4873.

4. Surface preparationThe surface on which the geotextile is to be placed shall be graded to the neat lines and grades as shownon the drawings. It shall be reasonably smooth and free of loose rock and clods, holes, depressions,projections, muddy conditions, and standing or flowing water (unless otherwise specified in section 7 ofthis specification).

5. PlacementBefore the geotextile is placed, the soil surface will be reviewed for quality assurance of the design andconstruction. The geotextile shall be placed on the approved prepared surface at the locations and inaccordance with the details shown on the drawings and specified in section 7 of this specification. Itshall be unrolled along the placement area and loosely laid, without stretching, in such a manner that itconforms to the surface irregularities when material or gabions are placed on or against it. Thegeotextile may be folded and overlapped to permit proper placement in designated area(s).

Method 1—The geotextile shall be joined by machine sewing using thread material meeting the chemi-cal requirements for the geotextile fibers or yarn. The sewn overlap shall be 6 inches, and the sewingshall consist of two parallel stitched rows at a spacing of about 1 inch and shall not cross (except for anyrequired re-stitching). The stitching shall be a lock-type stitch. Each row of stitching shall be located aminimum of 2 inches from the geotextile edge. The seam type and sewing machine to be used shall pro-duce a seam strength, in the specified geotextile, that provides a minimum of 90 percent of the tensilestrength in the weakest principal direction of the geotextile being used, when tested in accordance withASTM D 4884. The seams may be factory or field sewn.

The geotextile shall be temporarily secured during placement of overlying material to prevent slippage,folding, wrinkling, or other displacement of the geotextile. Unless otherwise specified, methods of secur-ing shall not cause punctures, tears, or other openings to be formed in the geotextile.

Method 2—The geotextile shall be joined by overlapping a minimum of 18 inches (unless otherwisespecified) and secured against the underlying foundation material. Securing pins, approved and providedby the geotextile manufacturer, shall be placed along the edge of the panel or roll material to adequatelyhold it in place during installation. Pins shall be steel or fiberglass formed as a U, L, or T shape or con-tain "ears" to prevent total penetration through the geotextile. Steel washers shall be provided on all butthe U-shaped pins. The upstream or upslope geotextile shall overlap the abutting downslope geotextile.At vertical laps, securing pins shall be inserted through the bottom layers along a line through approxi-mately the mid-point of the overlap. At horizontal laps and across slope labs, securing shall be inserted

(210-VI-NEH, May 2001)

through the bottom layer only. Securing pins shall be placed along a line about 2 inches in from the edgeof the placed geotextile at intervals not to exceed 12 feet unless otherwise specified. Additional pinsshall be installed as necessary and where appropriate to prevent any undue slippage or movement of thegeotextile. The use of securing pins will be held to the minimum necessary. Pins are to remain in placeunless otherwise specified.

Should the geotextile be torn or punctured, or the overlaps or sewn joint disturbed, as evidenced byvisible geotextile damage, subgrade pumping, intrusion, or grade distortion, the backfill around thedamaged or displaced area shall be removed and restored to the original approved condition. The repairshall consist of a patch of the same type of geotextile being used and overlaying the existing geotextile.When the geotextile seams are required to be sewn, the overlay patch shall extend a minimum of 1 footbeyond the edge of any damaged area and joined by sewing as required for the original geotextile exceptthat the sewing shall be a minimum of 6 inches from the edge of the damaged geotextile. Geotextilepanels joined by overlap shall have the patch extend a minimum of 2 feet from the edge of any damagedarea.

Geotextile shall be placed in accordance with the following applicable specification according to the useindicated in section 7:

Slope protection—The geotextile shall not be placed until it can be anchored and protectedwith the specified covering within 48 hours or protected from exposure to ultraviolet light. Inno case shall material be dropped on uncovered geotextile from a height of more than 3 feet.

Subsurface drains—The geotextile shall not be placed until drainfill or other material can beused to provide cover within the same working day. Drainfill material shall be placed in amanner that prevents damage to the geotextile. In no case shall material be dropped on uncov-ered geotextile from a height of more than 5 feet.

Road stabilization—The geotextile shall be unrolled in a direction parallel to the roadwaycenterline in a loose manner permitting conformation to the surface irregularities when theroadway fill material is placed on its surface. In no case shall material be dropped on uncov-ered geotextile from a height of more than 5 feet. Unless otherwise specified, the minimumoverlap of geotextile panels joined without sewing shall be 24 inches. The geotextile may betemporarily secured with pins recommended or provided by the manufacturer, but they shallbe removed before the permanent covering material is placed.

6. Measurement and paymentMethod 1—For items of work for which specific unit prices are established in the contract, the quantityof geotextile for each type placed within the specified limits is determined to the nearest specified unitby measurements of the covered surfaces only, disregarding that required for anchorage, seams, andoverlaps. Payment is made at the contract unit price. Such payment constitutes full compensation for thecompletion of the work.

Method 2—For items of work for which specific unit prices are established in the contract, the quantityof geotextile for each type placed with the specified limits is determined to the nearest specified unit bycomputing the area of the actual roll size or partial roll size installed. The computed area will include theamount required for overlap, seams, and anchorage as specified. Payment is made at the contract unitprice. Such payment constitutes full compensation for the completion of the work.

Method 3—For items of work for which specific lump sum prices are established in the contract, thequantity of geotextile is not measured for payment. Payment for geotextiles is made at the contract lumpsum price and constitutes full compensation for the completion of the work.

95–2

(210-VI-NEH, May 2001)

All methods—The following provisions apply to all methods of measurement and payment. Compensa-tion for any item of work described in the contract, but not listed in the bid schedule, is included in thepayment for the item of work to which it is made subsidiary. Such items and the items to which they aremade subsidiary are identified in section 7 of this specification.


95–3

NRCS-AR 95-4 EWP, Wharton Creek

7. Items of Work and Construction Details

The items of work to be performed in conformance with this specification and construction details therefore are: a. Bid Item 4, Geotextile, Nonwoven, Class I

1) This item shall consist of furnishing and installing geotextile between rock riprap and

adjacent earth materials (either in-situ or earth fill), as shown on the drawings.

2) The geotextile shall be Nonwoven, Class I, as specified in Table 2 of Material Specification 592.

3) Placement shall be in accordance with Method 2 in section 5, and in accordance with

the requirements for Slope Protection as specified in Section 5.

4) Geotextile extending outside the rock riprap limits shall be folded such that the fabric is not exposed.

5) Measurement and payment will be by method 1 as specified in Section 6.

MATERIAL SPECIFICATIONS

Part 642

National Engineering Handbook

National Standard Material

Specifications

Chapter 3

(210-VI-NEH, November 2005)

1. Scope

This specification covers the quality of rock to beused in the construction of rock riprap.

2. Quality

Individual rock fragments shall be dense, sound,and free from cracks, seams, and other defectsconducive to accelerated weathering. Except asotherwise specified, the rock fragments shall beangular to subrounded. The least dimension of anindividual rock fragment shall be not less thanone-third the greatest dimension of the fragment.ASTM D 4992 provides guidance on selectingrock from a source.

Except as otherwise provided, the rock shall betested and shall have the following properties:Rock type 1

• Bulk specific gravity (saturated sur-

face-dry basis)—Not less than 2.5 whentested in accordance with ASTM C 127 onsamples prepared as described for sound-ness testing.

• Absorption—Not more than 2 percentwhen tested in accordance with ASTM C 127on samples prepared as described for sound-ness testing.

• Soundness—The weight loss in 5 cyclesshall not be more than 10 percent whensodium sulfate is used or more than 15 per-cent when magnesium sulfate is used.

Rock type 2


face-dry basis)—Not less that 2.5 whentested in accordance with ASTM C 127 onsamples prepared as described for sound-ness testing.


• Soundness—The weight loss in 5 cyclesshall be not more than 20 percent whensodium sulfate is used or more than 25percent when magnesium sulfate is used.

Rock type 3


face-dry basis)—Not less than 2.3 whentested in accordance with ASTM C 127 onsamples prepared as described for sound-ness testing.


• Soundness—The weight loss in 5 cyclesshall be not more than 20 percent whensodium sulfate is used or more than 25percent when magnesium sulfate is used.

3. Methods of soundness testing

Rock cube soundness—The sodium or magne-sium sulfate soundness test for all rock types (1,2, or 3) shall be performed on a test sample of5,000 ± 300 grams of rock fragments, reasonablyuniform in size and cubical in shape, and weigh-ing, after sampling, about 100 grams each. Theyshall be obtained from rock samples that arerepresentative of the total rock mass, as noted inASTM D 4992, and that have been sawed intoslabs as described in ASTM D 5121. The samplesshall further be reduced in size by sawing theslabs into cubical blocks. The thickness of theslabs and the size of the sawed fragments shall bedetermined by the size of the available test appa-ratus and as necessary to provide, after sawing,the approximate 100-gram samples. The cubesshall undergo five cycles of soundness testing inaccordance with ASTM C 88.

Internal defects may cause some of the cubes tobreak during the sawing process or during theinitial soaking period. Do not test any of the

Material Specification 523—Rock for Riprap

523–1

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Specifications

Chapter 3


cubes that break during this preparatory process.Such breakage, including an approximation ofthe percentage of cubes that break, shall benoted in the test report.

After the sample has been dried followingcompletion of the final test cycle and washed toremove the sodium sulfate or magnesium sulfate,the loss of weight shall be determined by sub-tracting from the original weight of the samplethe final weight of all fragments that have notbroken into three or more fragments.

The test report shall show the percentage loss ofthe weight and the results of the qualitative ex-amination.

Rock slab soundness—When specified, therock shall also be tested in accordance withASTM D 5240. Deterioration of more than 25percent of the number of blocks shall be cause

for rejection of rock from this source. Rock shallalso meet the requirements for average percentweight loss stated below.

• For projects located north of the Number 20Freeze-Thaw Severity Index Isoline (fig.523–1). Unless otherwise specified, theaverage percent weight loss for Rock Type 1shall not exceed 20 percent when sodiumsulfate is used or 25 percent when magne-sium sulfate is used. For Rock Types 2 and 3,the average percent weight loss shall notexceed 25 percent for sodium sulfate sound-ness or 30 percent for magnesium sulfatesoundness.

• For projects located south of the Number 20Freeze-Thaw Severity Index Isoline, unlessotherwise specified, the average percentweight loss for Rock Type 1 shall not exceed30 percent when sodium sulfate is used or38 percent when magnesium sulfate is used.

Material Specification 523 Rock for Riprap (continued)

523–2

Figure 523–1 Number 20 freeze-thaw severity index isoline (map approximates the map in ASTM D 5312)

2020

Part 642



Specifications

Chapter 3


For Rock Types 2 and 3, the average percentweight loss shall not exceed 38 percent forsodium sulfate soundness or 45 percent formagnesium sulfate soundness.

4. Field durability inspection

Rock that fails to meet the material requirementsstated above (if specified), may be accepted onlyif similar rock from the same source has beendemonstrated to be sound after 5 years or moreof service under conditions of weather, wettingand drying, and erosive forces similar to thoseanticipated for the rock to be installed under thisspecification.

A rock source may be rejected if the rock fromthat source deteriorates in 3 to 5 years undersimilar use and exposure conditions expected forthe rock to be installed under this specification,even though it meets the testing requirementsstated above.

Deterioration is defined as the loss of more thanone-quarter of the original rock volume, or se-vere cracking that would cause a block to split.Measurements of deterioration are taken fromlinear or surface area particle counts to deter-mine the percentage of deteriorated blocks.Deterioration of more than 25 percent of thepieces shall be cause for rejection of rock fromthe source.

5. Grading

The rock shall conform to the specified gradinglimits after it has been placed within the matrixof the rock riprap. Grading tests shall be per-formed, as necessary, according to ASTM D 5519,Method A, B, or C, as applicable.

Material Specification 523 Rock for Riprap (continued)

523–3

Chapter 3 National Standard Material Specifications Part 642 National Engineering Handbook

(210-VI-NEH, Amend. 57, May 2011) 592–1

Material Specification 592—Geotextile

1. Scope This specification covers the quality of geotextile, including geotextile for temporary silt fence.

2. General Requirements Fibers (threads and yarns) used in the manufacture of geotextile must consist of synthetic polymers composed of a minimum of 85 percent by weight polypropylenes, polyesters, polyamides, polyethylene, polyolefins, or polyvinylidene-chlorides. They must be formed into a stable network of filaments or yarns retaining dimensional stability relative to each other. The geotextile must be free of defects, such as holes, tears, and abrasions. The geotextile must be free of any chemical treatment or coating that significantly reduces its porosity. Fibers must contain stabilizers, inhibitors, or both to enhance resistance to ultraviolet light. Geotextile other than for temporary silt fence must conform to the requirements in tables 592-1 or 592-2, as applicable. Geotextile for temporary silt fence must conform to the requirements in table 592-3.

Thread used for factory or field sewing must be of a color contrasting to the color of the fabric and made of high-strength polypropylene, polyester, or polyamide thread. Thread must be as resistant to ultraviolet light as the geotextile being sewn.

3. Classification Geotextiles are classified based on the method used to place the threads or yarns forming the fabric. The geotextiles will be grouped into woven and nonwoven types. Geotextile for temporary silt fence may be either woven or nonwoven. Slit film woven geotextile may not be used except for temporary silt fence.

Woven.—Fabrics formed by the uniform and regular interweaving of the threads or yarns in two directions. Woven fabrics must be manufactured from monofilament yarn formed into a uniform pattern with distinct and measurable openings, retaining their position relative to each other. The edges of fabric must be selvedged or otherwise finished to prevent the outer yarn from unraveling.

Nonwoven.—Fabrics formed by a random placement of threads in a mat and bonded by needle punching, heat bonding, or resin bonding. Nonwoven fabrics must be manufactured from individual fibers formed into a random pattern with distinct but variable small openings, retaining their position relative to each other when bonded by needle punching, heat bonding, or resin bonding. The use of heat- or resin-bonded nonwovens is restricted as specified in note 2 of table 592-2.

4. Sampling and Testing The geotextile must meet the specified requirements (tables 592-1, 592-2, or 592-3, as applicable) for the product type shown on the label. Product properties as listed in the latest edition of the "Specifiers Guide," Geosynthetics (Industrial Fabrics Association International, 1801 County Road B, West Roseville, MN 55113-4061 or at http://www.geosindex.com), and that represent minimum average roll values, are acceptable documentation that the product style meets the requirements of these specifications.

For products that do not appear in the above directory or do not have minimum average roll values listed, typical test data from the identified production run of the geotextile is required for each of the specified tests (see table 592-1, 592-2, or 592-3, as applicable) as covered under clause AGAR 452.236-76.

5. Shipping and Storage The geotextile must be shipped and transported in rolls wrapped with a cover for protection from moisture, dust, dirt, debris, and ultraviolet light. The cover must be maintained undisturbed to the maximum extent possible before placement.

Each roll of geotextile must be labeled or tagged to clearly identify the brand, class, and the individual production run in accordance with ASTM D 4873.


(210-VI-NEH, Amend. 57, May 2011) 592–2

Table 592-1 Requirements for Woven Geotextiles 1/

Property Test Method Units Class I Class II Class III Class IV Grab Tensile Strength ASTM D 4632 pounds

247 min. 180 min. 180 min. 315 min.

Elongation at Failure ASTM D 4632 percent

< 50 <50 <50 <50

Trapezoidal Tear Strength ASTM D 4533 pounds

90 min. 67 min. 67 min. 112 min.

Puncture Strength ASTM D 6241 pounds

495 min. 371 min. 371 min. 618 min.

Ultraviolet Stability (Retained Strength)

ASTM D 4355 percent

50 min. 50 min. 50 min. 50 min.

Permittivity ASTM D 4491 sec-1

0.7 min. or as specified

Apparent Opening Size (AOS) 2/

ASTM D 4751 mm 0.22 max. or as specified

Percent Open Area (POA) USACE CWO-02215

percent 4 min.

1/ All values are minimum average roll values (MARV) in the weakest principal direction, unless otherwise noted. 2/ Maximum average roll value. Note: CWO is a USACE reference.

Table 592-2 Requirements for Nonwoven Geotextiles 1/

Property Test Method Units Class I 2/ Class II 2/ Class III 2/ Class IV 2/ Grab Tensile Strength ASTM D 4632 pounds

202 min. 157 min. 112 min. 202 min.

Elongation at Failure ASTM D 4632 percent

50 min. 50 min. 50 min. 50 min.

Trapezoidal Tear Strength ASTM D 4533 pounds

79 min. 56 min. 40 min. 79 min.

Puncture Strength ASTM D 6241 pounds

433 min. 309 min. 223 min. 433 min.


ASTM D 4355 percent

50 min. 50 min. 50 min. 50 min.


0.7 min. or as specified


ASTM D 4751 mm 0.22 max. or as specified

1/ All values are minimum average roll values (MARV) in the weakest principal direction, unless otherwise noted. 2/ Needle punched geotextiles may be used for all classes. Heat-bonded or resin-bonded geotextiles may be used for classes III and IV only. They are particularly

well suited to class IV. 3/ Maximum average roll value.


(210-VI-NEH, Amend. 57, May 2011) 592–3

Table 592-3 Requirements for Temporary Silt Fence 1/

Property

Test Method

Units

Requirements, Supported Silt Fence 2/

Requirements, Unsupported Silt Fence 2/

Woven Geotextile (Elongation < 50% 3/)

Nonwoven Geotextile (Elongation > 50% 3/)

Maximum Post Spacing

ft

4 6.5 4

Grab Tensile Strength ASTM D 4632 pounds

Machine Direction

90 124

X-Machine Direction

90 101


0.05 0.05


ASTM D 4751 mm 0.60 0.60


ASTM D 4335 % 70% after 500 hours of exposure

70% after 500 hours of exposure

1/ All values are minimum average roll values (MARV) in the weakest principal direction, unless otherwise noted. 2/ Silt fence support must consist of 14-gage steel wire with a mesh spacing of 6 inches each way or prefabricated polymeric mesh of equivalent strength. 3/ As measured in accordance with ASTM D 4632. 4/ Maximum average roll value.

LITTLE OSAGE STREAMBANK STABILIZATION

NATURAL RESOURCES CONSERVATION SERVICE

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UNITED STATES DEPARTMENT OF AGRICULTURE

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PROJECT SITE

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LITTLE OSAGE CREEK

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LOCATED IN BENTON COUNTY, AR

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IN COOPERATION WITH

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changes to the plans must be in writing, and must be approved by the

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or liable for unauthorized changes to or uses of these plans. All

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The engineer preparing these plans will not be responsible for

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%%UCAUTION

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USDA

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PROJECT LOCATION

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CHICOT

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ASHLEY

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DREW

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CLEVELAND

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ARKANSAS

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DESHA

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BRADLEY

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CALHOUN

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UNION

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OUACHITA

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DALLAS

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GRANT

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COLUMBIA

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LAFAYETTE

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MILLER

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HEMPSTEAD

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HOWARD

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SEVIER

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LITTLE RIVER

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PIKE

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MONTGOMERY

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POLK

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SCOTT

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YELL

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PERRY

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SALINE

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GARLAND

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HOT SPRING

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PULASKI

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LONOKE

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PRAIRIE

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MONROE

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PHILLIPS

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LEE

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ST. FRANCIS

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CROSS

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CRITTENDEN

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MISSISSIPPI

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CRAIGHEAD

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POINSETT

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JACKSON

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LAWRENCE

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GREENE

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CLAY

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RANDOLPH

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FULTON

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IZARD

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INDEPENDENCE

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SHARP

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BAXTER

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MARION

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BOONE

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CARROLL

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BENTON

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WOODRUFF

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WHITE

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CLEBURNE

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STONE

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VAN BUREN

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CONWAY

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FAULKNER

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POPE

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JOHNSON

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FRANKLIN

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CRAWFORD

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WASHINGTON

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MADISON

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NEWTON

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SEARCY

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LOGAN

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SEBASTIAN

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CLARK

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NEVADA

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JEFFERSON

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LINCOLN

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RFF

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MJO

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CHECKED BY:

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APPROVED BY:

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DESIGNED BY:

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SURVEYED BY:

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DRAWN BY:

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BY:

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DESCRIPTION

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SHEET NO.:

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1 of 6

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CONTRACT #

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7/14

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DATE:

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PROJECT NO.

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DATE

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REVISED

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COVER SHEET

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LITTLE OSAGE

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SHEET INDEX 1.COVER SHEET COVER SHEET 2.SITE PLAN VIEW SITE PLAN VIEW 3.ROCK SLOPE TYPICAL SECTION ROCK SLOPE TYPICAL SECTION 4.ROCK KEYWAY DETAIL FOR UPSTREAM ROCK KEYWAY DETAIL FOR UPSTREAM & DOWNSTREAM ENDS OF RIPRAP 5.ROCK RIPRAP DITCH AND CHUTE ROCK RIPRAP DITCH AND CHUTE 6.SITE PLAN DETAILSSITE PLAN DETAILS

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NOTE: CONTRACTOR IS RESPONSIBLE FOR CONTRACTOR IS RESPONSIBLE FOR CONTACTING ARKANSAS ONE-CALL BY CALLING 1-800-482-8998 OR 811 TO VERIFY LOCATION OF ALL UTILITIES PRIOR TO BEGINNING ANY WORK.

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STREAMBANK STAB.

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AN AGENCY OF THE

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preparer of these plans prior to contruction.

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CAVE SPRINGS

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HIGHWAY 112

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Northing : 13175991.7340' Easting : 1267114.7750' Elevation : 1136.54'

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BENCHMARK:

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Rock Sizes D = 24 in D = 16 in D = 10 in

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100

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50

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min

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%%USITE PLAN VIEW

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NORTH

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NORTH

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NORTH

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NORTH

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SCALE 1" = 100'

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Checked

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2 6

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RFF 7/14

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MJO 7/14

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LITTLE OSAGE

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STREAM BANK STABILIZATION

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BENTON COUNTY, ARKANSAS

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MILL DAM ROAD

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LITTLE OSAGE CREEK

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BEGIN ROCK SLOPE

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TYPICAL SECTION STA. 0+49

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BRIDGE BACKSLOPE

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STA. 0+00 TO STA. 0+49

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PLACE RIPRAP BLANKET (2 FT. THICK)

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FILL AND SLOPE ERRODED BANK

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TO APPROX. ORIGINAL TOP BANK LINE

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END ROCK SLOPE TYP. SECTION AT

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STA. 2+75

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AROUND BRIDGE PILINGS AND

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(IF SUITABLE, USE STREAM BANK MATERIAL

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DEPOSITED FROM ORIGINAL BANK)

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ROCK RIPRAP DITCH

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DIRECTION OF FLOW

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SIDE CHANNEL

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BANK KEY (INTO EXISTING

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NATURAL GROUND)

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AND CHUTE

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BEGIN ROCK CHUTE

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A MINIMUM 10 FT. FROM

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ERODED BANK LINE

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NATURAL GROUND)

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RELOCATE EXISTING CHANNEL (RED)

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TO PRESTORM FLOW PATH (BLUE)

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(IF SUITABLE, USE AS FILL

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FOR NEW TOP BANK)

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Geotech. Fabric

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Toe Elevation Varies (See table)

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Streambed

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4ft Min.

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Notes: 1.Rip Rap will have a D50 (half rock greater than) = 16", and shall be placed Rip Rap will have a D50 (half rock greater than) = 16", and shall be placed with a minimum thickness of 24". 2.The base of Rip-Rap will be reinforced using a 4ft by 4ft toe counter sunk The base of Rip-Rap will be reinforced using a 4ft by 4ft toe counter sunk into the existing stream bed. Use larger sized rock in toe to maximum extent practicable. If depth is limited by ledge rock then base will be keyed into the fixed grade of the bank such that the toe is supported by a 4' by 4' base. See Construction Specification AR-61 Rock RipRap. 3.All rock will be placed on geotextile fabric. Fabric will be secured by a header All rock will be placed on geotextile fabric. Fabric will be secured by a header trench at the upper end of slope as shown. Use only verticle seams, and overlap 18 inches minimum. Use stapels to secure fabric to slope. See Construction Specification AR-95 Geotextile. The filter fabric shall meet the reqirements in material specification 592 Geotextile, Table 2 or 2, Class I. 4.All disturbed slopes will be protected from erosion with Geotextile and RipRap All disturbed slopes will be protected from erosion with Geotextile and RipRap as stated above.

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Existing Bank

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Gradation: D = 24 in D = 20 in D = 16 in D = 10 in

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100 75 50 30

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1

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1.5

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ESTIMATED QUANTITIES . Fill/Excavation ±1,010 Cu.Yds.RipRap (D50 = 16 in) ±1,425 TonsFilter Fabric. ±950 Sq.Yds.Live Plantings 1.0 AC. 1.0 AC.

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LITTLE OSAGE

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STREAMBANK STABILIZATION

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ROCK SLOPE TYPICAL SECTION

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NOT TO SCALE

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RFF 7/14

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MJO 7/14

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2:1 Slope

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Fill Material (Use material from excavation)

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Rip Rap shall have an R-300 gradation from ASTM D6092 D50 = 16"

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1

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2.5

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2' Min.

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1.5

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1

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4'

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24''MIN

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END KEYWAY

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END OF RIPRAP

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B

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B

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SS

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1.5:1

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SS

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1.5:1

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SS

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1.5:1

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BOTTOM KEYWAY

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CAHNNEL FLOW

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TOP OF RIPRAP

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BANK SLOPE

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SS

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1.5:1

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SS

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1.5:1

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A

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NON-WOVEN

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GEOTEXTILE

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BOTTOM OF

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END KEYWAY

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CHANNEL BOTTOM

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ROCK KEYWAY DETAIL FOR UPSTREAM AND DOWNSTREAM END OF RIPRAP

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NOT TO SCALE

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1.5

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1

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EDGE OF CHANNEL BOTTOM

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TOP OF RIPRAP & GROUNDLINE

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4'

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24''

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SECTION B-B

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NOT TO SCALE

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SECTION A-A

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NOT TO SCALE

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RFF 7/14

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4 6

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A

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LITTLE OSAGE

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%%UCHUTE PROFILE

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(NOT TO SCALE)

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%%UCHUTE ANCHOR DETAIL

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(NOT TO SCALE)

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C

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L

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K

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K

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1

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SEE CHUTE

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ANCHOR DETAIL

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TOP OF ROCK

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CHUTE APRON

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ELEV.

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NON-WOVEN GEOTEXTILE

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TOP OF ROCK

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CHUTE OUTLET

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ELEV.

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SIDE SLOPE OF CHUTE

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(SEE SECTIONS)

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1.0

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FT

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ROCK RIPRAP

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ROCK RIPRAP

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2 FT

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FT

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FT

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10

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FT

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ROCK RIPRAP

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FT

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(NOT TO SCALE)

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%%UTYPICAL SECTION K-K

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1

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FT

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FT

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GROUND LINE

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1

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ROCK RIPRAP

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FT

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(NOT TO SCALE)

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%%UTYPICAL SECTION J-J

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1

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FT

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FT

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GROUND LINE

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1

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J

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J

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4

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4

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2

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4

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FT

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2

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3

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%%UROCK RIPRAP DITCH AND CHUTE

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LITTLE OSAGE

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STREAMBANK STABILIZATION

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5 6

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RFF 7/14

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MJO 7/14

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4

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BEGIN ROCK CHUTE A MINIMUM

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10 FEET FROM ERODED BANK LINE

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3

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2

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2

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Northing : 13175991.7340' Easting : 1267114.7750' Elevation : 1136.54'

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BENCHMARK:

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%%USITE PLAN DETAILS

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NORTH

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SCALE 1" = 100'

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6 6

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RFF 7/14

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MJO 7/14

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LITTLE OSAGE

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MILL DAM ROAD

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LITTLE OSAGE CREEK

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DIRECTION OF FLOW

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BEGIN ROCK SLOPE

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TYPICAL SECTION STA. 0+49

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BRIDGE BACKSLOPE

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STA. 0+00 TO STA. 0+49

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PLACE RIPRAP BLANKET (2 FT. THICK)

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FILL AND SLOPE ERRODED BANK

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TO APPROX. ORIGINAL TOP BANK LINE

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END ROCK SLOPE TYP. SECTION AT

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STA. 2+75

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AROUND BRIDGE PILINGS AND

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(IF SUITABLE, USE STREAM BANK

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MATERIAL DEPOSITED FROM

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ROCK RIPRAP DITCH

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SIDE CHANNEL

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NATURAL GROUND)

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AND CHUTE

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BEGIN ROCK CHUTE

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A MINIMUM 10 FT. FROM

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ERODED BANK LINE

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NATURAL GROUND)

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RELOCATE EXISTING CHANNEL (RED)

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TO PRESTORM FLOW PATH (BLUE)

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(IF SUITABLE, USE AS FILL

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FOR NEW TOP BANK)

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ORIGINAL BANK)

Bid Schedule DSR#05-007-17-1

LITTLE OSAGE CREEK BANK STABLILIZATION EWP

BENTON CO., AR

Item Work or Material Spec. No. Quantity Unit

Unit Amount Amount

1. Mobilization & Demobilization 8 1 LS XXXXXXX __________ 2. Earth Fill, Class C 23C 950 CY __________ __________ 3. Rock Rip Rap, R-300 61 2,015 TN __________ __________ 4. Geotextile 95 1,715 SY __________ __________ 5. Seeding, Sprigging and Mulching 6 1.0 AC __________ __________ TOTAL AMOUNT