Attachment 1 Combined Specs.pdf

NRCS – 11/24

WV – EWP – SALTLICK AND SUGAR CREEK

WV - EWP 2024

SALTLICK AND SUGAR CREEK BRAXTON COUNTY, WEST VIRGINIA

DSR 54-02-24-5085-009, 54-02-24-5085-010

STREAMBANK STABILIZATION AND OBSTRUCTION REMOVAL

LIST OF SPECIFICATIONS

CONSTRUCTION SPECIFICATIONS

NO. DATE

4 6/24 5 6/24 6 6/24 8 6/24 9 6/24 11 6/24 21 6/24

TITLE

Channel Clearing and Snagging Pollution Control Seeding, Sprigging and Mulching Mobilization and Demobilization Traffic Control Removal of Water Excavation

23 6/24 Earthfill 24 6/24 Drainfill 25 6/24 Rockfill 34 6/24 Steel Reinforcement 45 6/24 Plastic Pipe 62 6/24 Grouted Rock Riprap 94 6/24 Contractor Quality Control 95 6/24 Geotextile

MATERIAL SPECIFICATIONS

NO. DATE TITLE

521 2/22 Aggregates for Drainfill and Filters 522 2/22 Aggregates for Portland Cement Concrete 523 4/22 Rock for Riprap 531 2/22 Portland Cement 533 2/22 Chemical Admixtures for Concrete 534 5/23 Concrete Curing Compound 539 7/22 Steel Reinforcement 547 4/22 Plastic Pipe 592 4/22 Geotextile

210 H 642 CS 4 (June 2024) 1

Construction Specification 4 — Channel Clearing and Snagging

Title 210 - Engineering Part 642 – Specifications for Construction Contracts Subpart B – National Construction Specifications June 2024

A. Scope

1. The work consists of clearing designated areas by the removal and disposal of trees, logs, stumps, shrubs, brush, and rubbish and the shaping of the channel.

B. Protection of Existing Vegetation

1. Protect trees and other vegetation designated to remain undisturbed from damage throughout the duration of the construction period. Any damages resulting from the contractor’s operations or neglect must be repaired by the contractor.

2. Earthfill, stockpiling of materials, vehicle or equipment parking, and excessive foot or vehicle traffic must not be allowed within the drip line of vegetation designated to remain in place. Vegetation damaged by any of these or similar actions must be replaced with viable vegetation of the same species, similar condition, and like size unless otherwise approved by the contracting officer.

3. Any cuts, skins, scrapes, or bruises to the bark of the vegetation must be carefully trimmed and local nursery-accepted procedures must be used to seal damaged bark.

4. Any limbs or branches 0.5 inch or larger in diameter that are broken, severed, or otherwise seriously damaged during construction must be cut off at the base of the damaged limb or branch, flush with the adjacent limb or tree trunk.

5. All roots 1 inch or larger in diameter that are cut, broken, or otherwise severed during channel shaping must have the ends smoothly cut perpendicular to the root. Roots exposed during channel shaping operations must be covered with moist soil as soon as possible to prevent them from drying out.

C. Marking

1. The limits of the areas to be cleared and shaped are marked by stakes, flags, paint, tree markings, or other suitable methods or as specified in Section H of this specification or will be shown on the drawings. Trees to remain standing, undisturbed, and uninjured are designated by special markings.

D. Clearing

1. Trees and other vegetation marked for clearing must be cut off as near the ground surface as conventional tools and equipment normally permit. All trees not

210 H 642 CS 4 (June 2024) 2 marked for preservation and all snags, logs, brush, shrubs, stumps, and rubbish must be cleared from within the area limits identified.

E. Disposal

1. Dispose of all woody material, vegetation, and rubbish resulting from clearing from designated areas at the locations and in a manner shown on the drawings or as specified in Section H of this specification.

F. Shaping

1. Shape the channel bottom and side slopes as shown on the drawings. The resulting shaped channel surface must be reasonably smooth. Remove and dispose material excavated during the channel-shaping operation from the channel as specified in Section H of this specification.

G. Measurement and Payment

1. Method 1. For items of work for which specific unit prices are established by the contract, the designated cleared and shaped area is measured and area is determined to the nearest 0.1 acre. Payment for clearing and shaping is made at the contract unit price for the item and constitutes full compensation for all labor, equipment, tools, applicable permits and associated fees for burning and disposal of refuse, and all other items necessary and incidental to the satisfactory completion of the work.

2. Method 2. For items of work for which specific unit prices are established by the contract, the length of the cleared and shaped channel designated is measured to the nearest 100 feet. Payment for clearing and shaping is made at the contract unit price for the item and constitutes full compensation for all labor, equipment, tools, applicable permits and associated fees for burning and disposal of refuse, and all other items necessary and incidental to the satisfactory performance of the work.

3. Method 3. For items of work for which specific unit prices are established by the contract, the cleared and shaped areas is measured, and area is determined to the nearest 0.1 acre. The designated cleared and shaped areas is determined from the measured width at representative sections and the distance between the sections.

Payment for clearing and shaping is made at the contract unit price for the item and constitutes full compensation for all labor, equipment, tools, applicable permits and associated fees for burning and disposal of refuse, and all other items necessary and incidental to the satisfactory completion of the work.

4. Method 4. For items of work for which specific lump sum prices are established by the contract, the extent of clearing and shaping is not measured or determined for payment. Payment for clearing and shaping is made at the contract lump sum price for the item and constitutes full compensation for all labor, equipment, tools, applicable permits and associated fees for burning and disposal of refuse, and all other items necessary and incidental to the satisfactory completion of the work.

5. 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

210 H 642 CS 4 (June 2024) 3 it is made subsidiary. Such items and items to which they have been made subsidiary are identified in Section H of this specification.

WV – EWP – SALTLICK AND SUGAR CREEK 4-4

H. Items of work and construction details

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

a. Channel Clearing and Shaping, General Requirements

1) In Section C, Marking. The construction drawings will designate the ingress and egress and construction limits.

2) In Section D, Clearing. It is not intended that live trees, shrubs, brush be removed, unless designated otherwise in the specifications or drawings or designated by the Contracting Officer or Contracting Officer’s Representative.

3) In Section E, Disposal.

i. Burnable materials may be burned in accordance with local and state regulations, if allowed by the Contractor Officer.

ii. Non-burnable materials and materials from regulated burning areas, or all materials if burning is not permitted by the Contracting Officer, shall be disposed of offsite and outside of the 100-year floodplain limits. Disposal shall be in accordance with all local, state, and federal regulations. The locations of offsite disposal areas and the manner of disposal will require the approval of the Contractor Officer.

4) In Section F, Shaping.

i. All deposition removal, channel shaping shall be excavated and filled to the lines and grades designated in the drawings. Deposition removal shall include, but not limited to, the removal of silt, sand, gravel, and boulders. All excavation shall be conducted in a manner which will not restrict flow in the existing channel and shall conform to Construction Specification 21, Excavation. All fill shall be conducted in a manner which will not restrict flow in the existing channel and shall conform to Construction Specification 23, Earthfill and Construction Specification 25, Rockfill.

ii. Soil and rock materials from required excavations shall be used to reconstruct the channel as shown on the drawings, as necessary. Debris, rubbish, trees, brush, or any other foreign material shall not be used for channel shaping and shall not be buried in the shaped channel. The reconstructed streambanks shall be shaped to facilitate positive drainage to the channel.

iii. Excess soil and rock materials from the channel shaping shall be disposed of at the locations shown on the drawings and as approved by the Contractor Officer. If no disposal area is shown on the drawings, the Contractor shall be responsible for obtaining an offsite disposal area. The disposal area must be located out of the 100-year floodplain. The offsite disposal area must be graded to allow positive drainage and be seeded and mulched as required by Construction Specification 6, Seeding, Sprigging, and Mulching and as required by the property owner. The Contractor shall provide a copy of the written agreement with the property owner to the Contractor Officer.

iv. The manner and location of disposal will require approval by the Contractor Officer.

Disposal shall be in accordance with all local, state, and federal regulations.

WV – EWP – SALTLICK AND SUGAR CREEK 4-5

5) Erosion and Pollution Control.

i. Perform construction operations in accordance with Construction Specification 5, Pollution Control. Operate construction equipment from the channel bank and use only hand-operated equipment in the channel wherever possible.

b. Bid Item 1, Channel Clearing and Shaping

1) This item shall consist of all work required to clear designated areas by the removal and disposal of trees, logs, stumps, shrubs, brush, and rubbish, and the shaping of the channel as defined in the construction specifications and shown on the construction drawings.

2) In Section G, Measurement and Payment, Method 2 shall apply.

210 H 642 CS 5 (June 2024) 1

Construction Specification 5 — Pollution Control Title 210 – Engineering Part 642 – Specifications for Construction Contracts Subpart B – National Construction Specifications June 2024

A. Scope

1. The work consists of installing measures or performing work to control erosion and minimize the production of sediment and other pollutants to water and air from construction activities.

2. The following BioPreferred® product categories are applicable to this specification:

a. Mulch and compost materials

b. Erosion control materials

c. Fertilizers

d. Dust suppressants

e. Agricultural spray adjuvants

B. Material

1. Silt fence conform to the requirement of Materials Specification 592, Geotextile.

All other material furnished meet the requirements of the material specifications listed in Section G of this specification.

2. Erosion and Sediment Control Measures and Works. The measures and works includes, but are not limited to, the following:

a. Staging of Earthwork Activities. Scheduling the excavation and moving of soil materials to minimize the size of areas disturbed and unprotected from erosion for the shortest reasonable time.

b. Seeding. Seeding to protect disturbed areas occur as soon as reasonably possible following completion of that earthwork activity.

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

d. Diversions. Diversions to divert water from work areas and to collect water from work areas for treatment and safe disposition. These are temporary and must be removed and the area restored to its near-original condition when the diversions are no longer required or when permanent measures are installed.

e. Stream Crossings. Culverts or bridges where equipment must cross streams.

These are temporary must and be removed and the area restored to its near-original condition when the crossings are no longer required or when permanent measures are installed.

f. Sediment Basins. Sediment basins for collecting, settling, and eliminating sediment from eroding areas that impact properties and streams below the

210 H 642 CS 5 (June 2024) 2 construction sites. These basins are temporary and must be removed and the area restored to its original condition when they are no longer required or when permanent measures are installed.

g. Sediment Filters. Straw bale filters or geotextile sediment fences for trapping sediment from areas with limited runoff. Sediment filters must be properly anchored to prevent erosion under or around them. Silt fences must be installed and maintained in accordance with ASTM D6462. These filters are temporary and must be removed and the area restored to its original condition when they are no longer required or when permanent measures are installed.

h. Waterways. Waterways for the safe disposal of runoff from fields, diversions, and other structures or measures. These works are temporary and must be removed and the area restored to its original condition when they are no longer required or when permanent measures are installed.

i. Other. Additional protection measures as specified in Section G of this specification or required by the federal, state, or local government.

C. Chemical Pollution

1. The contractor must provide watertight tanks or barrels or construct a sump sealed with plastic sheets to collect and temporarily contain chemical pollutants, such as drained lubricating or transmission fluids, grease, soaps, concrete mixer wash water, or asphalt, produced as a by-product from the construction activities.

Dispose of pollutants in accordance with appropriate state and federal regulations.

At the completion of the construction work, remove tanks, barrels, and sumps and restore the area to its original condition as specified in Section H of this specification. Sump removal must be conducted without causing pollution.

2. Sanitary facilities, such as chemical toilets, and septic tanks must not be located next to live streams, wells, or springs. They must be located at a distance sufficient to prevent contamination of any water source. At the completion of construction activities, facilities must be disposed of without causing pollution as specified in Section H of this specification.

D. Air Pollution

1. The burning of brush or slash and the disposal of other materials must adhere to state and local regulations.

2. Fire prevention measures must be taken to prevent the start or spreading of wildfires that may result from project activities. Firebreaks or guards must be constructed and maintained at locations shown on the drawings.

3. All public access or haul roads used by the contractor during construction of the project must be sprinkled or otherwise treated to fully suppress dust. All dust control methods must ensure safe construction operations at all times. If chemical dust suppressants are applied, the material must be a commercially available product specifically designed for dust suppression, and the application must follow the manufacturer’s requirements and recommendations. A copy of the product data sheet and manufacturer’s recommended application procedures must be provided to the engineer 5 working days before the first application.

210 H 642 CS 5 (June 2024) 3

E. Maintenance, Removal, and Restoration

1. All pollution-control measures and temporary works must be adequately maintained in a functional condition for the duration of the construction period.

Remove all temporary measures and restore the site to near-original condition.

F. Measurement and Payment

1. Method 1. For items of work for which specific unit prices are established in the contract, each item is measured to the nearest unit applicable. Payment for each item is made at the contract unit price for that item. For water or chemical suppressant items used for dust control for which items of work are established in Section H of this specification, measurement for payment will not include water or chemical suppressants that are used inappropriately or excessively. Such payment will constitute full compensation for the completion of the work.

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

3. Method 3. For items of work for which lump-sum prices are established in the contract, payment will be prorated and provided in equal amounts on each monthly progress payment estimate. The number of months used for prorating must be the number estimated to complete the work as outlined in the contractor’s approved construction schedule. The final month’s prorate amount will be provided with the final contract payment. Payment as described will constitute full compensation for completion of the work.

4. 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 H of this specification.

WV – EWP – SALTLICK AND SUGAR CREEK 5-4

G. Items of work and construction details

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

a. Subsidiary Item, Pollution Control

(1) The Contractor shall exercise precaution throughout the duration of the Contract to prevent the pollution of rivers and streams. Chemicals, fuels, lubricants, raw sewage, and other harmful wastes shall not be discharged into or alongside any river, stream, or natural or man-made waterway leading thereto. Materials identified as chemical pollutants in Section C of this specification shall be removed from the site and disposed of in compliance with applicable state and federal regulations. Any chemical pollutant spills shall be reported to the State Center for Pollution, Toxic Chemical and Oil Spills hotline at 1-(800)-642-3074.

(2) The Contractor shall schedule clearing and grubbing operations in a manner which will minimize the amount of erodible surface soil exposed at any time. Areas shall not be cleared and grubbed until immediately prior to actual need or use of the area.

(3) Pollution control measures shall be installed in a timely manner to protect against erosion from areas to be exposed by excavation and fill operations.

(4) Equipment shall not be operated in live streams except as may be required to construct stream bank stabilization measures and temporary structures located in live streams. Frequent fording of live streams with construction equipment will not be permitted.

Temporary bridges, culverts, or other structures shall be installed wherever an appreciable number of stream crossings are necessary.

(5) Protective cover shall be applied to disturbed areas as soon as work has been completed in the area, and/or whenever work in the disturbed area will be delayed or stopped more than five

(5) continuous days. Areas to be provided with protective cover will be staked and/or flagged in the field by the Contracting Officer’s Representative. Protective cover shall be applied to disturbed areas by mulching with straw. Materials and workmanship for providing protective cover shall be in accordance with Construction Specification 6, Seeding, Sprigging and Mulching.

Straw mulch shall be applied uniformly to disturbed areas at the rate of 2 tons per acre.

(6) In Section F, Measurement and Payment, shall not apply. No separate payment shall be made for Pollution Control. Compensation for this item is subsidiary to and included in the payment for Bid Item 4, Grouted Rock Riprap, Construction Specification 62.

210 H 642 CS 6 (June 2024) 1

Construction Specification 6 — Seeding, Sprigging, and Mulching

Title 210 - Engineering Part 642 – Specifications for Construction Contracts Subpart B – National Construction Specifications June 2024

A. Scope

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

2. The following BioPreferred® product categories are applicable to this specification:

a. Mulch and compost materials

b. Erosion control materials

c. Fertilizers

d. Agricultural spray adjuvants

B. Material

1. Seed.

a. All seed must conform to the current rules and regulations of the state where it is being used and must be from the latest crop available. It must meet or exceed the standard for purity and germination listed in Section G.

b. Seed must be labeled in accordance with the state laws and the U.S.

Department of Agriculture rules and regulations under the Federal Seed Act in effect on the date of invitations for bids. Bag tag figures are evidence of purity and germination. No seed will be accepted with a test date of more than 9 months before the delivery date to the site.

c. Seed that has become wet, moldy, or otherwise damaged in transit or storage will not be accepted. The percent of noxious weed seed allowable must be as defined in the current state laws relating to agricultural seeds. Each type of seed must be delivered in separate sealed containers and fully tagged unless an exception is granted in writing by the contracting officer.

2. Fertilizer. Unless otherwise specified, the fertilizer must be a commercial-grade fertilizer. It must meet the standard for grade and quality specified by state law.

Where fertilizer is furnished from bulk storage, the contractor must furnish a supplier’s certification of analysis and weight. When required by the contract, a representative sample of the fertilizer must be furnished to the contracting officer for chemical analysis.

210 H 642 CS 6 (June 2024) 2

3. Inoculants. The inoculant for treating legume seeds must be a pure culture of nitrogen-fixing bacteria prepared specifically for the species and must not be used later than the date indicated on the container or as otherwise specified. A mixing medium, as recommended by the manufacturer, must be used to bond the inoculant to the seed. Two times the amount of the inoculant recommended by the manufacturer must be used (unless seed is applied using a hydraulic seeder; then four times the amount must be used). Seed must be sown within 24 hours of treatment and must not remain in the hydraulic seeder longer than 4 hours.

4. Lime and Other Soil Amendments. Lime must consist of standard ground agriculture limestone or approved equivalent. Standard ground agriculture limestone is defined as ground limestone meeting current requirements of the state’s Department of Agriculture. Other soil amendments must meet quality criteria and application requirements specified in Section G.

5. Mulch Tackifiers. Asphalt emulsion tackifiers must conform to the requirements of ASTM D977, Specification for Emulsified Asphalt. The emulsified asphalt may be rapid setting, medium setting, or slow setting. Non-asphaltic tackifiers required because of environmental considerations must be as specified in Section G.

6. Straw Mulch Material. Straw mulch must consist of wheat, barley, oat or rye straw, hay, grass cut from native grasses, or other plants as specified in Section G.

The mulch material must be air-dried reasonably light in color and must not be musty, moldy, caked, or otherwise of low quality. The use of mulch that contains noxious weeds is not permitted. The contractor must provide a method satisfactory to the contracting officer for determining weight of mulch furnished.

7. Other Mulch Materials. Mulching materials, such as wood cellulose fiber mulch, mulch tackifiers, synthetic fiber mulch, netting, and mesh may be required for specialized locations and conditions. These materials, when specified, must be accompanied by the manufacturer’s recommendations for methods of application.

C. Seeding Mixtures, Sod, Sprigs, and Dates of Planting

1. The application rate per acre for seed mixtures, sprigs, or sod and the date of seeding or planting must be as shown on the plans or as specified in Section G.

D. Seedbed Preparation and Treatment

1. Dress areas to be treated to a smooth, firm surface. On sites where equipment can operate on slopes safely, adequately loosen and smooth the seedbed (4 to 6 inches deep). Depending on soil and moisture conditions, disking, cultipacking, or both, may be necessary to properly prepare a seedbed. Where equipment cannot operate safely, prepare the seedbed by methods like scarifying, providing a roughened soil surface by hand so that broadcast seed will remain in place.

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

210 H 642 CS 6 (June 2024) 3

3. Rocks larger than 6 inches in diameter, trash, weeds, and other debris that will interfere with seeding or maintenance operations must be removed or disposed of as specified in Section G.

4. Discontinue seedbed preparation when soil moisture conditions are not suitable for the preparation of a satisfactory seedbed as determined by the responsible engineer.

E. Seeding, Sprigging, Fertilizing, Mulching, and Stabilizing

1. Perform all seeding or sprigging operations in such a manner that the seed or sprigs are applied in the specified quantities uniformly in the designated areas.

The method and rate of seed application must be as specified in Section G. Unless otherwise specified, seeding or sprigging must be accomplished within 2 days after final grading is completed and approved.

2. Apply fertilizer, lime, and other soil amendments as specified in Section G. When specified, the fertilizer and soil amendments must be thoroughly incorporated into the soil immediately following surface application.

3. The rate, amount, and kind of mulching or mesh must be as specified in Section G. Apply mulches uniformly to the designated areas. They must be applied to areas seeded not later than 2 working days after seeding has been performed.

Stabilize straw mulch material within 24 hours of application using a mulch crimper or equivalent anchoring tool or by a suitable tackifier. When the mulch crimper or equivalent anchoring tool is used, it must have straight blades and be the type manufactured expressly for and capable of firmly punching the mulch into the soil. Where the equipment can be safely operated, it must be operated on the contour. Use hand methods where equipment cannot safely operate to perform the work required.

4. Apply the tackifier uniformly over the mulch material at the specified rate or inject it into the mulch material as it is being applied. Stabilizing materials like mesh or netting must be applied smoothly but loosely on the designated areas.

The edges of these materials must be buried or securely anchored using spikes or staples as specified in Section G.

5. The contractor must maintain the mesh or netting areas until all work under the contract has been completed and accepted. Maintenance must consist of the repair of areas damaged by water erosion, wind, fire, or other causes. Such areas must be repaired to reestablish the intended condition and to the design lines and grades required by the contract. The areas must be re-fertilized, reseeded, and re-mulched before the new application of the mesh or netting.

F. Measurement and Payment

1. Method 1. For items of work for which specific unit prices are established in the contract, each area treated is measured as specified in Section G and area is calculated to the nearest 0.1 acre. Payment for treatment is made at the contract unit price for the designated treatment, which will constitute full compensation for completion of the work.

210 H 642 CS 6 (June 2024) 4

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

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

3. Method 3. For items of work for which lump-sum prices are established in the contract, payment is made as the work proceeds. Progress payments will be determined as specified in Section G. Payment of the lump-sum contract price will constitute full compensation for completion of the work.

4. 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 G.

NRCS-11/24

WV – EWP – SALTLICK AND SUGAR CREEK 6-5

G. Items of work and construction details

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

a. Bid Item 2, Seeding and Mulching

(1) This item shall consist of seeding and mulching to permanent cover all disturbed areas due to work associated with the construction activities.

(2) No permanent seeding shall be done between October 1 and December 1 unless otherwise approved by the Contracting Officer.

(3) The approved lines and grades for permanent seeding at the time of permanent seeding shall be maintained during and after the seeding and mulching operation. Any area that has been damaged or had part or all of the seeding material removed by any means shall be repaired before acceptance will be made. The area to be repaired shall be filled and/or graded as needed to bring it back to neat lines, fertilized, seedbed prepared, and then seeded and mulched at the specified rates.

(4) Lime shall be applied at an application rate of 2 tons per acre.

(5) The following minimum amounts of fertilizer shall be applied per acre prior to seeding:

a. Nitrogen (N) 40 lbs.

Phosphoric Acid (P2O5) 80 lbs.

Potash (K2O) 80 lbs.

b. The required application can be achieved by applying fertilizer having an analysis of 10- 20-20 at the rate of 400 pounds per acre or 9 pounds per 1000 square feet.

(6) Seedbed Preparation:

a. Lime and fertilizer shall be applied prior to final seedbed preparation.

b. Seeding shall be accomplished immediately after achieving final grade. Seedbed preparation shall only be required on compacted, polished, or freshly cut soil surface.

Where special seedbed preparation is required, the hardened soil shall be loosened to a depth of 1 ½ inches; either by equipment or manual methods.

(7) Seed:

a. Each seed species shall comply with the West Virginia Department of Agriculture’s standards for purity and germination. Unless otherwise directed by the Contracting Officer’s Representative, the seed mixtures and application rates are:

Seed Rate, lb/ac.

Bluegrass 8 Kentucky 31 Tall Fescue 10 Annual Ryegrass 15 Red Fescue 5 Perennial Ryegrass 5

NRCS-11/24

WV – EWP – SALTLICK AND SUGAR CREEK 6-6

b. When seeding is performed between April 15 – August 1 or December 1 – March 1, the specified rates of seed per acre shall be increased by 50 percent.

(8) Mulch material shall be wheat, oat or rye straw only. Mulch shall be applied uniformly over all seeded areas at the specified rate per acre. Application shall be within 24 hours after seeding. A mechanical blower may be used to apply the mulch. Application rates and material requirements shall be in accordance with the following table:

Time Period vs. Mulching Requirements for Revegetation of Construction Sites

Time Period Suitability Mulch Material Rate/Acre

March 1-April 15 or August 1-October 1

Best seeding periods Small grain straw 1 2 tons

April 15-August 1 High Risk Period Small grain straw 1 2 ½ tons

October 1-Dec. 1 Do not seed Small grain straw 1 2 tons

Dec. 1-March 1 Good seeding period. Small grain straw 1 2 ½ tons

1 Small grain straw shall consist of wheat, oat, or rye straw.

Erosion control matting shall be used in place of straw mulch in areas 3H:1V or steeper.

Erosion control matting shall be a commercially prepared composite turf reinforcement mat containing a 70 percent straw and 30 percent coconut fiber matrix incorporated into an extended temporary control mat with biodegradable netting, minimum weight of 10.5 oz/square yard, rated for 2:1 or steeper slopes, and 2.02 lbs./sf unvegetated shear stress.

(9) In Section F, Measurement and Payment, Method 1 shall apply.

210 H 642 CS 8 (June 2024) 1

Construction Specification 8 — Mobilization and Demobilization

Title 210 – Engineering Part 642 – Specifications for Construction Contracts Subpart B – National Construction Specifications June 2024

A. Scope

1. The work consists of the mobilization and demobilization of the contractor’s forces and equipment necessary for performing the work required under the contract. It does not include mobilization and demobilization for specific items of work for which payment is provided elsewhere in the contract. Mobilization will not be considered as work in fulfilling the contract requirements for commencement of work.

B. Equipment and Material

1. Mobilization includes all activities and associated costs for transportation of contractor’s personnel, equipment, and operating supplies to the site;

establishment of offices, buildings, and other necessary general facilities for the contractor’s operations at the site; premiums paid for performance and payment bonds including coinsurance and reinsurance agreements as applicable; and other items specified in Section D of this specification.

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

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

C. Payment

1. Payment will be made as the work proceeds after presentation of paid invoices or documentation of direct costs by the contractor showing specific mobilization and demobilization costs and supporting evidence of the charges of suppliers, subcontractors, and others. When the total of such payments is less than 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 compensation for completion of the work.

210 H 642 CS 8 (June 2024) 2

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

WV – EWP – SALTLICK AND SUGAR CREEK 8-3

D. Items of work and construction details

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

a. Bid Item 3, Mobilization and Demobilization

(1) This item shall consist of mobilization and demobilization of all work forces, materials, and equipment necessary to complete the work.

(2) The contractor will be required to provide a portable toilet at the site.

(3) The Contractor shall contact MISS Utility before work at the site begins. The Contractor shall provide the MISS Utility confirmation number for the site to the Contracting Officer’s Representative before commencement of the work.

(4) Prior to construction the Contractor shall verify that all utilities have been disconnected at the described site.

(5) The Contractor may use a portable sign for public notice and for posting documents as required by the permits and this contract. Signage may be prepared to accommodate frequent revisions for use at multiple sites.

(6) In Section C, Payment shall apply upon approval of completed work by the Contracting Officer’s Representative.

210 H 642 CS 9 (June 2024) 1

Construction Specification 9 — Traffic Control

Title 210 – Engineering Part 642 – Specifications Subpart B – National Construction Specifications June 2024

A. Scope

1. The work consists of establishing traffic control and maintaining safe, convenient use of public roads and right of way.

B. Traffic and Access

1. The contractor’s operations must cause no unnecessary inconvenience to the public. Maintain the public right of way at all times unless interruption is authorized by proper local authority. Contractor’s authorized closing or detour plans must be provided to the engineer for approval.

2. Provide and maintain safe and adequate access to all public protection devices and to all critical utility-control locations. Facility access must be continuous and unobstructed unless otherwise approved.

C. Storage of Equipment and Material in Public Streets

1. Construction materials and equipment must not be stored or parked on public streets, roads, or highways. During any material or equipment loading or unloading activities that may temporarily interfere with traffic, an acceptable detour must be provided for the duration of the activity. Any associated expense for this activity is the responsibility of the contractor.

2. Excavated material, including suitable material that is intended for adjacent trench backfill or other earth backfill as specified in Section E of this specification, must not be stored on public streets, roads, or highways that remain in service for the public. Any waiver of this requirement must be obtained from the proper local authority and approved by the engineer. All excess and unsuitable material must be removed from the site as soon as possible. Remove any spillage from roadways before they are used by the public.

D. Street Closures, Detours, and Barricades

1. The contractor must comply with the requirements of all applicable, responsible units of government for closure of any street, road, or highway. The contractor must provide the required barriers, guards, lights, signs, temporary bridges, and flaggers and inform the public of any detours and construction hazards by the most suitable means available, such as local newspapers or radio stations. The contractor is also responsible for compliance with additional public safety requirements that may arise during construction. The contractor must furnish, 210 H 642 CS 9 (June 2024) 2 install, and, upon completion of the work, promptly remove all signs, warning devices, and other materials used in the performance of this work.

2. Unless otherwise specified, the contractor must notify, in writing, the fire chief, police chief, county sheriff, state patrol, schools that operate school buses, or any other government official as appropriate no less than 7 days before closing, partly closing, or reopening any street, road, or highway.

3. Unless otherwise specified, the contractor must furnish to the engineer a written plan showing the proposed method of signing, barricading for traffic control, and safety for street detours and closures.

4. All temporary detours will be maintained to ensure use of public rights of way is provided in a safe manner. This may include dust control, grading, and graveling as required in Section G of this specification.

E. General and Specific References

1. All signs, signals, barricades, use of flaggers, and other traffic control and public safety devices must conform to the general requirements set forth in the Manual of Uniform Traffic Control Devices (MUTCD) and the latest edition of Standard Highway Signs and Standard Alphabets for Highway Signs and OSHA Construction Industry Standards (29 CFR Part 1926), Subpart G, Signs, Signals, and Barricades, unless otherwise specified in Section G of this specification.

F. Measurement and Payment

1. For items of work for which specific lump-sum prices are established in the contract, payment for the work is made at the contract lump-sum price. Progress payments will be made based upon the percentage of estimated total time that traffic control will be required unless otherwise specified in Section G of this specification. Payment will constitute full compensation for all flaggers, labor, materials, equipment, and other items necessary and incidental to completion of the work.

2. Compensation for any item of work described in the contract but not listed in the bid schedule will be included in the payment for the item of work to which it is made subsidiary. Such items and items to which they are made subsidiary are identified in Section G of this specification.

WV – EWP –SALTLICK AND SUGAR CREEK 9-3

G. Items of work and construction details

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

a. Subsidiary Item, Traffic Control

(1) Temporary blockages of the road are permitted with proper flagging provisions. A minimum of one lane of traffic shall be maintained at all times, with two lane traffic restored after work hours.

(2) Roadways will need to be kept clean of dirt, debris, and any other obstructions to allow for the safe passage of vehicles.

(3) In Section F, Measurement and Payment, shall not apply. No separate payment shall be made for Traffic Control. Compensation for this item is subsidiary to and included in the payment for Bid Item 4, Grouted Rock Riprap, Construction Specification 62.

210 H 642 CS 11 (June 2024) 1

Construction Specification 11 — Removal of Water

Tile 210 – Engineering Part 642 – Specifications for Construction Contracts Subpart B – National Construction Specifications June 2024

A. Scope

1. The work consists of the removal of surface water and ground water as necessary to perform the construction required by the contract in accordance with the specifications. It must include: (1) constructing, installing, building, and maintaining all necessary temporary water containment facilities, channels, and diversions; (2) furnishing, installing, and operating all necessary pumps, piping, and other facilities and equipment; and (3) removing all such temporary works and equipment after their intended function is no longer required.

B. Diverting Surface Water

1. The contractor must install, maintain, and operate all cofferdams, channels, flumes, sumps, and all other temporary diversion and protective works needed to divert streamflow and other surface water through or around the construction site.

Control of surface water must be continuous during the period that damage to construction work could occur. Unless otherwise specified or approved, the diversion outlet must be into the same drainageway that the water would have reached before being diverted.

2. The contractor must furnish the contracting officer, in writing, a proposed plan for diverting surface water before beginning any construction activities for which a diversion is required, unless waived in Section H of this specification. Acceptance of this plan or the waiving of the plan requirement will not relieve the contractor of the responsibilities related to this activity during the process of completing the work as specified.

C. Dewatering the Construction Site

1. Foundations, cutoff trenches, and all other parts of the construction site must be dewatered and kept free of standing water and muddy conditions as necessary for the proper execution of the work. The contractor must furnish, install, operate, and maintain all drains, sumps, pumps, casings, well points, and all other equipment required to properly dewater the site as specified. Dewatering systems that cause a loss of soil fines from the foundation areas will not be permitted.

2. The contractor must furnish the contracting officer, in writing, a proposed plan for dewatering before commencing with any construction activity for which dewatering may be required unless waived in Section H of this specification.

210 H 642 CS 11 (June 2024) 2

Acceptance of this plan or the waiving of the plan requirement will not relieve the contractor of the responsibilities for completing the specified work.

D. Dewatering Borrow Areas

1. The contractor must maintain all borrow areas free of surface water or otherwise provide for timely and effective removal of surface and subsurface water that accumulates within the borrow area unless waived in Section H of this specification. Process borrow material as necessary to achieve proper and uniform moisture content at the time of placement.

2. If pumping to dewater borrow areas is included as a bid item of work in the bid schedule, equip each pump discharge pipe with a water meter. The meter must be such that the measured quantity of water is accurate within 3 percent of the true quantity. The contractor must provide necessary support to perform accuracy tests of the water meter when requested by the contracting officer.

E. Erosion and Pollution Control

1. Removal of water from the construction site, including the borrow areas, must be accomplished so that erosion and the transporting of sediment and other pollutants are minimized. Dewatering activities must be accomplished in a manner that the water table water quality is not altered. Pollution control activities must not conflict with the requirements of Construction Specification 5, Pollution Control, if it is a part of this contract.

F. Removal of Temporary Works

1. When temporary works are no longer needed, the contractor must remove and return the area to a condition similar to that which existed before construction.

Areas where temporary works were located must be graded for sightly appearance and proper functioning and access to the installed works of improvement and may not obstruct natural surface waterflows. The contractor must exercise extreme care during the removal stages to minimize the loss of soil sediment and debris that was trapped during construction.

2. Pipes, casings, and any other material used to dewater the site must be removed from temporary wells. Fill the wells to ground level with clean gravel or other suitable material approved by the contracting officer. The contractor must exercise extreme care to prevent pollution of the ground water by these actions.

G. Measurement and Payment

1. Method 1.

a. Items of work listed in the bid schedule for removal of water, diverting surface water, and dewatering construction sites and borrow areas are paid for at the contract lump-sum prices. Such payment will constitute full compensation for all labor, equipment, tools, and all other items necessary and incidental to the completion of the work.

2. Method 2.

210 H 642 CS 11 (June 2024) 3

a. Items of work listed in the bid schedule for removal of water, diverting surface water, dewatering construction sites, and dewatering borrow areas are paid for at the contract lump-sum prices. Such payment will constitute full compensation for furnishing, installing, operating, and maintaining the necessary trenches, drains, sumps, pumps, piping, and for all labor, equipment, tools, and all other items necessary and incidental to the completion of the work. The exception is that additional payment for pumping to dewater borrow areas and the removal of water will be made as described in the following paragraph.

b. If pumping to dewater borrow areas is a contract bid item, payment is made at the contract unit price, which must be the price per 1,000 gallons shown in the bid schedule. Such payment will constitute full compensation for pumping only. Compensation for equipment, preparation, and other costs associated with pumping is included in the lump-sum payment for removal of water or the lump-sum payment for dewatering the borrow areas. Payment is made only for pumping that is necessary to dewater borrow areas that cannot be effectively drained by gravity or that must have the water table lowered to be usable as a suitable borrow source. Pumping for other purposes will not be included for payment under this item.

3. 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 contract line item to which it is made subsidiary. Such items and the items to which they are made subsidiary are identified in Section H of this specification.

WV – EWP –SALTLICK AND SUGAR CREEK 11-4

H. Items of work and construction details

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

a. Subsidiary Item, Removal of Water

(1) This item shall include all costs that are required for providing all materials, equipment, labor, and services necessary to divert surface waters and dewater the work areas as required to perform the work during the contract.

(2) Submittal of written plans for diverting surface waters and dewatering the site are not required.

(3) In Section G, Measurement and Payment, shall not apply. No separate payment shall be made for Removal of Water. Compensation for this item is subsidiary to and included in the payment for Bid Item 4, Grouted Rock Riprap, Construction Specification 62.

210 H 642 CS 21 (June 2024) 1

Construction Specification 21 — Excavation

Title 210 –…