Att J-1_Tech Specs - Horseshoe Rec Area Paving Imprvmts.pdf

Technical Specifications

U.S. Department of Agriculture Forest Service Monongahela National Forest Horseshoe Recreation Area Paving And Site Improvements

Tucker County, West Virginia

March 2007

U.S. DEPARTMENT OF AGRICULTURE

FOREST SERVICE

MONONGAHELA NATIONAL FOREST

TUCKER COUNTY, WEST VIRGINIA

HORSESHOE RECREATION AREA

PAVING AND SITE IMPROVEMENTS

TECHNICAL SPECIFICATIONS

MARCH 2007

BURGESS & NIPLE, INC

ENGINEERS AND ARCHITECTS

4424 EMERSON AVENUE

PARKERSBURG, WEST VIRGINIA 26104

43331*1*07/01/09 TC - 1

CMS:jeb

TABLE OF CONTENTS

Description Page

Title Table of Contents

Technical Specifications

Division 1 – General Requirements

General Requirements 01 00 00 1- 4 Measurement and Payment 01 15 00 1- 8 Erosion Control During Construction 01 57 13 1- 15 Temporary Seeding and Mulching 01 57 14 1- 2

Division 3 – Concrete

Cast-In-Place Concrete 03 30 00 1-11

Division 31 – Earthwork

Clearing and Grubbing 31 11 00 1- 2 Excavation, Backfill, and Embankment 31 23 00 1- 12

Division 32 – Exterior Improvements

Grading and Seeding 32 90 02 1- 3

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SECTION 01 00 00

GENERAL REQUIREMENTS

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. General. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 specification sections, apply to this section.

1.2 DESCRIPTION OF WORK

A. Description. The Contractor shall provide the labor, tools, equipment, and materials necessary to complete the work in accordance with the drawings and as specified herein.

1.3 QUALITY ASSURANCE

A. Codes and Standards. Perform all work in compliance with current applicable requirements of governing agencies having jurisdiction.

B. Testing Laboratory. Engage a testing laboratory acceptable to the Contracting

Officer’s Representative (COR) to perform inspection to perform inspection and tests when required.

1.4 SUBMITTALS

A. General. Furnish samples, manufacturer's product data, test reports, and materials certifications as required for materials and mix design when required.

1.5 JOB CONDITIONS

A. Confine operations to areas within the proposed construction. Portions of the site beyond areas in which construction operations are indicated are not to be disturbed. Limit use of the premises to construction activities in areas indicated.

B. Keep driveways and entrances clear and available the property Owner at all times. Do not use these areas for parking or storage of materials. Schedule deliveries to minimize space and time requirements for storage of materials and equipment on-site.

1.6 DELIVERY, STORAGE, AND HANDLING

Not used.

1.7 SPECIAL WARRANTY

Not used.

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PART 2 - PRODUCTS

Not applicable.

PART 3 - EXECUTION

3.1 WEST VIRGINIA DIVISION OF HIGHWAYS SPECIFICATIONS AND

STANDARD DETAILS

A. Application. The West Virginia Division of Highways Standard Specifications;

Roads and Bridges; and the West Virginia Division of Highways Standard Details Books (current editions) shall apply where noted on the plans and/or specifications. Each item or section referred to in the WVDOH specifications shall have the same effect, application, and force as if produced in their entirety herein.

B. Interpretation. Notice should be taken that the WVDOH specifications are to be used for the method of construction; installation, and acceptance of the referenced item(s); and that the unit of measure to be used for payment as shown in Specification Section 01 28 00, Measurement and Payment may or may not correspond to that used by WVDOH.

C. Modifications. Where a specification contained herein modifies the WVDOH specifications or a section thereof, the modification shall prevail without altering the force and application of the remaining section of the WVDOH specifications.

3.2 POLLUTION MITIGATION. The Contractor shall reduce the possibility of polluting air and water resources within the project area by complying with the following requirements:

A. Equipment and vehicle maintenance shall be conducted in an area designated by the Contractor. Fluids, fuel, oil, and other volatile liquids stored on site shall be protected by impervious secondary containment vessels and dispensed in areas where spillage can be contained and removed without jeopardizing groundwater and water resources adjacent to the project sites. Waste fluids and oils shall be stored in sealed containers and disposed in accordance with State and Federal requirements. If waste fluids, oil or fuel is spilled, it shall be contained and removed and authorities notified if required by State and Federal regulations.

B. Solid wastes resulting from construction activities shall be stored at a site designated by the Contractor. All solid wastes shall be disposed in accordance with local, State and Federal requirements.

C. Hazardous wastes resulting from construction shall be disposed in accordance with State and Federal requirements. The Contractor shall notify the COR immediately upon encountering hazardous wastes during construction of the project.

D. Burning of construction materials and solid wastes shall not be permitted.

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3.3 SITE EROSION CONTROL. The Contractor shall provide site erosion control to prevent runoff water from the site to carry sand, silt, dirt, etc., into any storm sewer or drainage channel. Specification Section 01 57 13 "Erosion Control During Construction" describes requirements for site erosion control. Method of control shall be presented in writing to the COR for review before proceeding with any excavation.

A. Construction Staging Areas. The COR shall approve the location of the

Construction Staging Area(s) prior to use.

3.4 SAFETY. Safety requirements shall be in accordance with the General Conditions and the Occupational Safety and Health Act of 1970, U.S. Department of Labor. The Contractor is required to provide additional provisions for the safety of children in areas of work. These provisions require that the work area shall be fenced; and open excavations, open manholes or similar hazards shall not be left unattended. Excavations shall be secured at night and all equipment and supplies moved to a secured area.

3.5 PROTECTION OF FACILITIES. The Contractor shall exercise extreme caution within and adjacent to work areas so as not to damage existing facilities. The Contractor shall assume all responsibility for the protection of any existing facility to remain in service. Any facilities that are damaged due to the Contractor's operations shall be repaired or replaced by the Contractor to original condition at no expense to the Government.

3.6 NOISE, DUST, AND ODOR CONTROL. The Contractor's construction activities shall be conducted to minimize all unnecessary noise, dust, and odors. The use of oil or other materials which may cause tracking shall not be permitted.

3.7 UTILITIES

A. Potable Water and Sanitary Facilities. Potable water and sanitary facilities are available at the site at no charge to the Contractor. The Contractor shall make an effort to not track mud into the existing sanitary facilities.

B. Telephone. The Contractor shall make his own arrangements to have adequate telephone service for himself and his subcontractors until completion of the Contract.

3.8 WORK HOURS. Except in connection with the safety or protection of persons or the work or property at the site or adjacent thereto, and except as otherwise indicated in the Contract Documents, all work at the site shall be performed during regular working hours and Contractor will not permit overtime work or the performance of work on Saturday, Sunday, or any legal holiday without COR written consent. This provision does not prevent the Contractor from electing to work four consecutive 10-hour days per week as opposed to the typical five 8-hour day work week. The Contractor shall not operate heavy equipment, generators, pneumatic equipment, or otherwise generate noise, before 8:00 am or after 6:00 pm, unless there are no campers.

3.9 TOPSOIL REPLACEMENT AND GRADING. The Contractor shall follow the guidelines set in Section 32 90 02, Part 3 for topsoil placement and grading. As specified in Section 01 57 13, the Contractor shall provide Erosion Control During Construction to allow the disturbed areas to be returned to original contours (unless required to do otherwise by Plans).

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3.10 BUILDING PERMITS. It shall be the Contractor’s responsibility to pay for and obtain building and excavating permits. All permit costs and fees including construction deposits shall be borne by each Contractor.

3.11 PERMITS. The Contractor shall be responsible for meeting all construction related requirements, including payment of inspection fees, imposed upon the Government by the permits attached to this section of the specifications. Permits following this section are as follows:

A. West Virginia Division of Environmental Protection, NPDES General

Stormwater Permit

B. West Virginia Bureau for Public Health Permit

END OF SECTION

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SECTION 01 15 00

MEASUREMENT AND PAYMENT

PART 1 – GENERAL

1.1 MEASUREMENT

A. General. Measurement will be made on the basis of completed work in accordance with the Contract Documents and as stated in Section 1.04, “Item Descriptions” of this specification.

B. Excavation. Excavation shall be measured in cubic yards of material, completed, tested, and approved.

C. Subgrade. Subgrade shall be measured in cubic yards of material, completed, tested, and approved

D. Fabric for Separation. Fabric for separation shall be measured in square yards of fabric provided, installed and approved.

E. Aggregate Base. Aggregate base shall be measured in cubic yards of aggregate provided, installed, compacted and approved.

F. Hot Mix Asphalt. Hot mix asphalt shall be measured in tons of asphalt material and aggregate composition provided, installed, compacted and approved.

G. 4” Concrete Pavement. 4” concrete pavement shall be measured in square yards of concrete material provided, installed and approved.

H. Flagstone Pavement. Flagstone pavement shall be measured in square yards of flagstone material provided, installed and approved.

I. Pavement Striping. Pavement striping shall be measured in lineal feet of paint material, installed and approved.

J. Steel Encasement Pipe. Steel encasement pipe installed under pavements to provide a means of water or sewer carrier pipe removal shall be measured in linear feet for each pipe size of steel encasement pipe installed, completed, and approved.

K. Mobilization. Mobilization shall be measured as a lump sum unit, acceptably performed.

L. Construction Staking. Construction staking shall be measured as a lump sum unit, acceptably performed.

M. Grading and Seeding. Grading and seeding shall be measured as a lump sum unit, completed and approved.

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1.2 QUANTITIES

A. Actual Quantity (AQ). These quantities are determined from measurements of completed work.

B. Design Quantity (DQ). These quantities denote the final number or units to be paid for under the terms of the Contract. They are based upon the original design data available prior to advertising the project. Changes in the number or units shown in the Schedule of Items located on sheet T-2 of the Plans, may be authorized under any of the following conditions:

1. As a result or changes in the work authorized by the Contracting

Officer’s Representative (COR).

2. As a result of the COR determining that errors exist in the original design that causes a pay item quantity to change by 15 percent or more.

3. As a result of the Contractor submitting to the COR a written request showing evidence of errors in the original design that cause a pay item quantity to change 15 percent or more. The evidence must be verifiable and consist of calculations, drawings, or other data that show how the designed quantity is believed to be in error.

C. Lump Sum Quantity (LSQ). These quantities denote one complete unit of work required by or described in the Contract, including necessary materials, equipment, and labor to complete the job. They will not be measured.

1.3 PAYMENT

A. Current Payments. Payments will be made as stated in the Agreement and at the Unit Prices and Lump Sum Prices Bid from quantities and units identified in the Schedule of Items located on sheet T-2 of the Plans..

B. Incidental Costs

1. Include in appropriate pay items costs for the following:

a. Labor.

b. Materials.

c. Equipment.

d. Insurance.

e. Workmen’s Compensation.

f. Licenses.

g. Permits (including permit fees).

h. Taxes.

i. General Overhead.

j. Profits.

k. All other expenses and appurtenances necessary for the prosecution of the work.

2. Tests. Incidental to the appropriate pay items.

a. Laboratory tests.

b. Soil Tests.

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c. Operational tests of valves, pumps and electrical components.

1.4 ITEM DESCRIPTIONS

A. Excavation. Item 1. (DQ)

1. Will be paid for at the Contract Unit Price of Cubic Yard complete in place, tested and approved by the COR.

2. Payment under this item shall include all labor, materials, and any other incidental construction necessary to excavate earth to the proposed grades as indicated on the contract drawings and in the WVDOT Standard Specifications – Roads and Bridges.

B. Subgrade. Item 2. (DQ) incidental construction necessary to prepare and compact the subgrade surface layer prior to the placement of pavement sections as indicated on the contract drawings and in the WVDOT Standard Specifications – Roads and Bridges.

C. Fabric for Separation. Item 3. (DQ)

1. Will be paid for at the Contract Unit Price of Square Yard complete in incidental construction necessary to provide fabric for separation and install it prior to the placement of pavement sections as indicated on the contract drawings and in the WVDOT Standard Specifications – Roads and Bridges.

D. Aggregate Base, Class 1. Item 4. (DQ) incidental construction necessary to provide, install, and compact aggregate base, class 1 material as indicated on the contract drawings and in the WVDOT Standard Specifications – Roads and Bridges.

E. Aggregate Base, Class 10. Item 5. (DQ)

43331*11*07/01/09 01 15 00 - Page 4 of 8 incidental construction necessary to provide, install, and compact aggregate base, class 10 material as indicated on the contract drawings and in the WVDOT Standard Specifications – Roads and Bridges.

F. Marshall Hot-Mix Asphalt Base Course, Class 1. Item 6. (DQ)

1. Will be paid for at the Contract Unit Price of Ton complete in place, tested and approved by the COR.

incidental construction necessary to furnish, install, and compact Marshall hot-mix asphalt base course, class 1 material as indicated on the

G. Marshall Hot-Mix Asphalt Wearing Course. Item 7. (DQ)

1. Will be paid for at the Contract Unit Price of Ton complete in place, incidental construction necessary to furnish, install, and compact Marshall hot-mix asphalt wearing course material as indicated on the

H. 4” Concrete Pavement. Item 8. (DQ) incidental construction necessary to furnish and install 4” thick concrete pavement as indicated on the contract drawings and in the WVDOT Standard Specifications – Roads and Bridges. This item shall include but not be limited to excavation, WVDOT subgrade, WVDOT bed course material, expansion joint material, reinforcing, joint sealant, concrete material, finishing and curing. These items shall be constructed according to WVDOT item 609.

I. Flagstone Paving. Item 9. (DQ)

2. Payment under this item shall include all labor, materials and any other incidental construction necessary to furnish and install flagstone paving as indicated on the contract drawings and in the WVDOT Standard Specifications – Roads and Bridges. This item shall include but not be limited to excavation, WVDOT subgrade, WVDOT bed course material, flagstone pavers, and mortar bed.

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J. Aggregate Pavement. Item 10. (DQ) incidental construction necessary to furnish and install aggregate pavement as indicated on the contract drawings and in the WVDOT Standard Specifications – Roads and Bridges. This item shall include but not be limited to excavation, WVDOT subgrade, WVDOT fabric for separation, and WVDOT item 307001 aggregate base course - class 10, and compaction of aggregate base course material.

K. Pavement Striping. Item 11. (DQ)

1. Will be paid for at the Contract Unit Price of Lineal Feet complete in

2. Payment under this item shall include all labor, material, any other incidental construction necessary to furnish and install pavement striping for parking stalls and one cross walk as indicated on the contract drawings and in the WVDOT Standard Specifications – Roads and Bridges. This item shall include but not be limited to striping layout and paint for pavement marking.

L. Physically Challenged Parking and Pavement Marking. Item 12. (AQ)

1. Will be paid for at the Contract Unit Price of Each complete in place,

2. Payment under this item shall include all labor, materials and any other incidental construction necessary to furnish and install physically challenged parking and pavement marking as indicated on the contract plans and in the WVDOT Standard Specifications – Roads and Bridges.

This item shall include but not be limited to striping layout and paint for a universal physically challenged symbol, striping to designate the loading area and parking stall boundary for one physically challenged parking stall. All pavement striping and marking shall meet WVDOT item 663.

M. Steel Encasement Pipe, Open Trench. Quantity Items 13 through 16. (DQ)

1. Will be paid for at the Contract Unit Price of Linear Feet for each size of Steel Encasement Pipe specified, installed, complete in place, and ready for service and approved by the COR.

2. Payment for these items shall include all necessary clearing, trench excavation (regardless of type of material encountered), embankments, dewatering (well points if necessary), sheeting, shoring, preparation of trench bottom, encasement pipe, backfill, disposal of waste materials, 43331*11*07/01/09 01 15 00 - Page 6 of 8 dust, odor, and noise control, maintenance of traffic, cleaning up, sediment and erosion control, matting, temporary grading and seeding and or mulching, protection and support of existing utilities, trees and structures, and all other related expenses whether specifically mentioned or not

N. Mobilization. Quantity Item 17. (LSQ)

1. Will be paid for at the Contract Unit Price of Lump Sum.

2. Payment under this item shall include the performance of construction preparatory operation, including the movement of equipment and personnel to the project site and for the establishment of the Contractor’s field offices, buildings, and other facilities necessary to conduct work under this contract.

3. In no case shall the lump sum price bid exceed the following amount:

$22,000 + 2% (0.02) times (Total of all Bid Items minus $500,000)

No deduction will be made, nor will any increase be made, in the lump sum mobilization item amount regardless of decreases or increases in the final total contract amount or for any other cause.

4. Payments will be made in accordance with the following schedule:

a. Whenever the Contractor has set up his general offices, shops, and met requirements for progress schedule, schedule of values, pre-construction audio-video survey, COR field office (when required), and sedimentation and erosion control plan, he shall be entitled to 30 percent of the bid amount for

MOBILIZATION.

b. Whenever the Contractor has performed work equal to 10 percent of the total contract price excluding the bid price for MOBILIZATION, 40 percent of the amount of bid for MOBILIZATION may be paid.

c. Whenever the Contractor has performed work equal to 20 percent of the total contract price excluding the bid price for MOBILIZATION, any remaining amount bid for MOBILIZATION may be paid.

O. Construction Staking. Quantity Item 18. (LSQ)

1. Will be paid for at the Contract Unit Price of Lump Sum.

2. Payment under this item shall include the performance of all construction staking required for the horizontal and vertical layout and control for the construction of the proposed roadways, parking areas, camp site improvements and additions, utility locations, and all other miscellaneous improvements under this contract.

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P. Grading and Seeding. Quantity Item 19. (LSQ)

1. Will be paid for at the Contract Unit Price of Square Yard to replace all existing disturbed or damaged areas, complete in place, and approved by the COR.

2. This item shall include all necessary grading, topsoil, fertilizer, water, seed and mulch (including temporary grading seeding, and of mulching), and matting, to replace the existing disturbed or damaged area.

Q. Log Curb. Quantity Item 20. (AQ)

1. Will be paid for at the Contract Unit Price of Each complete in place and approved by the COR.

2. This item shall include all labor, materials, and any other incidental construction necessary to provide and install a log curb as indicated on the contract plans. This item shall include but not be limited to CCA preservative treated logs and blocks, and anchoring rebar pins.

R. Reserved Parking Sign Assembly. Quantity Item 21. (AQ)

2. This item shall include all labor, materials and any other incidental construction necessary to provide and install a reserved parking sign assembly as indicated on the contract plans. This item shall include but not be limited to a sign with specified graphics and color, support post, and fasteners.

S. Wheel Stop. Quantity Item 22. (AQ)

2. This item shall include all labor, materials and any other incidental construction necessary to provide and install a wheel stop as indicated on the contract plans. This item shall include but not be limited to a precast wheel stop and anchoring rebar pins.

PART 2 – PRODUCTS

PART 3 – EXECUTION

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43331*15*7/1/2009 01 57 13 - Page 1 of 15

SECTION 01 57 13

EROSION CONTROL DURING CONSTRUCTION

A. General. Drawings and general provisions of the Contract, including General

1.2 DESCRIPTION OF WORK.

A. Scope of Work. The Contractor shall provide all labor, tools, equipment, and materials necessary to furnish the soil erosion controls where shown on the drawings, required by the enclosed NPDES Storm Water Permit issued by the WVDEP, where directed by Contracting Officer’s Representative (COR), and as specified herein. The location and scheduling of these measures shall be as shown in the Contractor's approved Storm Water Pollution Prevention Plan. The cost of all erosion control measures shall be included in the price Bid for the Contract.

1.3 QUALITY ASSURANCE

A. Scheduling. Where erosion is likely to be a problem, clearing and grubbing operations should be so scheduled and performed that grading operations and permanent erosion control features can follow immediately thereafter if the project conditions permit; otherwise temporary erosion control measures will be required between successive construction stages. These erosion control measures shall be maintained in effective operating condition during construction until final seeding and site restoration occurs. Special attention must be given to dewatering activities to minimize release of silt laden water off-site. The sediment free flows shall only be released into storm sewers, stream channels, or other stabilized drainage receptors and not onto exposed soils or any other site where flows could cause further erosion.

B. Dust Control. Dust generation shall be minimized, including wetting down of unpaved areas during the construction activities as directed by the COR.

C. Operation Limits. The COR will delineate the area of excavation and backfilling operations in progress commensurate with the Contractor's capability and progress in keeping the finished grading, mulching, seeding, and other such temporary or permanent control measures current in accordance with the specifications. Should seasonal limitations make permanent control measures unrealistic, temporary erosion control measures including seeding and mulching shall be taken immediately. Surplus excavated material and equipment storage is prohibited within 200 feet of any stream bank, in wooded areas, or in other environmentally sensitive areas. For any surplus excavated materials to be disposed of on-site, do so as approved by the COR. The Contractor shall utilize measures as described herein to prevent erosion and sedimentation at the disposal site(s).

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D. Site Containment. Site access will be limited and protected to prevent off-site tracking of soil and sediment from construction traffic. Any off-site tracking of sediment will be cleaned up immediately to prevent any sedimentation escaping off-site.

E. Conflicts. In the event of conflict between these requirements and pollution control laws, rules, or regulations of other Federal or State or local agencies, the more restrictive laws, rules, or regulations shall apply.

F. Referenced Standards

1. WVDOH - West Virginia Department of Transportation, Division of

Highways.

2. Soil Conservation Service (Natural Resources Conservation Service)

3. WVDEP - West Virginia Department of Environmental Protection

A. Storm Water Pollution Prevention Plan. The Contractor shall submit a Storm Water Pollution Prevention Plan for approval. The Storm Water Pollution Prevention Plan shall be submitted to the West Virginia Department of Environmental Protection, Division of Water and Waste Management, Permitting and Engineering Branch, 601 5th Street SE, Charleston, WV 25304. (Contact Person: As identified on the enclosed NPDES Storm Water Permit, (304)926- 0495).

This plan shall include location of all specific erosion control devices and the schedule of their installation and removal. The plan shall include location of erosion control devices on the site plan. No stockpiling of material will be permitted until the Plan has been approved. Contractor shall provide a copy of each of the approved Storm Water Pollution Prevention Plan to the COR.

B. NPDES Storm Water Permit for Waste or Borrow Sites. The Contractor shall be responsible for obtaining a separate NPDES Storm Water Permit for any waste or borrow site(s) to be utilized in conjunction with this project. The Contractor shall be responsible for meeting all construction related requirements, including payment of application fees.

A. General. The Contractor shall limit the surface area of erodible earth material exposed by the clearing and grubbing, excavation, borrow, and fill operations and provide immediate permanent or temporary control measures to prevent contamination of adjacent streams or other water courses, lakes, ponds, or other areas of water impoundment. Such work will involve the construction of temporary ditch checks, filters, benches, dikes, dams, sediment basins, slope drains, and use of temporary mulches, mats, seeding or other control and contain devices or methods necessary to control erosion and sedimentation. The Contractor shall prepare and submit an erosion control plan in advance of the work. This plan shall include site plans of the work area, barrier details, erection and removal schedules, etc. If work is suspended for any reason, the Contractor shall maintain the soil erosion and sedimentation controls in good operating

43331*15*7/1/2009 01 57 13 - Page 3 of 15 condition during the suspension of the work. Also, when seasonal conditions permit and the suspension of work is expected to exceed a period of one month, the Contractor shall seed, fertilize, and mulch all disturbed areas left exposed when the work is stopped.

B. Permanent Erosion Control. The Contractor shall incorporate all permanent erosion control features into the project at the earliest practicable time. Except where future construction operations will damage slopes, the Contractor shall perform the permanent seeding and mulching and other specified slope protection work in stages, as soon as substantial areas can be made available. This will require the establishing of final grades and application of fertilizer, seeding and mulching. When directed by the COR, the temporary items of fertilizer, seeding and mulching materials shall be used. No areas where construction is completed shall be left for longer than 7 days without, as a minimum, temporary seeding.

Any disturbed area that will not be actively under construction for a period of 7 days or more shall be temporarily stabilized immediately by fertilizer, seeding and mulching or by anchored straw mulch. Temporary control measures will be used when and as directed by the COR to correct conditions that develop during construction that were not foreseen during the design stage; that are needed prior to installation of permanent control features; or that are needed temporarily to control erosion that develops during normal construction practices, but are not associated with permanent control features on the project. Silt barriers shall be maintained until grass has grown.

1.6 DELIVERY, STORAGE, AND HANDLING

1.7 SPECIAL WARRANTY

Not used.

PART 2 - PRODUCTS

2.1 BARRIERS

A. Sediment Barriers. Sediment barriers are temporary measures using woven wire or other approved material attached to posts with filter cloth of burlap or plastic filter fabric to intercept, detain and control sediment and erosion from leaving the construction site. Sediment barriers are generally restricted to the control of overland flow (sheet flow) and small to moderate channels.

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1. Materials

a. Synthetic filter fabric shall be a pervious sheet of propylene, nylon, polyester or ethylene yarn and shall be certified by the manufacturer or supplier as conforming to the following requirements:

Physical Property Requirements

Filtering Efficiency 75% (min)

Tensile Strength at 20% (max.) Extra Strength- Elongation* 50 lbs/lin in (min) Standard Strength- 30 lbs/lin in (min)

Flow Rate 0.3 gal/sq ft/min (min)

*Requirements reduced by 50 percent after 60 months of installation.

Synthetic filter fabric shall contain ultraviolet ray inhibitors and stabilizers to provide a minimum of 6 months of expected useable construction life at a temperature range of 0o F to 120º F.

b. Burlap shall be 10 ounce per square yard fabric.

c. Posts for silt fences shall be either 4 inch diameter wood or 1.33 pounds per linear foot steel with a minimum length of 5 feet.

Steel posts shall have projections for fastening wire to them.

d. Stakes for filter barriers shall be 1" x 2" wood (preferred) or equivalent metal with a minimum length of 3 feet.

e. Wire fence reinforcement for silt fences using standard strength filter cloth shall be a minimum of 42 inches in height, a minimum of 14 gauge and shall have a maximum mesh spacing of 6 inches.

f. Matting shall be jute, excelsior or approved equal synthetic material as specified in WVDOH Item 715.24.

B. Temporary Seeding and Mulching. Temporary seeding and mulching are measures consisting of seeding, mulching, fertilizing, and matting used to reduce erosion. All cut and fill slopes including borrow pits shall be seeded and/or mulched where and when necessary to eliminate erosion.

C. Sediment Structures. Sediment basins, dams, and dikes are prepared storage areas to trap and store sediment from construction areas and to protect properties and stream channels below the construction areas from siltation.

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PART 3 - EXECUTION

3.1 GENERAL

A. Storm Water Pollution Prevention Plan. Follow the methods and schedule found in the Storm Water Pollution Prevention Plan.

B. Changes in Storm Water Pollution Prevention Plan. If the Contractor's construction means or scheduling deviates from that found in the approved Storm Water Pollution Prevention Plan, then the Contractor shall construct, maintain and remove erosion control devices or means, as directed by the COR.

3.2 SEDIMENT BARRIERS

A. Filter Barriers (FB). The filter barrier may be constructed using burlap or standard strength synthetic filter fabric. It is designed for low or moderate flows not exceeding 1 cfs.

1. The height of a filter barrier shall be a minimum of 15 inches and shall not exceed 18 inches.

2. Burlap or standard strength synthetic filter fabric shall be purchased in a continuous roll and cut to the length of the barrier to avoid the use of joints (and thus improve the strength and efficiency of the barrier).

3. The stakes shall be spaced a maximum of 3 feet apart at the barrier location and driven securely into the ground (minimum of 8 inches).

4. A trench shall be excavated approximately 4 inches wide and 4 inches deep along the line of stakes and upslope from the barrier.

5. The filter material shall be stapled to the wooden stakes, and 8 inches of the fabric shall be extended into the trench. Heavy duty wire staples at least 1/2 inch long shall be used. Filter material shall not be stapled to existing trees.

6. The trench shall be backfilled and the soil compacted over the filter material.

7. If a filter barrier is to be constructed across a ditch line or swale, the barrier shall be of sufficient length to eliminate end flow, and the plan configuration shall resemble an arc or horseshoe with the ends oriented upslope.

8. Filter barriers shall be removed when they have served their useful purpose, but not before the upslope area has been permanently stabilized.

B. Silt Fence (SF). This silt fence uses a standard strength or extra strength synthetic filter fabrics. It is designed for situations in which only sheet or overland flows are expected.

1. The height of a silt fence shall not exceed 36 inches (higher fences may impound volumes of water sufficient to cause failure of the structure).

2. The filter fabric shall be purchased in a continuous roll cut to the length of the barrier to avoid the use of joints. When joints are necessary, filter cloth shall be spliced together only at a support post, with a minimum 6 inch overlap, and securely sealed.

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3. Posts shall be spaced a minimum of 10 feet apart at the barrier location and driven securely into the ground (minimum of 12 inches). When extra strength fabric is used without the wire support fence, post spacing shall not exceed 6 feet.

4. A trench shall be excavated approximately 4 inches wide and 4 inches deep along the line of posts and upslope from the barrier.

5. When standard strength filter fabric is used, a wire mesh support fence shall be fastened securely to the upslope side of the posts using heavy duty wire staples at least 1 inch long, tie wires or hog rings. The wire shall extend into the trench a minimum of 2 inches and shall not extend more than 36 inches above the original ground surface.

6. The standard strength filter fabric shall be stapled or wired to the fence, and 8 inches of the fabric shall be extended into the trench. The fabric shall not extend more than 36 inches above the original ground surface.

Filter fabric shall not be stapled to existing trees.

7. When extra strength filter fabric and closer post spacing are used, the wire mesh support fence may be eliminated. In such a case, the filter fabric is stapled or wired directly to the posts with all other provisions of item No. 6 applying.

8. The trench shall be backfilled and soil compacted over the filter fabric.

9. Silt fences shall be removed when they have served their useful purpose, but not before the upslope area has been permanently stabilized.

C. Circular Rock Dam

The circular rock dam is designed for inlet protection with a maximum drainage area of 1 acre.

1. The height of the dam shall be a minimum of 12 inches and shall not exceed 24 inches above the top of the inlet.

2. The dam shall have a maximum outside slope of 2:1 and a maximum inside slope of 3:1.

3. A trench shall be excavated approximately 12 inches wide and 8 inches deep around the outside of the inlet.

4. A ring of gravel shall be laid around the inlet to the minimum height and at the specified slopes. The toe of the inside slope should not extend into the trench.

5. The top of the rock dam on the downslope side of the inlet shall be approximately 6 inches below the ground elevation to reduce runoff bypass.

6. Place a minimum of 12 inches of Size No. 1 gravel per AASHTO M43 on the outside face of the dam at a minimum of 2:1 slope.

7. Spread Size No. 4 gravel per AASHTO M43 from the inside slope to the inlet. The excavated area shall be recessed a minimum of 4 inches to keep the stone out of the inlet.

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D. Maintenance

1. Silt fences, filter barriers, and rock dams shall be inspected immediately after each rainfall and at least daily during prolonged rainfall. Any required repairs shall be made immediately.

2. Should the fabric on a silt fence or filter barrier decompose or become ineffective prior to the end of the expected useable life and the barrier is still necessary, the fabric or rock shall be replaced promptly.

3. Sediment deposits should be removed after each storm event. They must be removed when deposits reach approximately one-half the height of the barrier.

4. Any sediment deposits remaining in place after the silt fence or filter barrier or circular rock dam is no longer required shall be dressed to conform with the existing grade, prepared and seeded.

3.3 SEDIMENT BASINS AND DAMS. Temporary sediment basins and dams shall be constructed in accordance with Specification Section 31 23 00, "Excavation and Backfill," WVDOH Item 704.4 for the material graded 75-200 pounds.

A. Installation. Sediment basins and dams shall be installed before disturbing the land that drains into them.

B. Maintenance. Deposited sediment shall be removed when 50 percent of the initial volume has been filled with silt.

3.4 MATTING. Matting shall be provided on all final slopes 3:1 or greater and bottom of drainage ditches per Sections 01 57 14, Temporary Seeding and 32 90 02, Grading and Seeding of the specifications.

3.5 ROCK CHANNEL PROTECTION. Rock channel protection shall be provided at all storm outlets in accordance with WVDOH Item 633 and as shown on the construction drawings.

3.6 TOP SOIL STOCKPILES. The Contractor may stockpile topsoil in accordance with

Section 32 90 02 "Grading and Seeding." The Contractor shall provide temporary drainage diversion of runoff around the stockpile to control soil erosion and in accordance with WVDOH's Standard Construction Drawings. Stockpiled topsoil shall be protected through the use of temporary seeding and mulching or covering such as with anchored straw mulch. Silt barriers shall be installed down gradient of these areas on contour and with their ends up slope of the contour to prevent silt laden runoff from entering waterways or storm sewers. Within 7 days of completion of construction, any remaining soil shall either be removed or permanently stabilized.

3.7 STREAM BANKS. All trenching operations within any stream shall require the trench to be compacted and, where identified on the plans and/or directed by the COR, riprap or rock fill placed at the stream banks and bottoms as detailed on the Plans. All other areas not designated to be restored with riprap or rock fill shall be restored, graded, seeded and mulched in accordance with the specifications immediately upon completion of the work.

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3.8 STORM DRAIN INLET PROTECTION (IP). Temporary sediment control must be provided around storm inlets until the tributary drainage area is permanently stabilized.

This shall consist of an inlet sediment filter of silt fence or circular rock dam as specified herein.

A. Curb Inlet Protection. Inlet protection shall be constructed either before upslope land disturbance begins or before the storm drain becomes operational.

1. The wooden frame is to be constructed of 2-by-4-in. construction-grade lumber. The end spacers shall be a minimum of 1 ft. beyond both ends of the throat opening. The anchors shall be nailed to 2-by-4-in. stakes driven on the opposite side of the curb.

2. The wire mesh shall be of sufficient strength to support fabric and stone.

It shall be a continuous piece with a minimum width of 30 in. and 4 ft.

longer than the throat length of the inlet, 2 ft. on each side.

3. Geotextile cloth shall have an equivalent opening size (EOS) of 20-40 sieve and be resistant to sunlight. It shall be at least the same size as the wire mesh.

4. The wire mesh and geotextile cloth shall be formed to the concrete gutter and against the face of the curb on both sides of the inlet and securely fastened to the 2-by-4-in. frame.

5. Two-inch stone shall be placed over the wire mesh and geotextile in such a manner as to prevent water from entering the inlet under or around the geotextile cloth.

B. Inlet Protection in Swales, Ditch Lines or Yard Inlets. Inlet protection shall be constructed either before upland slope land disturbance begins or before the storm drain becomes operational.

1. The earth around the inlet shall be excavated completely to a depth at least 18 in.

2. The wooden frame shall be constructed of 2-by-4-in. construction-grade lumber. The 2-by-4-in. posts shall be driven 1 ft. into the ground at four corners of the inlet and the top portion of 2-by-4-in. frame assembled using the overlap joint shown. The top of the frame shall be at least 6 in.

below adjacent roads if ponded water would pose a safety hazard to traffic.

3. Wire mesh shall be of sufficient strength to support fabric with water fully impounded against it. It shall be stretched tightly around the frame and fastened securely to the frame.

4. Geotextile shall have an equivalent opening size of 20-40 sieve and be resistant to sunlight. It shall be stretched tightly around the frame and fastened securely. It shall extend from the top of the frame to 18 in.

below the inlet notch elevation. The geotextile shall overlap across one side of the inlet so the ends of the cloth are not fastened to the same post.

5. Backfill shall be placed around the inlet in compacted 6-in. layers until the earth is even with notch elevation on ends and top elevation on sides.

6. A compacted earth dike or a check dam shall be constructed in the ditch line below the inlet if the inlet is not in a depression and if runoff bypassing the inlet will not flow to a settling pond. The top of earth dikes shall be at least 6 in. higher than the top of the frame.

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3.9 SEDIMENT FILTER BAG. Sediment filter bag shall be used with mechanical dewatering devices.

A. Material. The filter bag shall be constructed of non-woven geotextile material that will provide adequate filtering ability to capture the larger soil particles from the pumped water. The bag shall be constructed so that there is an inlet neck that may be clamped around the dewatering pump discharge hose so that all of the pumped water passes through the bag.

B. Location. The bag shall be placed on well-established grass, or on an aggregate pad constructed of WVDOT #57 stone at a minimum depth of 6 inches. The bag should never be placed on bare soil.

C. Storage Volume. The capacity of the sediment filter bag shall be adequate to handle the dewatering pump discharge, and shall be based on the bag manufacturer’s recommendation.

D. Operation. When placed on either a stone pad or well-established grass, the pad may be operated until such time the discharge from the bag reaches a stream.

Unless the discharge is at least clear as the receiving water, the pump must be shut off at this point.

E. Disposal. When the bag has been completely filled with sediment, it shall be cut open, regraded in-place, and immediately stabilized per Sections 01 57 14, Temporary Seeding and 32 90 02, Grading and Seeding of the specifications.

F. Maintenance. The filtering devices must be inspected frequently and repaired or replaced once the sediment build-up prevents the structure from functioning as designed.

3.10 NPDES STORM WATER PERMIT. The Contractor shall be responsible for meeting all construction related requirements, including payment of inspection fees (if any), imposed upon the Governement by the NPDES Storm Water Permit issued by the WVDEP for the work performed on the project site.

A. Public Notice Sign. Within 24 hours after receipt of the Notice to Proceed, all projects shall display a sign for the duration of the construction project near the entrance of the project or, for linear projects, at a location near an active part of the project that is accessible by the public, which contains the following:

1. The registrants name or the name of a contact person along with a telephone number.

2. A brief description of the project.

3. A statement indicating that the SWPPP, as applicable, has been filed with the WVDEP – Division of Water and Waste Management

(DWWM).

4. The address and telephone number where the SWPPP is maintained.

5. That any person may obtain a copy of the SWPPP by contacting the

DWWM at (304) 926-0495.

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3.11 CONSTRUCTION DETAILS. The following pages provide details describing the construction of the required erosion and sediment control facilities to be incorporated in this project by the Contractor:

A. Page 01 57 13 -11, Typical Silt Fence

B. Page 01 57 13 -12, Typical Filter Barrier

C. Page 01 57 13 -13, Curb Inlet Protection

D. Page 01 57 13 -14, Inlet Protection in Swales, Ditch Lines or Yard Inlets

E. Page 01 57 13 -15, WVDEP Public Notice Sign.

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SECTION 01 57 14

TEMPORARY SEEDING AND MULCHING

A. General. Drawings and general provisions of the Contract, including General

A. General. The Contractor shall provide the labor, tools, equipment, and materials necessary to provide temporary seeding and mulching as specified herein. All disturbed areas shall be final graded and seeded in accordance with Section 32 90 02, "Grading and Seeding," within 7 days of the last disturbance. If after 7 days final grading and seeding has not been completed, temporary seeding and mulching shall be completed as specified herein.

A. Codes and Standards. Perform all work to provide temporary seeding in compliance with applicable requirements of governing agencies having jurisdiction and according to the drawings and as specified herein.

A. Transmittals. Furnish samples, manufacturer's product data, test reports, and materials certifications as required for materials and mix design.

1.5 JOB CONDITIONS

Not used.

1.6 DELIVERY, STORAGE, AND HANDLING

Not used.

1.7 SPECIAL WARRANTY

Not used.

PART 2 - PRODUCTS

2.1 MATERIAL

A. Fertilizer. Fertilizer shall be 10-10-10.

B. Seed. Seed shall be oats or rye.

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C. Mulch

1. Straw. Straw mulch shall be baled wheat or oat straw free of weed seed, sticks, or other foreign material.

2. Wood Cellulose Fiber. Wood cellulose fiber mulch shall be dyed green and shall not inhibit the growth or germination of the seed.

D. Matting. Matting material shall be jute, excelsior, or an approved synthetic material meeting the requirements of West Virginia Department of Highways (WVDOH) Item 715.24.

PART 3 - EXECUTION

3.1 INSTALLATION

A. General. The preparation of a seed bed is not required.

B. Fertilizing. Fertilizer shall be uniformly applied to all areas to be seeded at a rate of 7 pounds per 1,000 square feet.

C. Seeding. All disturbed areas to be seeded which will be subject to further disturbance before the project is completed shall be seeded with a temporary seed mix. Seed and fertilizer shall be covered to a depth of 1/4 inch. A disk, harrow, or other suitable equipment shall be used to cover the seed and fertilizer. Seed shall be applied according to the following schedule:

Dates Rate of From To Kind of Seeding Minimum Minimum Minimum (Inclusive) Seed Bushel/Acre Germination Purity

March 1 - August 15 Oats 3 80% 97.5% August 16 - February 28 Rye 3 85% 97.0% August 16 - February 28 Rye 3 85% 97.0%

D. Mulching. Straw mulching material shall be placed evenly over all temporary seeded areas within 48 hours of seeding at a rate of 2 tons per acre. Straw mulching material shall be secured with asphalt emulsion applied at a rate of 60 gallons per ton of mulch or by other approved methods. If weather conditions are prohibitive for the placement of temporary fertilizer and seed, the Contracting Officer’s Representative may authorize the application of straw mulching, only, at a rate of 3 tons per acre.

E. Matting. Matting shall be provided on all final slopes 3:1 or greater. Matting shall be installed per the requirements of WVDOH items 655.2 and 655.3.

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SECTION 03 30 00

CAST-IN-PLACE CONCRETE

A. General. Drawings and general provisions of Contract, including General and

Supplementary Conditions and Division 1 specification sections, apply to this section.

A. Scope of Work. The Contractor shall provide the labor, tools, equipment and materials necessary furnish and install the cast-in-place concrete in accordance with the drawings and as specified herein.

1. This section specifies cast-in-place concrete, including formwork, reinforcing, mix design, accessories, placement procedures, joints, finishes, curing, and supports for equipment and piping.

2. Other specification sections may reference this section for other cast-in-place concrete items.

3. Install embedded items required for material and equipment specified in other divisions of these specifications.

A. Codes and Standards. Comply with provisions of following codes, specifications, and standards, except where more stringent requirements are shown or specified:

1. ACI 301 "Specifications for Structural Concrete for Buildings."

2. ACI 318 "Building Code Requirements for Reinforced Concrete."

B. Concrete Testing Service. Engage a testing laboratory acceptable to

Contracting Officer’s Representative (COR) to perform material evaluation tests and to design concrete mixes.

C. Testing. Materials and installed work may require testing and retesting at any time during progress…