Specifications.pdf

SPECLIST_Line_Creek_NO3B.doc

SPECIFICATION LIST

CLAY COUNTY, TENNESSEE

EMERGENCY WATERSHED PROTECTION PROJECT 5068

LINE CREEK WATERSHED DAM NO 3B

07-12-2011

SPEC.

NO. DESCRIPTION

CONSTRUCTION SPECS

1 Clearing

5 Pollution Control

6 Seeding, Sprigging, and Mulching

8 Mobilization and Demobilization

9 Traffic Control

21 Excavation

23 Earthfill

26 Topsoiling

27 Diversions and Waterways

51 Corrugated Metal Pipe

61 Rock Riprap

92 Field Fence

95 Geotextile

MATERIAL SPECS

523 Rock Riprap

582 Galvanizing

585 Wood Preservatives and Treatment

SPECLIST_Line_Creek_NO3B.doc

591 Field Fencing Materials

592 Geotextile

(210-VI-NEH, May 2001)

Construction Specification 1—Clearing

1. Scope The work shall consist of the clearing and disposal of trees, snags, logs, brush, shrubs, stumps, and rubbish from the designated areas.

2. Classification Unless otherwise specified in section 8, clearing will be classified according to the following definitions:

Class A—Requires that trees and other woody vegetation be removed so that the remaining stumps extend no higher than 4 inches above the ground surface.

Class B—Requires that trees and other woody vegetation be removed so that the remaining stumps extend no higher than 12 inches above the ground surface.

Class C—Requires that trees and other woody vegetation be removed as near the ground surface as conventional tools or field conditions will permit or as specified in section 8.

3. Protection of existing vegetation Trees and other woody vegetation designated to remain undisturbed shall be protected from damage throughout the entire construction period. Any damage resulting from the contractor's operations or neglect shall be repaired by the contractor.

Earthfill, stockpiling of materials, vehicular parking, and excessive foot or vehicular traffic shall not be allowed within the dripline of vegetation designated to remain in place. Vegetation damaged by any of these or similar actions shall be replaced with viable vegetation of the same species or as specified in section 8 and approved by the contracting officer.

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

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

All roots 1 inch or larger in diameter that are cut, broken, or otherwise severed during construction operations shall have the end smoothly cut perpendicular to the root. Roots exposed during excavation or other operations shall be covered with moist earth and/or backfilled as soon as possible to prevent them from drying.

4. Marking The limits of the areas to be cleared will be marked by stakes, flags, tree markings, or other suitable methods. Trees to be left standing and uninjured will be designated by special markings placed on the trunks at a height of about 6 feet above the ground surface.

5. Clearing All trees not marked for preservation and all snags, logs, brush, shrubs, stumps, rubbish, and similar materials shall be cleared from within the limits of the marked areas.

6. Disposal All materials cleared from the designated areas shall be disposed of at locations shown on the drawings or in a manner specified in section 8. The contractor is responsible for complying with all local rules and regulations and the payment of any and all fees that may result from the disposal at locations away from the construction location.

7. Measurement and payment Method 1—For items of work for which specific unit prices are established in the contract, the cleared area is measured to the nearest 0.1 acre. Payment for clearing is made for the total area within the designated limits at the contract unit price for the specified class of clearing. Such payment will constitute full compensation for all labor, equipment, tools, and all other items necessary and incidental to the completion of the work.

Method 2—For items of work for which specific unit prices are established in the contract, the length of the cleared area is measured to the nearest full station (100 feet) along the line designated on the drawings or in the specifications. Payment for clearing is made for the total length within the designated limits at the contract unit price for the specified class of clearing.

Such payment will constitute full compensation for all labor, equipment, tools, and all other items necessary and incidental to the completion of the work.

Method 3—For items of work for which specific unit prices are established in the contract, the cleared areas is measured within the specified limits to the nearest 0.1 acre. The cleared areas are determined by measuring the width cleared, within the specified limits, at representative sections and multiplying the average width between sections by the linear distance between sections.

Payment for clearing is made at the contract unit price for the item and shall constitute full compensation for all labor, equipment, tools, and all other items necessary and incidental to the completion of the work.

Method 4—For items of work for which specific lump sum prices are established in the contract, payment for clearing is made at the contract lump sum prices. Such payment shall constitute full compensation for all labor, equipment, tools, and all other items necessary and incidental to the completion of the work.

All Methods—These 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 8.

NRCS-Tennessee (1-3) Clay County EWP Emergency W/S Protection Line Creek No. 3B Project Number 5068 July 12, 2011

8. 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 – Clearing

1) This item of work shall consist of cutting, removal and/or disposal of all trees, limbs, stumps, woody materials, debris, junk, and garbage on the watershed top of dam and embankments, or in the area where diversion will be reestablished.

(1) All woody debris shall be disposed of by burning. The contractor is responsible for obtaining any required burn permits. All non-woody debris and woody debris that will not burn shall be disposed of in a landfill. The contractor is responsible for all tipping fees. In Section 5, Disposal, all combustible materials shall be disposed of by burning. All precautions necessary to prevent the burning of areas adjacent to the work area shall be used. When conditions exist, such as high winds, extremely dry conditions, or climatic conditions that create heavy concentrations of smoke, burning will not be allowed. All burning shall be performed in conformance with all existing state and local laws. Burning will be allowed on the project sites at locations specified on the drawings or as approved in the field by the COTR. Burn locations shall be chosen to protect existing vegetation, crops, the environment, property, and the public. The Contractor shall keep sufficient labor and equipment in the immediate vicinity of his open burning operations that are capable of quickly containing and extinguishing any wildfires that may occur. The Contractor shall continuously watch all open burning operations until all fires have burned out or have been extinguished by water or covered by soil.

All excavation and earthfill related to the disposal operation shall be considered incidental to and subsidiary to clearing and grubbing.

(2) Open burning (see definition of “open burning” below) shall conform to the following conditions:

A. Appropriate permits shall be obtained before burning. Burn permits are normally required from the TN Division of Forestry from Oct 15 through May 15. Additional permit requirements may be imposed as conditions warrant.

B. Open burning locations shall be greater than two hundred feet (200’) from a building.

C. The guidance in the brochure “Safe Debris Burning” from the Tennessee Division of Forestry shall be followed.

D. Only wood waste (see definition of “wood waste below”) shall be burned.

Non-woody materials such as the following shall not be burned - tires and rubber products; vinyl siding and shingles; asphalt shingles and other asphalt roofing materials and demolition debris; building material; construction debris and mobile homes; plywood, oriented strand board and treated wood, including railroad ties; asbestos-containing materials, aerosol cans and food

NRCS-Tennessee (1-4) Clay County EWP

Project Number 5068 July 12, 2011 cans, copper wire and electrical wires, plastics and other synthetic materials;

paper products, cardboard and newspaper; household trash; leaves, branches and trees not grown on-site.

E. Priming materials used to facilitate such burning shall be limited to #1 or #2 grade fuel oils.

F. A traffic hazard shall not be caused by the air products generated by the fire.

G. No fire shall be ignited while any air pollution emergency episode is in effect in the area of the burn.

H. Compliance with all the requirements from any agency’s permit and with all other applicable requirements, ordinances, or restrictions is the Contractor’s responsibility and is mandatory.

I. Any debris and/or ashes left from burning operations shall be disposed of by burying at locations within the waste disposal area shown on the drawings, or as approved by the Engineer. All residue materials shall be buried at least two (2) feet below natural ground in a location that will NOT be under any structure or under any structural earthfill. Earthfill for disposal pits shall be compacted in a maximum of 12 inch lifts with two passes of the earthmoving equipment over the entire fill area to a height 6 inches above surrounding natural ground. All disturbed areas shall be smoothed, transitioned into natural ground, and left in a condition so that the areas can easily be traversed by motorized farm seeding equipment and sloped to drain toward the adjacent ground.

J. If there is not sufficient depth of soil to allow for burial of woody debris, and or ashes left from burning operations, then the remaining debris shall be removed from the site and transported to a public landfill for disposal. The Contractor is responsible for all costs of disposal including tipping and other fees.

K. The Contractor is solely liable and responsible for any and all damages and costs resulting from the burning operation and any resulting wildfire.

L. A fire-proof zone shall be created around all burn piles of the width recommended by the TN Division of Forestry, but not less than 20 feet, before burning is commenced.

“Open burning” is defined as the burning of any matter under such conditions that products of combustion are emitted directly into the open atmosphere without passing directly through a stack. Open burning includes, but is not limited to, fires located or burning in a pile on the ground, a barrel, a fire pit, or other semi-enclosure.

“Wood Waste” is defined for this contract as any product which has not lost its basic character as wood, such as bark, sawdust, chips and chemically untreated lumber whose “disposition” by open burning is to solely get rid of or destroy.

Plant life of an herbaceous nature, such as leaves, whether attached, fallen, and/or collected, evergreen needles, and grasses, will be allowed to be burned.

Additionally, manufactured lumber products, such as plywood, fiberboard, particleboard, and paneling, are not considered “wood waste”. Painted or artificially stained wood is not considered “wood waste”.

NRCS-Tennessee (1-5) Clay County EWP

Project Number 5068 July 12, 2011

2) In Section 5, Disposal, Any non-woody materials encountered or brought to the site by the Contractor or any Subcontractor shall be removed from the site and transported to a public landfill for disposal. The Contractor is responsible for all costs of disposal including tipping and other fees.

3) Clearing shall be Class C as specified in Section 2 and shall only be required within the clearing limits as shown on the drawings and marked in the field.

4) In Section 7, Measurement and payment, payment shall be by method 1. Payment for each area can only be submitted upon completion of that area. Payment will be made to the nearest

0.1 acre. Such compensation for Clearing will constitute full payment for all items included in Bid Item #2 – Clearing and listed above.

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Chapter 2 National Standard Construction Specifications Part 642

National Engineering Handbook

(210-VI-NEH, January 2009)

5–1

Construction Specification 5—Pollution Control

1. Scope 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. Material All material furnished shall meet the requirements of the material specifications listed in section 8 of this specification.

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

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

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

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

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

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

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

Sediment filters—Straw bale filters or geotextile sediment fences trap sediment from areas of limited runoff. Sediment filters shall be properly anchored to prevent erosion under or around them. These filters are temporary and shall be removed and the area restored to its original condition when they are no longer required or when permanent measures are installed.

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

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

5–2

4. Chemical pollution The contractor shall 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 washwater, or asphalt, produced as a by-product of the construction activities. Pollutants shall be disposed of in accordance with appropriate State and Federal regulations. At the completion of the construction work, tanks, barrels, and sumps shall be removed and the area restored to its original condition as specified in section 8 of this specification. Sump removal shall be conducted without causing pollution.

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

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

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

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

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

7. Measurement and payment 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 8 of this specification, measurement for payment will not include water or chemical suppressants that are used inappropriately or excessive to need. Such payment will constitute full compensation for the completion of the work.

Method 2—For items of work for which lump sum prices are established in the contract, payment is made as the work proceeds and 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.

5–3

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 shall 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.

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 8 of this specification.

NRCS-Tennessee (5-5) Clay County EWP

Project Number 5068 July 12, 2011

8. 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 # 8, Pollution Control – Silt Fence.

(1) This item consists of furnishing, installation, maintenance, repair, re-installation and removal of the geotextile silt fences as shown on the drawings and as staked in the field.

(2) Silt fence locations shall be selected that prevent unfiltered runoff from entering drainage ways. In addition, all stockpiles of earthen materials shall have silt fence placed on the down gradient side of the pile or at the work limits perimeter.

(3) The geotextile silt fence shall be of a type expressly manufactured for use as a silt fence and shall be equipped with top reinforcement and a six (6) inch flap at the bottom for burial. The fabric shall be firmly attached to the post by the manufacturer, or if attached in the field, it shall be done in accordance with the manufacturer’s recommendations. Wire ties through the geotextile which wrap or twist around the post shall not be used.

(4) Posts shall be hardwood or steel and the fabric shall be attached to the post in accordance with the manufacturer’s recommendations. Posts shall extend above the top of the fabric and shall be driven into the ground at least twelve (12) inches below the bottom of the excavated trench where the fabric is buried.

Wood posts shall be one and one-half by one and one-half (1 ½ X 1 ½) inch oak of the minimum length required for the specified fabric. Steel posts shall be of the type specifically manufactured for or recommended by the manufacturer of the silt fence.

(5) The minimum fence height prior to burial shall be three (3) feet.

(6) The Contractor shall maintain the silt fence and periodically remove sediment so that the fence will temporarily retain water and function properly for the duration of construction. Mandatory removal of sediment is required when the design capacity of the silt fence has been reduced by 50 percent. Upon completion of construction the accumulated sediment shall be excavated, spread within the work limits and permanently vegetated as specified in Construction Specification 6, Seeding, Sprigging, and Mulching. Silt fences shall be removed and disposed of off-site in a lawful manner upon completion of construction.

(7) In Section 3, Erosion and Sediment Control Measures and Works, the Contractor shall provide acceptable temporary erosion control methods as needed such as, but not limited to silt fence, temporary mulching, and dust control at access and haul roads, and other locations as necessary.

NRCS-Tennessee (5-5) Clay County EWP

Project Number 5068 July 12, 2011

(8) The Contractor shall provide such additional measures as necessary to abate pollution should his/her operations cause pollution that cannot be controlled by the stated measures

(9) In Section 7, Measurement and Payment, Method 1 will apply. Such compensation for Pollution Control, Silt Fence will constitute full payment for all items included in Bid Item # 8 – Pollution Control, Silt Fence.

b. Subsidiary Item, Sanitary Facilities.

(1) Sanitary facilities shall be located at each project site while workers are present.

Sanitary facilities shall be located conveniently close to the workers to encourage their use by the workers. Sanitary facilities shall be adequately maintained in a safe and sanitary condition with adequate supplies and serviced at least once per week.

(2) Contractor shall provide one portable sanitation facility for every ten employees on site.

(3) In Section 7, Measurement and Payment, No separate payment will be made for sanitary facilities. Compensation for sanitary facilities will be included in the payment for Bid Item #1 – Mobilization and Demobilization.

Construction Specification 6—Seeding, Sprigging, and Mulching

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

Seed shall 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.

Seed that has become wet, moldy, or otherwise damaged in transit or storage will not be accepted.

The percent of noxious weed seed allowable shall be as defined in the current State laws relating to agricultural seeds. Each type of seed shall be delivered in separate sealed containers and fully tagged unless exception is granted in writing by the contracting officer.

Fertilizer—Unless otherwise specified, the fertilizer shall be a commercial grade fertilizer. It shall meet the standard for grade and quality specified by State law. Where fertilizer is furnished from bulk storage, the contractor shall furnish a supplier's certification of analysis and weight.

When required by the contract, a representative sample of the fertilizer shall be furnished to the contracting officer for chemical analysis.

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

Lime and other soil amendments—Lime shall consist of standard ground agriculture limestone, or approved equivalent. Standard ground agriculture limestone is defined as ground limestone meeting current requirements of the State Department of Agriculture. Other soil amendments shall meet quality criteria and application requirements specified in section 7.

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

Straw mulch material—Straw mulch shall consist of wheat, barley, oat or rye straw, hay, grass cut from native grasses, or other plants as specified in section 7. The mulch material shall be air-dry, reasonably light in color, and shall not be musty, moldy, caked, or otherwise of low quality.

The use of mulch that contains noxious weeds is not permitted. The contractor shall provide a method satisfactory to the contracting officer for determining weight of mulch furnished.

Other mulch materials—Mulching materials, such as wood cellulose fiber mulch, mulch tackifiers, synthetic fiber mulch, netting, and mesh, are other mulching materials that may be required for specialized locations and conditions. These materials, when specified, must be accompanied by the manufacturer's recommendations for methods of application.

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

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

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

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

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

5. Seeding, sprigging, fertilizing, mulching, and stabilizing All seeding or sprigging operations shall be performed 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 shall be as specified in section 7. Unless otherwise specified, seeding or sprigging shall be accomplished within 2 days after final grading is completed and approved.

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

The rate, amount, and kind of mulching or mesh shall be as specified in section 7. Mulches shall be applied uniformly to the designated areas. They shall be applied to areas seeded not later than 2 working days after seeding has been performed. Straw mulch material shall be stabilized 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 shall 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 shall be operated on the contour. Hand methods shall be used where equipment cannot safely operate to perform the work required.

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

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

6. Measurement and payment 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 7 and the area 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.

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.

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.

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 7.

Payment of the lump sum contract price will constitute full compensation for completion of the work.

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

Compensation for any item of work described in the contract, but not listed in the bid schedule is item(s) to which they are made subsidiary are identified in section 7.

NRCS-Tennessee (6-4) Clay County EWP

7. Items of work and construction details

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

a. General

The following construction details shall be applied to the applicable items of work to be performed in conformance with this specification.

(1) Construction work shall be scheduled so that vegetation may be accomplished for individual areas as the work progresses. Vegetation shall be applied within two (2) days after final grading, unless otherwise approved by the COTR.

In areas of the construction site where construction activities have either temporarily or permanently ceased, temporary or permanent stabilization measures, as appropriate, shall be completed no later than 15 calendar days after the construction activity in that portion of the site has temporarily or permanently ceased. Temporary and permanent seeding requirements shall be as specified in this construction specification.

(2) In the event that the applicable environmental permit(s), such as the TN Aquatic Resources Alteration Permit (ARAP), has a more stringent timeframe for stabilization activities than stated above, the most stringent timeframe will apply.

(3) The Contractor shall be responsible for establishing a full stand of permanent vegetation on all disturbed areas that is sufficient to stop erosion, as determined by the COTR. If necessary, the Contractor shall periodically water the seeded areas to encourage a quick and healthy stand of permanent vegetation.

(4) After the initial application of vegetation and watering, all supplemental watering, repairs and / or re-application of vegetation and mulching that is necessary to develop a full stand of vegetation shall be included in the payment for Bid Item # 9, Protective Cover, Vegetation, Sod.

b. Bid Item # 9, Protective Cover, Vegetation, Sod

(1) This item consists of seedbed preparation, the application of lime, fertilizer, and the installation of sod to establish permanent vegetation at any bare soil areas disturbed by the work, including ruts created by the construction equipment, as shown on the drawings. The extent and time each area is to be treated will be determined by the

COTR.

(2) All ruts created by construction of the project shall be filled in and left in a smooth condition prior to seedbed preparation. Until disturbed areas are permanently seeded, the pollution control measures as specified in Construction Specification 5, Pollution Control, shall remain in-place and properly maintained

NRCS-Tennessee (6-5) Clay County EWP

Project Number 5068 July 12, 2011

(3) Agricultural limestone shall be applied uniformly at the rate of two (2) tons per acre, or if only a small area, at the rate of nineteen (19) pounds of 15-15-15 per 1,000 square feet over the areas designated for seeding prior to seedbed preparation.

Lime shall be protected against hardening and caking. Caked or hardened lime shall be replaced or pulverized to its original condition before being used. Agricultural limestone shall be applied prior to seedbed preparation.

(4) Fertilizer shall be applied uniformly at the rate of eight hundred (800) pounds of 15-

15-15 per acre, or if only a small area, at the rate of nineteen (19) pounds of 15-15-15 per 1,000 square feet.

Fertilizer shall be protected against hardening, caking, or loss of plant food values.

Caked or hardened fertilizer shall be replaced or pulverized to its original condition before being used.

Fertilizer shall be applied prior to seedbed preparation.

(5) All seed shall conform to the material requirements contained in the current

Tennessee Seed Law. No seed shall be less than 80% pure live seed of the current year. No “Below Standard” seed will be accepted.

(6) Areas designated for seeding shall be prepared in accordance with Section 4 of this

(7) All debris, woody or non-woody, and rubbish shall be removed prior to seeding as specified in Construction Specification 1, Clearing.

(8) Inoculants shall be required on all legumes and shall conform to the material requirements contained in the current Tennessee Seed Law.

(9) In Section 3, Seeding Mixtures, Sods, Sprigs and Dates of Planting, sod shall be installed within the dates shown below, at the locations shown on the drawings, or as directed by the COTR. Sod shall be Common Bermuda, Cynodon dactylon, and shall be planted from April 15 to November 15.

(10) Sod shall be nursery grown and machine cut at a uniform thickness of ¾ inch, excluding top growth and thatch. Care shall be exercise to retain the soil on the root system during sod harvesting, hauling, and planting. Each individual sod piece shall be strong enough to support its own weight when lifted by the ends. Broken pads, irregularly shaped pieces, and torn or uneven ends will be rejected. Wood pegs and wire staples for anchorage shall be as recommended by the sod supplier.

(11) Place sod a maximum of thirty-six hours after initial harvesting. Do not plant when the ground is frozen, muddy, or when air temperatures exceed 90 degrees Fahrenheit.

(12) Prior to the commencement of the sodding operation, the Contractor and COTR shall verify that the placing of topsoil, smooth grading and compaction requirements have been completed in accordance with Construction Specification 26 – Topsoiling.

All debris, roots, rocks, and any objects that will interfere with the establishment of

NRCS-Tennessee (6-6) Clay County EWP

Project Number 5068 July 12, 2011 vegetation shall be removed. Soil shall be raked and watered prior to installing sod.

Sufficient water shall be applied to moisten soil to a depth of one (1) inch and kept moist until sod is placed.

(13) Lay sod with the long edge perpendicular to the contour. Joints shall be butted tightly, and rows shall be staggered. Begin sodding at the bottom of the slope and work uphill. Air pockets shall be eliminated by rolling or tamping immediately after placement. Frayed edges shall be trimmed. Segments of rolled sod will have a maximum length of four (4) times the same segments width.

(14) The Contractor shall be responsible for developing and maintaining a watering schedule that provides the moisture necessary for vigorous sod growth and root development into the soil. The Contractor shall also:

a) Within twenty-four hours of placing sod, an initial watering shall be applied at a rate sufficient to thoroughly wet the soil below the sod to a minimum depth of four (4) inches. The watering intensity and duration shall be such that soil erosion and instability does not occur.

b) Maintain optimum moisture for at least two weeks by evenly applying a minimum of one half (1/2) inch of water, as frequently as necessary, to keep the sod and soil below it moist. Watering is not required if an equivalent amount of rainfall has occurred and the sod and soil below are moist. Watering trucks and other vehicles shall not be driven over the sod placement.

c) After the sod begins to take root, apply a minimum of 1.5 inches of water per week over all sodded areas for at least an additional four (4) weeks or until a time agreed upon by the Contractor and the COTR. Watering is not required if an equivalent amount of rainfall has occurred and the sod and soil below the sod are most. Watering trucks and other vehicles shall not be driven over the sod placement areas.

d) Place at least one (1) standard rain gauge within the work limits and within the sod treatment area. Record date of rainfall and inches of rainfall to the nearest

0.1 inch that was collected in the gauge. Empty the gauge after every recording.

Keep such records beginning with the date of sod placement until a time agreed upon by the Contractor and the COTR. Rainfall data shall be made available to the COTR during the watering period.

(15) On sloped areas too steep or confined for normal farm equipment operation, the entire area shall be treated with tracked equipment operated up and down the slope in such a manner that the indented cleat portion of the tread marks are approximately on the contour of the slope and cover the entire sloped surface, limestone and fertilizer applied, and track the entire area as described above. If the slope is too steep for tracking by equipment, the Contractor shall choose to treat the entire area by hand.

NRCS-Tennessee (6-7) Clay County EWP

Project Number 5068 July 12, 2011

(16) In Section 6, Measurement and Payment, Method 1 will apply except that the payment will be made to nearest (One) square yard.. Such compensation for Protective Cover, Vegetation, Sod will constitute full payment for all items included in Bid Item # 9 – Protective Cover, Vegetation, Sod and all subsidiary items:

Topsoiling.

c. Subsidiary Item, Temporary Seeding

(1) This item consists of seedbed preparation, and application of seed and mulch to establish temporary vegetation on all temporary earthen slopes, all disturbed areas, and all earthen stockpiles that are not actively under construction. The COTR will determine the extent of areas for application of temporary seeding.

(2) All seed shall conform to the material requirements contained in the current

Tennessee Seed Law. No “Below Standard” seed will be accepted.

(3) In Section 3, Seeding Mixtures, Sod, Sprigs and Dates of Planting, The following per acre mixture shall be utilized according to the appropriate seeding dates:

August 15 – April 1 (Temporary Seeding)

(a) Winter Wheat or Small Grain Rye - 3 bushels seed/acre

(4) In Section 5, Seeding, Sprigging, Fertilizing, Mulching, and Stabilizing, The applicable areas shall be scarified by tracking (up and down the slope with tracked equipment) on the contour, half the seed applied, mulch applied, track the entire area on the contour, apply the remaining seed, and track the entire area on the contour or other methods approved by the COTR. All seeding methods shall result in an even distribution of seed over the disturbed areas.

(5) Temporary seeding shall be re-applied or maintained as necessary to provide adequate vegetation coverage on all stockpiles after creation and manipulation, all disturbed areas, and all temporary slopes that will not be permanently seeded within 15 days of the last construction activity. See Construction Specification 5, Pollution Control, for additional requirements.

(6) Mulch shall be small grain straw uniformly applied to the seeded areas at a rate of one and one-half (1½) tons per acre. Mulch may be spread by hand or with a mulch-spreading machine. Mechanical mulch stabilization may be accomplished through the use of a tackifier or netting if approved by the COTR.

In Section 6, Measurement and Payment, no separate payment will be made for Temporary Seeding. Compensation for Temporary Seeding will be included in the payment for Bid Item # 9, Protective Cover, Vegetation, Sod.

Construction Specification 8—Mobilization and Demobilization

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.

2. Equipment and material Mobilization shall include all activities and associated costs for transportation of contractor's personnel, equipment, and operating supplies to the site; establishment of offices, buildings, and other 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 4 of this specification.

Demobilization shall include 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.

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.

3. Payment 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.

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.

NRCS-Tennessee (8-2) Clay County EWP

Project number 5068 June 8, 2011

4. 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 #1 - Mobilization and Demobilization

(1) This item shall consist of the mobilization and demobilization of the Contractor's forces and equipment necessary to perform the work required under the contract. This item shall also include all work required to provide and maintain temporary construction access to the site.

Payment for Bid Item #1 - Mobilization and Demobilization shall be contracted lump sum payment with partial payments as work proceeds as described above in Section 3. Payment.

This Bid Item shall also include Subsidiary Items Sanitary Facilities and Traffic Control.

Construction Specification 9—Traffic Control

The work shall consist of establishing traffic control and maintaining safe, convenient use of public roads and rights-of-way.

2. Traffic and access The contractor's operations shall cause no unnecessary inconvenience to the public. The public rights-of-way shall be maintained at all times unless interruption is authorized by proper local authority. Contractor's authorized closing or detour plans shall be provided to the engineer for approval.

Safe and adequate access shall be provided and maintained to all public protection devices and to all critical utility control locations. Facility access shall be continuous and unobstructed unless otherwise approved.

3. Storage of equipment and material in public streets Construction materials and equipment shall 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 shall be provided for the duration of the activity. Any associated expense for this activity is the responsibility of the contractor.

Excavated material, including suitable material that is intended for adjacent trench backfill or other earth backfill as specified in section 5 of this specification, shall 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 shall be removed from the site as soon as possible. Any spillage shall be removed from roadways before they are used by the public.

4. Street closures, detours, and barricades The contractor shall comply with the requirements of all applicable responsible units of government for closure of any street, road, or highway. The contractor shall provide the required barriers, guards, lights, signs, temporary bridges, and flaggers together with informing 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 shall furnish, install, and, upon completion of the work, promptly remove all signs, warning devices, and other materials used in the performance of this work.

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

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

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 7 of this specification.

5. General and specific references All signs, signals, barricades, use of flaggers, and other traffic control and public safety devices shall 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/or OSHA Construction Industry Standards (29 CFR Part 1926), Subpart G, Signs,…