Coffee_Graham_Specs_signed.pdf

PAGE INTENTIONALLY LEFT BLANK

(210-VI-NEH, May 2001)

Construction Specification 2—Clearing and Grubbing

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

2. Protection of existing vegetation Trees and other vegetation designated to remain undisturbed shall be protected from damage throughout the duration of the construction period. Any damages 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 drip line 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, similar condition, and like size unless otherwise 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 or backfilled as soon as possible to prevent the roots from drying out.

3. Marking The limits of the area(s) to be cleared and grubbed 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 trunk about 6 feet above the ground surface.

4. Clearing and grubbing All trees not marked for preservation and all snags, logs, brush, stumps, shrubs, rubbish, and similar materials shall be cleared from within the limits of the designated areas. Unless otherwise specified, all stumps, roots, and root clusters that have a diameter of 1 inch or larger shall be grubbed out to a depth of at least 2 feet below subgrade for concrete structures and 1 foot below the ground surface at embankment sites and other designated areas.

5. Disposal All materials cleared and grubbed from the designated areas shall be disposed of at locations shown on the drawings or in a manner specified in section 7. The contractor is responsible for complying with all local rules and regulations and the payment of any and all fees that may result from disposal at locations away from the project site.

6. Measurement and payment Method 1—For items of work for which specific units prices are established in the contract, the cleared and grubbed area is measured to the nearest 0.1 acre. Payment for clearing and grubbing is made for the total area within the designated limits at the contract unit price. Such payment will

2-1 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 and grubbed area is measured to the nearest full station (100 feet) along the line designated on the drawing or identified in the specifications. Payment for clearing and grubbing is made for the total length within the designated limits at the contract unit price. 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, each tree, stump, and snag having a diameter of 4 inches or larger and each log having a diameter of 4 inches or larger and a length of 10 feet are measured before removal. The size of each tree and snag is determined by measuring its trunk at breast height above the natural ground surface. The size of each log is determined by measuring the butt and by measuring its length from butt to tip.

The size of each stump is measured at the top. Diameter is determined by dividing the measured circumference by 3.14.

Payment for clearing and grubbing of each tree, stump, and snag having a diameter of 4 inches or larger and each log having a diameter of 4 inches or larger and a length of 10 feet or larger is made at the contract unit price for its size designation as determined by the following schedule:

Measured diameter Size designation

(in) (in)

4 to 8 6

8 to 12 10

12 to 24 18

24 to 36 30

36 to 60 48

Over 60 60

The sum of such payments shall constitute full compensation for clearing and grubbing (including the clearing and grubbing of smaller trees, stumps, snags, logs, brush, shrubs, and roots), applicable permits and associated fees, and rubbish removal. Such payment 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 and grubbing is made at the contract lump sum price. 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—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 will be 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 7.

2-2

7. 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, Clearing and Grubbing

1) This item of work shall consist of cutting, removal and/or disposal of all trees, limbs, stumps, woody materials, debris, junk, and garbage from the structure (ditch plug, dike, excavation areas, ect) areas and spoil area. Clearing and Grubbing limits shall not be greater than 25 feet from the outside edge of the works of improvement unless approved by the COR (Government Representative). Foundation and embankment areas shall have all stumps, roots, and vegetation removed to enhance bonding between the foundation and embankment.

Borrow areas shall also have all stumps, roots, and vegetation removed prior to excavation.

2) All material cleared from the area shall be disposed of by burning or hauling to an appropriate landfill. All burning shall conform to state and federal laws and regulations. All woody debris shall be disposed of by burning. The contractor shall keep sufficient labor and equipment in the immediate vicinity of the open burning operations that are capable of quickly containing and extinguishing any wildfires that may occur. The personnel shall continuously watch all open burning operations until all fires have burned out or have been extinguished by water or covered by soil. 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 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 contaminants 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 buried and the residue covered as specified in Section 6, Disposal, of this specification.

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

2-3

K. A fire-proof zone shall be created around all burn piles of the width recommended by the TN Division of Forestry before burning is commenced.

i. “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.

ii. “Wood Waste” is defined 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, are not considered “wood waste”. 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

3) Post burning residue shall be buried on-site or hauled off-site to the local landfill. Residue burial sites shall have a minimum of 2 feet of compacted earthfill cover over the buried residue. The earthfill cover shall be spread in not greater than six (6) inch lifts and compacted by at least four passes of the tracks or wheels of the placement equipment over the entire fill surface. The earthfill cover shall be placed a few inches higher than the surrounding ground surface and graded to drain and transition into the surrounding ground.

4) The contractor is responsible for all tipping fees.

5) All non-woody debris within the work limits such as rubbish, metal, insulation, building materials, house contents, appliances, plastic bottles, bottle caps, and any other non-woody debris shall be removed and disposed of in a landfill.

6) Any hazardous material encountered, such as batteries, used motor oil, scrap tires, white goods, any item which could contain CFC’s, etc., shall be loaded and hauled to an approved hazardous waste disposal site.

7) In Section 6, Measurement and Payment, payment shall be made by Method 1. Such compensation for clearing and grubbing shall constitute full payment for all items included in Bid item 1, Clearing and Grubbing.

2-4

Chapter 2 National Standard Construction Specification Part 642 National Engineering Handbook

(210-VI-NEH, January 2014) 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.

The following BioPreferred® product categories are applicable to this specification: — mulch and compost materials erosion control materials fertilizers dust suppressants agricultural spray adjuvants

2. Material

Silt fence shall conform to the requirement of Materials Specification 592, Geotextile. All other 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 silt fences trap sediment from areas of limited runoff. Sediment filters shall be properly anchored to prevent erosion under or around them. Silt fences shall be installed and maintained in accordance with ASTM D6462. 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 (210-VI-NEH, January 2014)

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.

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.

(210-VI-NEH, January 2014) 5–3

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

a) General

1) The Contractor shall perform the work in a manner that will reduce erosion, minimize the possibility of sediments and other pollutants being released into the waters of the state, and create a minimum level of pollution consistent with standard construction operations.

2) The Contractor shall perform work in such a manner that all Local, State, and Federal regulations regarding pollution (i.e. air, water, etc.) are adhered to.

3) In Section 3, Other, the Contractor shall provide acceptable temporary erosion control measures on an as needed basis. These measures shall include, but not limited to:

a) Straw bales, temporary mulching, culverts or bridging, contouring, water bars, and dust control at access and haul roads, stream crossings, side inlet drainages and other location as necessary.

b) Bid Item 2, Pollution Control, Silt Fence

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

2) Silt fence locations shall be selected that prevent unfiltered runoff from entering drainage ways.

3) The geotextile silt fence shall conform to the requirements of the latest edition of the AASHTO Designation M288.

4) 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.

5) Post shall be hardwood or steel and the fabric shall be attached to the post in accordance with the manufacturer’s recommendations. Post 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 post 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 post shall be of the type specifically manufactured for or recommended by the manufacturer of the silt fence.

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

7) 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.

8) In Section 7, Measurement and Payment, Method 1 shall apply. Such compensation for silt fence shall constitute full payment for all items included in Bid Item 2, Pollution Control, Silt Fence.

(210-VI-NEH, January 2014) 6–1

+Construction Specification 6—Seeding, Sprigging, and Mulching

1. Scope 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.

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

— Mulch and compost materials

— Erosion control materials

— Fertilizers

— Agricultural spray adjuvants

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.

6–2 (210-VI-NEH, January 2014)

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.

(210-VI-NEH, January 2014) 6–3

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 included in the payment for the item of work to which it is made subsidiary. Such items and the item(s) to which they are made subsidiary are identified in section 7.

6–4 (210-VI-NEH, January 2014)

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

a) Bid Item 3, Vegetation and Mulching

1) This item shall consist of the seedbed preparation and the application of lime, fertilizer, seed, and mulch to establish perennial vegetation at the travel lanes and at any other non-woods grassed or bare areas disturbed by the work. The extent and time each area is to be treated will be determined by the COR (Government Representative). 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.

2) All ruts created by construction of the project shall be filled in and left in a smooth condition prior to seedbed preparation.

3) Agricultural limestone shall be applied uniformly at the rate of two (2) tons per acre or if only a small area use ninety-two (92) pounds per 1,000 square feet. Lime shall be protected against hardening and caking.

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

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 use 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.

5) Agricultural limestone and fertilizer shall be applied prior to seedbed preparation.

6) Areas designated for seeding shall be prepared in accordance with Section 4 of this specification. All trash and rubbish shall be removed prior to seeding.

7) All disturbed areas except the dikes, auxiliary spillways and spoil area 4 shall be seeded with the following mixtures based on seeding dates:

April 15 to August 15 15 pounds of Buckwheat, 6 pounds of Sunflower, and 15 pounds of White Proso Millet.

August 16 to November 1 25 pounds of Wheat 50 pounds of Annual Rye 8 pounds of Crimson Clover

All Other Dates 50 pounds of Cereal Rye, 75 pounds of Wheat, 15 pounds of Buckwheat, and 10 pounds of Brown Top Millet.

8) All seeding shall be done immediately after the completion of grade work unless otherwise approved by the

COR.

9) 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.

(210-VI-NEH, January 2014) 6–5

10) Immediately after broadcasting seed, seed shall be partially covered by cultipacker, drag, bulldozer tracks up and down slope, or other approved means.

11) Mulch shall be small grain straw applied uniformly to seeded areas at a rate of two tons (2.0) tons per for areas designated for seeded vegetation. Mulch shall be crimped using a crimper or the tracks of the construction equipment such as a bulldozer or front-end loader. Due to environmental considerations, only nonasphaltic tackifiers shall be used.

12) Seeding and mulching by methods other than described herein shall be submitted to the COR for approval prior to application.

13) In Section 6, Measurement and Payment, Method 1 will apply. Such compensation for seeding, sprigging, and mulching will constitute full payment for all items included in Bid Item 3, Vegetation and Mulching.

b) Bid Item 4, Vegetation, Sod

(1) This item consists of seedbed preparation, the application of lime, fertilizer, and the installation of sod to establish permanent vegetation on the dikes and spoil area 4. The extent and time each area is to be treated will be determined by the COR.

(2) Agricultural limestone shall be applied uniformly at the rate of two (2) tons per acre, or if only a small area, use ninety-two (92) pounds per 1,000 square feet. 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.

(3) 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.

(4) 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.

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

(6) All debris, woody or non-woody, and rubbish shall be removed prior to seeding as specified in Construction Specification 2, Clearing and Grubbing.

(7) 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. Sod shall be Tall Fescue Blend and shall be planted from April 1 to November15.

(8) 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.

(9) 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.

(10) Prior to the commencement of the sodding operation, the Contractor and COR shall verify that the

6–6 (210-VI-NEH, January 2014) 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 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.

(11) 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.

(12) 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 soil moisture for at least six weeks by evenly applying a minimum of one half (1/2) inch of water every three days 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) 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 and ending at the same time frame stated in 12(c). Rainfall data shall be made available to the COR during the watering period.

d) If sod is dormant, no watering is required.

(13) In Section 6, Measurement and Payment, shall be to the nearest square yard of surface area of the sod, measured horizontal to the constructed ground surface. Such compensation for Protective Cover, Vegetation, Sod shall constitute full payment for all items included in Bid Item # 4 – Protective Cover, Vegetation, Sod.

Construction Specification 8—Mobilization and Demobilization

1. Scope 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.

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 5, Mobilization and Demobilization

1) This item shall consist of the mobilization and demobilization of the Contractors 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 construction site and any work required to repair or replace damaged fencing, gates, etc. necessary for site access.

2) The staging area shall be located on the Southeast side of the project, in the area between spoil disposal areas 3, 4 and 5 and the southern excavation ditch.

3) Fences, gates, and other such items which must be cut or removed for access or are damaged as a result of the Contractor’s operations shall be repaired or replaced by the Contractor to the equal or better quality to that which existed prior to the start of work. Where the Contractor has to remove existing gate fence posts, if the removed post is damaged and cannot be reinstalled, the replacement shall be at a minimum 8 inch diameter by 8 foot long pressure treated post. Concrete shall be installed 6 inches thick around the sides and bottom of the post for the last 2 feet of post length only if the removed post had concrete around it.

Gates destroyed by the Contractor shall be replaced with metal gates of the size and quality locally available that is the closest match to that being replaced. The Contractor shall supply all hardware and labor necessary to re-install or replace damaged fencing, posts, gates, etc.

Line posts and fencing damaged by the Contractor’s operations shall be replaced with like materials and methods.

4) Payment shall be maybe in accordance with Section 3, Payment. Such compensation for mobilization and demobilization shall constitute full payment for all items included in Bid Item 5 – Mobilization and Demobilization.

11-1

Construction Specification 11—Removal of Water

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

2. Diverting surface water The contractor shall install, maintain, and operate all cofferdams, channels, flumes, sumps, and all other temporary diversion and protective works needed to divert streamflow and other surface water through or around the construction site. Control of surface water shall be continuous during the period that damage to construction work could occur. Unless otherwise specified and/or approved, the diversion outlet shall be into the same drainageway that the water would have reached before being diverted.

The contractor shall furnish the contracting officer, in writing, a proposed plan for diverting surface water before beginning any construction activities for which a diversion is required, unless waived in Section 8 of this specification. Acceptance of this plan or the waiving of the plan requirement will not relieve the contractor of the responsibilities related to this activity during the process of completing the work as specified.

3. Dewatering the construction site Foundations, cutoff trenches, and all other parts of the construction site shall be dewatered and kept free of standing water and muddy conditions as necessary for the proper execution of the work. The contractor shall furnish, install, operate, and maintain all drains, sumps, pumps, casings, well points, and all other equipment required to properly dewater the site as specified.

Dewatering systems that cause a loss of soil fines from the foundation areas will not be permitted.

The contractor shall furnish the contracting officer, in writing, a proposed plan for dewatering before commencing with any construction activity for which dewatering may be required, unless waived in Section 8 of this specification. Acceptance of this plan or the waiving of the plan requirement will not relieve the contractor of the responsibilities for completing the specified work.

4. Dewatering borrow areas The contractor shall maintain all borrow areas free of surface water or otherwise provide for timely and effective removal of surface and subsurface water that accumulates within the borrow area, unless waived in Section 8 of this specification. Borrow material shall be processed as necessary to achieve proper and uniform moisture content at the time of placement.

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

11-2

5. Erosion and pollution control Removal of water from the construction site, including the borrow areas, shall be accomplished so that erosion and the transporting of sediment and other pollutants are minimized. Dewatering activities shall be accomplished in a manner that the water table water quality is not altered.

Pollution control activities shall not conflict with the requirements of Construction Specification 5, Pollution Control, if it is a part of this contract.

6. Removal of temporary works When temporary works are no longer needed, the contractor shall remove and return the area to a condition similar to that which existed before construction. Areas where temporary works were located shall be graded for sightly appearance with no obstruction to natural surface waterflows or the proper functioning and access to the works of improvement installed. The contractor shall exercise extreme care during the removal stages to minimize the loss of soil sediment and debris that was trapped during construction.

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

7. Measurement and payment Method 1—Items of work listed in the bid schedule for removal of water, diverting surface water, and dewatering construction sites and borrow areas are paid for at the contract lump sum prices.

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

Method 2—Items of work listed in the bid schedule for removal of water, diverting surface water, dewatering construction sites, and dewatering borrow areas are paid for at the contract lump sum prices. Such payment will constitute full compensation for furnishing, installing, operating, and maintaining the necessary trenches, drains, sumps, pumps, and piping and for all labor, equipment, tools, and all other items necessary and incidental to the completion of the work. The exception is that additional payment for pumping to dewater borrow areas and the removal of water will be made as described in the following paragraph.

If pumping to…