Specifications-HawkisnCo-LambWRP-Signed.pdf

HAWKINS CO WRP CONSTRUCTION SPECIFICATION 2 ‐ Page 1

LAMB WETLAND HYDROLOGY RESTORATION

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

HAWKINS CO WRP CONSTRUCTION SPECIFICATION 2 ‐ Page 2 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.

HAWKINS CO WRP CONSTRUCTION SPECIFICATION 2 ‐ Page 3

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 2, Clearing and Grubbing.

(1) This item consists of all work necessary to prepare the site for grading operations. The work shall consist of removing and disposing of the trees, brush, stumps, roots, logs, shrubs, leaves, and vines in and the proposed dike location, the spillway locations, the fence locations, the tile break locations, and the borrow area locations. All materials greater than one (1) inch in diameter shall be removed from the Clearing and Grubbing area where underlying material is to be used for earthfill. Clearing and grubbing shall be completed prior to excavation, earthfill, tile break, and fencing operations.

(2) The Contractor shall clear and grub areas only within the work limit lines where necessary to perform the required work. The work limit lines are shown on the drawings and marked in the field. Care shall be taken not to damage any tree that is not designated for removal. Any vegetation and trees that are damaged that are outside of the work limit lines shall be removed and disposed of only if concurred by the COR and in a manner that is acceptable to the COR.

(3) 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 COR. 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.

(4) 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.

HAWKINS CO WRP CONSTRUCTION SPECIFICATION 2 ‐ Page 4

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 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 COR. 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

HAWKINS CO WRP CONSTRUCTION SPECIFICATION 2 ‐ Page 5 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.

(5) 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.

(6) In Section 6, Measurement and Payment, Method 4 will apply. Partial payment will be made based on an estimated percentage of the work completed.

Such compensation for Clearing and Grubbing will constitute full payment for all items included in Bid Item #2 – Clearing and Grubbing.

HAWKINS CO WRP

LAMB WETLAND HYDROLOGY RESTORATION CONSTRUCTION SPECIFICATION 5 - Page 1

Construction Specification 5—Pollution Control

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.

LAMB WETLAND HYDROLOGY RESTORATION CONSTRUCTION SPECIFICATION 5 - Page 2

4. Chemical pollution The contractor shall provide watertight tanks or barrels or construct a sump sealed with plastic sheets to dispose of 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. At the completion of the construction work, 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

LAMB WETLAND HYDROLOGY RESTORATION CONSTRUCTION SPECIFICATION 5 - Page 3 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.

8. Items of work and construction details

LAMB WETLAND HYDROLOGY RESTORATION CONSTRUCTION SPECIFICATION 5 - Page 4

8. Items of work and construction details

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

a. Subsidiary Item, Pollution Control.

(1) The contractor shall perform the work in a manner that will reduce and control erosion, minimize the production of sediments and other pollutants to streams, and air during the wetland hydrology restoration activities.

(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 methods as needed such as, but not limited to straw bales, temporary mulching, culverts, contouring, water bars, dust control at access and haul roads, stream crossings, and temporary excavated stilling basins for any water removal required.

(4) In section 4, Chemical Pollution, all fueling and oiling operations shall be conducted in such a manner to avoid the introduction of contaminants to the environment. All waste fuel and oils shall be disposed of off-site as allowed by applicable state and/or federal laws, rules, and regulations. Any areas disturbed by oil or gas spills or leaks shall be returned to the preconstruction condition prior to the seeding operation. Sanitary facilities shall be located at the project site. 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.

(5) In section 7, Measurement and Payment, measurement shall not be required. No separate payment shall be made for this Subsidiary Item. Compensation shall be included in the payment for Bid Item 5, Earthfill, Class C.

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 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.

7. Items of work and construction details

7. Items of work and construction details

a. Bid Item 3, Seeding, Sprigging, and Mulching.

(1) This item consists of seedbed preparation, and application of lime, fertilizer, seed, and mulch to establish permanent vegetation on all disturbed areas. The areas to receive protective cover include earthfill slopes on the dike, excavated areas in the tile break area, access roads, travel lanes, waste soil and waste disposal areas, and all other disturbed areas. This items is not intended to cover vegetative establishment in the bottom of the shallow excavation borrow areas. The extent of areas to be seeded will be determined by the COR.

(2) Agricultural limestone shall be applied uniformly at the rate of two (2) tons per acre 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. Application shall NOT be made with a hydraulic seeding machine, in which case, application may occur after seedbed preparation.

(3) Fertilizer shall be applied uniformly at the rate of one thousand (1,000) pounds of 6-

12-12 per acre or equivalent. 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. Application shall NOT be made with a hydraulic seeding machine.

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

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

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

(6) In Section 3, Seeding Mixtures, Sod, Sprigs and Dates of Planting, Seed mixes shall be utilized within the dates as shown below. The seed mix(s) shall be as shown below:

September 1 – November 30

Tall Fescue - 50 pounds seed/acre White Clover - 2 pounds seed/acre Winter Wheat - 25 pounds seed/acre

(7) In Section 5, Seeding, Sprigging, Fertilizing, Mulching, and Stabilizing, immediately after broadcasting seed, the seed shall be partially covered by cultipacker, drag, or other methods approved by the COTR. The seed covering operation will not be required if the seed is applied with a hydraulic seeding machine. All seeding methods shall result in an even distribution of seed over the disturbed areas.

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, half the seed applied, mulch applied, track the entire area as described above, apply the remaining seed, 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.

(8) Mulch shall be applied to all seeded areas except the auxiliary spillway and the inlet drain area. Mulch shall be small grain straw uniformly applied to the seeded areas at a rate of two (2) tons per acre. Mulch may be spread by hand or with a mulch-spreading machine. Mechanical mulch stabilization (such as a mulch crimper), or dozer tracks up and down the slope is required.

(9) In Section 6, Measurement and Payment, Method 1 will apply. Such compensation for Seeding, Sprigging, and Mulching shall constitute full payment for all items included in Bid Item #3 – Seeding, Sprigging, and Mulching.

b. Bid Item 9, Seeding, Sprigging, and Mulching, Erosion Control Blanket.

(1) This item consists of seedbed preparation, and application of lime, fertilizer, seed, and mulch erosion control blanket on the auxiliary spillway and inlet drain areas.

The extent of areas to receive the erosion control blanket shall include areas shown on the drawings or as otherwise staked in the field by the COR or their representative.

(2) Agricultural limestone shall be applied uniformly at the rate of two (2) tons per acre 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. Application shall NOT be made with a hydraulic seeding machine, in which case, application may occur after seedbed preparation.

(3) Fertilizer shall be applied uniformly at the rate of one thousand (1,000) pounds of 6-

12-12 per acre or equivalent. 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. Application shall NOT be made with a hydraulic seeding machine.

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

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

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

(6) In Section 3, Seeding Mixtures, Sod, Sprigs and Dates of Planting, Seed mixes shall be utilized within the dates as shown below. The seed mix(s) shall be as shown below:

September 1 – November 30

Tall Fescue - 50 pounds seed/acre White Clover - 2 pounds seed/acre Winter Wheat - 25 pounds seed/acre

(7) In Section 5, Seeding, Sprigging, Fertilizing, Mulching, and Stabilizing, immediately after broadcasting seed, the seed shall be partially covered by cultipacker, drag, or other methods approved by the COTR. The seed covering operation will not be required if the seed is applied with a hydraulic seeding machine. All seeding methods shall result in an even distribution of seed over the disturbed areas.

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, half the seed applied, mulch applied, track the entire area as described above, apply the remaining seed, 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.

(8) The erosion control blanket shall have a required functional longevity of up to 12 months.

(9) The matrix filler for the erosion control blanket shall be 100 percent woven straw fiber at a rate of not less than 0.50 lbs./square yard.

(10) The netting for the erosion control blanket shall be a 100% biodegradable with a mesh size no larger than 0.50 inches X 1.0 inches. The blanket shall be sewn together a maximum of 1.50 inch centers with degradable thread.

(11) The erosion control blanket shall meet Type 2.D specification requirements

established by the Erosion Control Technology Council (ECTC) and Federal Highway Administration’s (FHWA) FP-03 Section 713.17.

(12) Installation and anchoring of the erosion control blanket shall be as follows:

If more than 1 roll is required, then the first rolls to be installed shall be the rolls placed at the downstream end of the area. Each additional roll that is needed going upstream shall overlap the lower roll with the upstream roll being placed on top of the lower roll similar to shingles. Each individual roll installation shall be begin at the top of the slope by anchoring the blanket in a 6 inch deep by 6 inch wide trench with approximately 12 inches of blanket extended beyond the up-slope portion of the trench. Backfill and compact the trench only after pinning the blanket in the trench.

Apply the seed to the prepared seedbed and fold remaining blanket back over the filled trench. Secure the blanket with a row of pins spaced a maximum 20 inches apart across the width of the blanket. Next, roll the blanket down the slope securing the blanket by placing pins as shown on Stapling Pattern E at the end of the specification, but at a density of not less than 3.75 staples per square yard. Overlap blankets a minimum of 8 inches, and secure lap with pins on a maximum spacing of 10 inches along the lap. Pin length shall be a minimum of 12 inches. Pin diameter shall be a minimum of 0.2 inches, with a 1.5 inch diameter minimum washer at the top.

(13) In Section 6, Measurement and Payment, Method 1 will apply: For items of work for which specific unit prices are established in the contract, the area treated shall be measures with the slope and the area calculated to the nearest square yard (SY).

Measurement is the surface area covered, not total amount of erosion control blanket required to cover the areas. Such compensation for Seeding, Sprigging, and Mulching shall constitute full payment for all items included in Bid Item #9 – Seeding, Sprigging, and Mulching, Erosion Control Blanket.

LAMB WETLAND HYDROLOGY RESTORATION CONSTRUCTION SPECIFICATION 8 - Page 1

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.

4. Items of work and construction details

LAMB WETLAND HYDROLOGY RESTORATION CONSTRUCTION SPECIFICATION 8 - Page 2

4. Items of work and construction details

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.

(2) In section 3, Payment, payment shall be made at the contracted lump sum price with partial payments as work proceeds as described in Section 3 of this specification. Such compensation shall constitute full payment for all items included in Bid item 1, Mobilization and Demobilization.

LAMB WETLAND HYDROLOGY RESTORATION CONSTRUCTION SPECIFICATION 10 – PAGE 1

Construction Specification 10—Water for Construction

The work consists of furnishing, transporting, measuring, and applying water as specified.

2. Facilities and equipment The contractor shall install and maintain access and haul roads and furnish, operate, and maintain all pumps, meters, piping, tanks, storage, and other facilities required to load, transport, store, distribute, and use construction water as specified.

These facilities shall be equipped with accurate, work dedicated meters; tanks of known volume;

or other devices that provide a correct measurement of water supplied. Meters shall be installed at the point of delivery into water hauling equipment or application system, such as sprinkler systems or flooding systems, as specified.

3. Dust abatement and haul road maintenance Water for dust abatement and haul road maintenance shall be applied to haul roads and other dust producing areas as needed to prevent air pollution or excessive dust (which causes impaired vision on trafficked roads and in work areas) and to maintain the roads in good condition for safe and efficient operation during periods of use. Roads that may be jointly used with the public and by the contractor's equipment shall have dust abatement provisions acceptable to the public entity that has road maintenance responsibility. Compensation for water used for dust abatement and haul road maintenance shall be as specified in Section 8 of this specification.

4. Earthfill, drainfill, and rockfill Water required for proper installation of earthfill, drainfill, and/or rockfill shall be used in the fill materials as specified in the applicable construction specification(s). Compensation for construction water used for earthfill, drainfill, and/or rockfill shall be as specified in Section 8 of this specification.

5. Concrete, mortar, and grout Water required in the mixing or curing of concrete, shotcrete, roller compacted concrete, or other Portland cement mortar or grout shall meet the requirements of the applicable construction specifications and shall be used in conformance with those specifications. Payment for construction water used in these items is covered by the applicable concrete, mortar, or grout specification, or a combination of these.

6. Other construction requiring water Water required and used for other construction activities under this contract, but not specifically covered by this specification shall be considered subsidiary to the item(s) of work that requires its use.

7. Measurement and payment Method 1—For water items for which specific unit prices are established in the contract, the volume of water furnished and used in accordance with the specifications will be measured to the nearest 1,000 gallons.

LAMB WETLAND HYDROLOGY RESTORATION CONSTRUCTION SPECIFICATION 10 – PAGE 2

Payment for water is made at the contract unit price. Such payment will constitute full compensation for the direct costs of water. All other costs necessary for applying water are subsidiary to the items of work they are associated.

Method 2—For water items for which specific unit prices are established in the contract, the volume of water furnished and used in accordance with the specifications will be measured to the nearest 1,000 gallons.

Payment for water and the cost associated with transportation, distribution, and application is made at the contract unit price. Such payment will constitute full compensation for completion of the work.

Method 3—For water items for which specific unit prices are established in the contract, the volume of water used in accordance with the specifications will be measured to the nearest 1,000 gallons.

Payment for water is made at the contract unit price. Such payment, excluding water cost, will constitute full compensation for completion of the work.

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

• The measurement for payment will include all water used except as noted in Sections 5, 6, and 8 of this specification. Measurement for payment will not include water that is used inappropriately or in excessive to need.

• 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.

LAMB WETLAND HYDROLOGY RESTORATION CONSTRUCTION SPECIFICATION 10–PAGE 3

8. Items of work and construction details

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

a. Subsidiary Item, Water for Construction.

(1) This item consists of furnishing, transporting, measuring, and applying water as necessary for the earthfill, and general pollution control (includes haul road dust control) operations required by the contract.

(2) Water for construction shall be required where minimum compaction requirements for any earthfill operations in this contract that cannot be attained due to dry soil material conditions. Moisture content shall conform to the requirement set forth in Construction Specification 23, Earthfill.

(3) In Section 7, Measurement and Payment, no separate payment will be made for

Water for Construction. Compensation for Water for Construction shall be included in the payment for Bid Item 5, Earthfill, Class C.

LAMB WETLAND HYDROLOGY RESTORATION CONSTRUCTION SPECIFICATION 11 PAGE 1

Construction Specification 11—Removal of Water

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…