Amendment3Cspec06_Jodi_Barker_WRP_04292015.pdf

(210-VI-NEH, May 2001) (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.

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. Non-asphaltic 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-

(210-VI-NEH, May 2001) (6-2) 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.

(210-VI-NEH, May 2001) (6-3)

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.

NRCS - Tennessee (6-4) Jodi Barker WRP

Wetland Reserve Program April 27, 2015

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 10, Field 2: Protective Cover, Vegetation & Mulching

(1) This item consists of seedbed preparation, and application of fertilizer, seed, and mulch to establish permanent vegetation on all disturbed areas in Field 2 of the Jodi

Barker WRP Easement. The areas to receive protective cover include, earthfill slopes not covered by structures, excavated slopes, and all other disturbed areas.

This item is not intended to cover vegetation establishment in the bottom of the shallow excavation borrow areas. NRCS is providing 210 pounds of Cave-In-

Rock Switchgrass, Panicum virgatum seed to the contractor to be used on the

Jodi Barker WRP site. Contractor is responsible for obtaining the required

Switchgrass seed that exceeds the 210 pounds of seed that NRCS is going to provide.

(2) 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 unless application is made with a hydraulic seeding machine, in which case, application may occur after seedbed preparation.

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

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

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

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

(a) From April 15 through August 1, all disturbed areas (except the bottom of borrow areas) shall be seeded with:

Twenty (20) lbs. Japanese Millet, Echinochloa esculenta

Ten (10) lbs. Cave-In-Rock Switchgrass, Panicum virgatum

(b) From August 1 through November 30, all disturbed areas (except the bottom of borrow areas) shall be seeded with:

Fifty (50) lbs. Winter Wheat, Five (5) lbs. Brown Top Millet, Two (2) lbs. Ladino Clover

(6) In Section 5, Seeding, Sprigging, Fertilizing, Mulching, and Stabilizing, immediately

NRCS - Tennessee (6-5) Jodi Barker WRP after broadcasting seed, the seed shall be partially covered by cultipacker, drag, or other methods approved by the Engineer. The seed covering operation shall 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.

(7) Mulch shall be small grain straw uniformly applied to the seeded areas at a rate of one and one-half (1½) tons per acre. Mulch may be spread by hand or with a mulch-spreading machine. Mechanical mulch stabilization (such as a mulch crimper), the use of a tackifier, or dozer tracks up and down the slope is required.

(8) In Section 6, Measurement and Payment, Method 1 will apply.

b. Bid Item 11, Field 2: Seeding and Mulching, Erosion Control Blanket double-netted erosion control blanket mulch to establish permanent vegetation on disturbed slope areas within Field 2 of the Jodi Barker WRP Easement. The areas to receive protective cover shall include areas as shown on the drawings or otherwise staked in the field by the COR or his/her representative. The specific erosion control blanket and pins to be used on the site must be approved by the Contracting Officer in writing prior to installation. . NRCS is providing 210 pounds of Cave-In-Rock

Switchgrass, Panicum virgatum seed to the contractor to be used on the Jodi

Barker WRP site. Contractor is responsible for obtaining the required 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

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

NRCS - Tennessee (6-6) Jodi Barker WRP other methods approved by the Engineer. The seed covering operation will not be

On sloped areas too steep or confined for normal farm equipment operation, the entire area shall be tracked with equipment operating up and down the earthen 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. If too steep for tracking by equipment, the Contractor shall choose to treat the entire area with a hydraulic seeding machine or by hand.

(7) The erosion control blanket shall have a required functional longevity of greater than

6 months to less than 12 months.

(8) The matrix filler for the erosion control blanket shall be 100 percent straw fiber at a rate of not less than 0.50 lbs./sq. yd.

(9) The netting for the erosion control blanket shall be light weight photodegradable polypropylene net with a mesh size no larger than 0.50 inches x 0.50 inches.

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

Roll installation shall proceed from downstream to upstream. Begin at the top of the slope by anchoring the blanket in a 6” deep by 6” wide trench with approximately 12” of blanket extended beyond the up-slope portion of the trench.

Backfill and compact the trench only after pinning blanket in the trench. Apply the seed to the prepared seed bed and fold remaining blanket back over filled trench.

Secure the blanket with a row of pins spaced a maximum 20” apart across the width of the blanket. Next roll the blanket down the slope securing the blanket by placing pins in appropriate locations as recommended by the manufacturer, but at a density of not less than a 1.7 staples per sq. yd for slopes 2:1 (H:V) or flatter. For slopes that are 1:1 (H:V) or steeper, pin density shall be 3.4 per/sq. yd. 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 minimum 0.20 inches, with a 1.5 inch diameter minimum washer at the top.

(11) In Section 6, Measurement and Payment, the following will apply: For items of work for which specific unit prices are established in the contract, the area treated will be measured with the slope and the area calculated to the nearest square yard

NRCS - Tennessee (6-7) Jodi Barker WRP

(S.Y.). Payment for treatment will be made at the contract unit price for the designated treatment, which will constitute full compensation for completion of the work.

c. Bid Item 14, Field 4: Protective Cover, Vegetation & Mulching mulch to establish permanent vegetation on all disturbed areas in Field 4 of the Jodi

Barker WRP Easement. The areas to receive protective cover include, earthfill slopes not covered by structures, excavated slopes, and all other disturbed areas.

This item is not intended to cover vegetation establishment in the bottom of the shallow excavation borrow areas. NRCS is providing 210 pounds of Cave-In-

Rock Switchgrass, Panicum virgatum seed to the contractor to be used on the

Jodi Barker WRP site. Contractor is responsible for obtaining the required 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

NRCS - Tennessee (6-8) Jodi Barker WRP other methods approved by the Engineer. The seed covering operation shall not be spreading machine. Mechanical mulch stabilization (such as a mulch crimper), the

d. Bid Item 21, Field 6: Protective Cover, Vegetation & Mulching mulch to establish permanent vegetation on all disturbed areas in Field 6 of the Jodi

Barker WRP Easement. The areas to receive protective cover include, earthfill slopes not covered by structures, excavated slopes, and all other disturbed areas.

This item is not intended to cover vegetation establishment in the bottom of the shallow excavation borrow areas. NRCS is providing 210 pounds of Cave-In-

Rock Switchgrass, Panicum virgatum seed to the contractor to be used on the

Jodi Barker WRP site. Contractor is responsible for obtaining the required 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

NRCS - Tennessee (6-9) Jodi Barker WRP other methods approved by the Engineer. The seed covering operation shall not be spreading machine. Mechanical mulch stabilization (such as a mulch crimper), the

e. Bid Item 22, Field 6: Seeding and Mulching, Erosion Control Blanket double-netted erosion control blanket mulch to establish permanent vegetation on disturbed slope areas within Field 6 of the Jodi Barker WRP Easement. The areas to receive protective cover shall include areas as shown on the drawings or otherwise staked in the field by the COR or his/her representative. The specific erosion control blanket and pins to be used on the site must be approved by the Contracting Officer in writing prior to installation. NRCS is providing 210 pounds of Cave-In-Rock

Switchgrass, Panicum virgatum seed to the contractor to be used on the Jodi

Barker WRP site. Contractor is responsible for obtaining the required 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

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

NRCS - Tennessee (6-10) Jodi Barker WRP other methods approved by the Engineer. The seed covering operation will not be

On sloped areas too steep or confined for normal farm equipment operation, the entire area shall be tracked with equipment operating up and down the earthen 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. If too steep for tracking by equipment, the Contractor shall choose to treat the entire area with a hydraulic seeding machine or by hand.

(7) The erosion control blanket shall have a required functional longevity of greater than

6 months to less than 12 months.

(8) The matrix filler for the erosion control blanket shall be 100 percent straw fiber at a rate of not less than 0.50 lbs./sq. yd.

(9) The netting for the erosion control blanket shall be light weight photodegradable polypropylene net with a mesh size no larger than 0.50 inches x 0.50 inches.

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

Roll installation shall proceed from downstream to upstream. Begin at the top of the slope by anchoring the blanket in a 6” deep by 6” wide trench with approximately 12” of blanket extended beyond the up-slope portion of the trench.

Backfill and compact the trench only after pinning blanket in the trench. Apply the seed to the prepared seed bed and fold remaining blanket back over filled trench.

Secure the blanket with a row of pins spaced a maximum 20” apart across the width of the blanket. Next roll the blanket down the slope securing the blanket by placing pins in appropriate locations as recommended by the manufacturer, but at a

NRCS - Tennessee (6-11) Jodi Barker WRP density of not less than a 1.7 staples per sq. yd for slopes 2:1 (H:V) or flatter. For slopes that are 1:1 (H:V) or steeper, pin density shall be 3.4 per/sq. yd. 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 minimum 0.20 inches, with a 1.5 inch diameter minimum washer at the top.

(11) In Section 6, Measurement and Payment, the following will apply: For items of work for which specific unit prices are established in the contract, the area treated will be measured with the slope and the area calculated to the nearest square yard

(S.Y.). Payment for treatment will be made at the contract unit price for the designated treatment, which will constitute full compensation for completion of the work.

f. Bid Item 26, Field 8: Protective Cover, Vegetation & Mulching mulch to establish permanent vegetation on all disturbed areas in Field 8 of the Jodi

Barker WRP Easement. The areas to receive protective cover include, earthfill slopes not covered by structures, excavated slopes, and all other disturbed areas.

This item is not intended to cover vegetation establishment in the bottom of the shallow excavation borrow areas. NRCS is providing 210 pounds of Cave-In-Rock

Switchgrass, Panicum virgatum seed to the contractor to be used on the Jodi

Barker WRP site. Contractor is responsible for obtaining the required 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

NRCS - Tennessee (6-12) Jodi Barker WRP other methods approved by the Engineer. The seed covering operation shall not be spreading machine. Mechanical mulch stabilization (such as a mulch crimper), the

g. Bid Item 28, Fields 10, 14-16: Protective Cover, Vegetation, and Mulching

(1) This item consists of smoothing for seedbed preparation and the application of fertilizer, seed, and mulch to establish permanent vegetation on the areas delineated on the drawing Sheet #2 and #3 for Fields 10 and 14-16. The areas to receive treatment include existing dikes and auxiliary spillways constructed in 2014. NRCS is providing 210 pounds of Cave-In-Rock Switchgrass, Panicum virgatum seed to the contractor to be used on the Jodi Barker WRP site. Contractor is responsible for obtaining the required Switchgrass seed that exceeds the 210 pounds of seed that NRCS is going to provide.

(2) All trash and woody debris larger than 1-inch (1”) in diameter shall be removed prior to any grading/smoothing operations.

(3) Smoothing of all irregularities shall be conducted on the existing dike structures in

Field 10 and Field 14-16 and on the existing auxiliary spillway in Field 10. The repairs for the northern most dike in Field 10 shall be staked in the field by the COR or his/her representative and shall be repaired as shown on the drawings and as specified in Construction Specification 23, Earthfill. If soil material is needed to establish the desired grades, the locations for borrow material shall be excavated at the location shown on the drawings and as specified in Construction Specification

21, Excavation or as staked in the field by the COR.

(4) Fertilizer shall be applied uniformly at the rate of one thousand (1,000) pounds of 6-or loss of plant food values. Caked or hardened fertilizer shall be replaced or

NRCS - Tennessee (6-13) Jodi Barker WRP pulverized to its original condition before being used. Fertilizer shall be applied

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

(6) Inoculants shall be required on all legumes and shall conform to the material

(7) In Section 3, Seeding Mixtures, Sod, Sprigs and Dates of Planting, The following per

(c) From April 15 through August 1, all disturbed areas (except the bottom

(d) From August 1 through November 30, all disturbed areas (except

(8) In Section 5, Seeding, Sprigging, Fertilizing, Mulching, and Stabilizing, immediately other methods approved by the Engineer. The seed covering operation shall not be

(9) Mulch shall be small grain straw uniformly applied to the seeded areas at a rate of spreading machine. Mechanical mulch stabilization (such as a mulch crimper), the

(10) In Section 6, Measurement and Payment, Method 1 will apply.

h. Bid Item 29, Fields 14-16: Temporary Seeding

(1) This item consists of disking, smoothing, seedbed preparation, and application of fertilizer to establish temporary vegetation on the areas delineated on the drawing

Sheet #2 for Fields 14-16. The areas to receive treatment are areas left rough during

2014 construction.

(2) Surface water shall be removed prior to smoothing and seeding operations. See

Construction Specification 11. Any costs incurred for dewatering these areas shall

NRCS - Tennessee (6-14) Jodi Barker WRP be included in Bid Item 3, Removal of Water.

(3) All trash and woody debris larger than 1-inch (1”) in diameter shall be removed prior to any grading/smoothing operations.

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

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

(6) In Section 3, Seeding Mixtures, Sod, Sprigs and Dates of Planting, The following per

Five (40) lbs. Brown Top Millet

(7) In Section 5, Seeding, Sprigging, Fertilizing, Mulching, and Stabilizing, immediately other methods approved by the Engineer. The seed covering operation shall not be

(8) Mulching is NOT required for this item.

(9) In Section 6, Measurement and Payment, Method 1 will apply.

NRCS - Tennessee (6-15) Jodi Barker WRP

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