Seed and Mulch natick cg.doc

SECTION 02825

SEEDING AND MULCHING

PART 1 - GENERAL

1.1 summary

A. This work shall consist of preparing seedbeds and furnishing and placing required seed, mulch, and blanket material.

1.2 MEASUREMENT

A. Area computations will be upon surface measurements.

1.3 PAYMENT

A. Seeding is incidental to Composite Road Construction.

B. The accepted quantities for Erosion Control Blanket and Erosion Control Blanker over Mulch will be paid for at the contract unit price for each pay item as shown in the BID SCHEDULE.

PART 2 – PRODUCTS

1.4 REQUIREMENTS

A. Materials shall meet the requirements of the following:

1. Seed:

a. The kinds of grass, legume, and cover crop seed furnished shall be those stipulated in Subsection 3.3. Seed shall meet the requirements of Federal Specification JJJ-S-181.

b. Seed shall be furnished separately or in mixture in standard containers with (1) seed name; (2) lot number; (3) net weight; (4) percentages of purity and of germination (in case of legumes, percentage of germination to include hard seed); and (5) percentage of maximum weed seed content clearly marked for each kind of seed. The contractor shall furnish the Contracting Officer (CO). Duplicate signed copies of a statement by the vendor, certifying that each lot of seed has been tested by a recognized laboratory for seed testing within 6 months of date of delivery. This statement shall include (1) name and address of laboratory, (2) date of test, (3) lot number for each kind of seed, and (4) results of tests as to name, percentages of purity and of germination, and percentage of weed content for each kind of seed furnished, and, in case of a mixture, the proportions of each kind of seed. Legume seed shall be inoculated with approved cultures in accordance with the instructions of the manufacturer.

Seed: The following seed mix and application rate shall be used:

Species

Timothy –

13 lbs. per acre

Smooth Brome – 13 lbs per acre

Orchard Grass - 13 lbs per acre

Alsike Clover -

4 lbs per acre

2. Mulch:

a. Straw: Straw for mulching shall be from grain crops that are free from noxious weeds, mold, or other objectionable material. Straw mulch shall be in an air-dry condition and suitable for placing with mulch blower equipment or by hand.

b. Hay: Grass hay shall be of approved herbaceous mowing, free of noxious weeds, mold, or other objectionable material. Grass hay shall be in an air-dry condition and suitable for placing with mulch blower equipment or by hand.

3. Erosion Control Blanket Material:

a. All erosion control materials shall be made of new material, clean, sound, free of rips or tears, and furnished in lengths of at least 200 feet.

See the Erosion Control Technology Council website (ECTC.org) for commercially available products that may conform to these specifications. (h) Type 2.D, short-term double-net erosion control blankets. Furnish an erosion control blanket composed of processed natural or polymer fibers mechanically bound between two natural fiber or synthetic nettings to form a continuous matrix with a 12-month typical functional longevity with shear stresses up to 1.75 pounds per square foot.

PART 3 – EXECUTION

1.5 SOIL PREPARATION

A. The areas to be seeded shall be finished as required by other applicable Sections to the lines and grades SHOWN ON THE DRAWINGS. Areas that are damaged by erosion or other causes shall be restored. The surface soil shall be in a roughened condition favorable for germination and growth.

1.6 APPLICATION METHODS FOR SEED

spec writer: fill in method below.

A. Material shall be placed by the Dry Method.

1. Dry Method: Mechanical seeders, seed drills, landscape seeders, cultipacker seeders, fertilizer spreaders, hand-operated seeders or other approved mechanical seeding equipment shall be used to apply the seed in the amounts and mixtures specified.

1.7 APPLICATION OF MULCH

spec writer: fill in method below.

A. Mulch shall be placed by the Dry Method.

1. Dry Method: Mulch shall be applied after seeding is completed. The mulch shall be applied uniformly at a rate that will provide a minimum of 90% ground coverage.

2. Immediately after applying mulch, cover with erosion control blanket and fasten in place with wire staples recommended by the blanket manufacturer for the use intended. Staples shall be applies a minimum of 12” on center each way.

B. Installation of Netting & Erosion control Blankets:

spec writer: fill in blank below.

1. Erosion control blankets shall be installed as SHOWN ON THE DRAWINGS and in accordance with the manufacturer's recommendations.

C. Care During Construction:

1. The contractor shall be responsible for protecting and caring for seeded areas until final acceptance of the work. The contractor shall repair all damage to seeded areas caused by his construction operations without additional compensation.

END OF SECTION 02825

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SEEDING AND MULCHING