329200 lawns.pdf

F5W61608 USPFO Warehouse Ohio Army National Guard Rev. 0 Defense Supply Center Columbus, Ohio 30 January 2009 Bid Final

LAWNS 329200 - 1

SECTION 329200 - LAWNS

PART 1 - GENERAL

1.1 WORK INCLUDES

A. BASE BID

1. Preparation

2. Fertilizer

3. Seeding

4. Maintenance

5. Restoration of existing lawns

1.2 RELATED WORK

A. Section 312000 Earthwork

1.3 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General & Supplementary Conditions and Division 1 Specifications Sections, apply to this Section.

B. All work, installations, procedures, materials, and testing of the work performed under this Section shall conform to the Construction and Material Specifications adopted January 1, 2008 by the Ohio Department of Transportation (herein referred to as the Standard Specifications), except as modified by this Specification.

1.4 SUMMARY

A. Furnish material, labor, equipment and service required to establish lawns, including all work necessary for seeding operations described herein and on accompanying drawings.

Work includes restoration of lawns damaged by construction, storage, and vehicles.

1.5 SUBMITTALS

A. Submit the dealer’s guaranteed statement of the composition of the mixture and the percentages of purity and germination and submit a copy of the Ohio State Certification for the seed.

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1.6 QUALITY ASSURANCE

A. The A/E will employ a GEOTECHNICAL ENGINEER to observe and test excavations and compacted fill.

B. The A/E will provide staking to establish the grades and elevations indicated on the project grading plan.

C. Contractors Organization

1. CONTRACTOR shall have a competent supervisor onsite during the process of the work who shall act for the CONTRACTOR in all matters concerning the work. He shall have the authority to receive and to act upon directions from the A/E.

PART 2 - PRODUCTS

2.1 MATERIALS AND RATE OF APPLICATION

A. Fertilizer: A starter fertilizer contained in available form by weight of 18% nitrogen, 18% phosphoric acid, and 18% potash, plus trace elements. Fertilizer shall be delivered to the site in original unopened containers which bear the manufacturer’s guaranteed statement of analysis.

1. Rate of application shall be in accordance with the manufacturer’s written recommendation.

2. Apply at rate of one pound/1000 square feet

B. Grass Seed: Mix: 95%/5% Turf-Type Tall Fescue/Bluegrass. Mix to comply with the standards of the Official Seed Analysis of North America for 90% purity and 85% germination, recommended by producer for partial-sun exposure of lawns in the geographic location of project. Mix breakdown:

1. 19% Crossfire 2 Tall Fescue

2. 19% Cayenne Tall Fescue

3. 19% Dynasty Tall Fescue

4. 19% Mustang 3 Tall Fescue

5. 19% Roadrunner Tall Fescue

6. 5 % Bronco Kentucky Bluegrass

Rate of application shall be seven pounds per 1000 square feet

C. Soil: Native Soil mixed with compost.

1. Application rate shall be 5.9 cubic yards of compost per 1000 square feet tilled into the first six inches of native soil. Compost should be 60% organic matter minimum, proven to be non-phylotoxic, screened to ¾” maximum, well-composed, stable, and weed free.

Defense Supply Center Columbus, Ohio 30 January 2009 Bid Final

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D. Mulch: hay or straw, not chopped in short lengths.

1. Application rate shall be 4000 lb./acre.

PART 3 - EXECUTION

3.1 INSPECTION

A. Inspect the site to determine its suitability for seeding and sodding operations.

1. Do not proceed until unsatisfactory conditions have been corrected.

3.2 AREAS TO BE SEEDED

A. All areas disturbed during construction; all earth surfaces within the construction limits;

and, areas outside the construction limits where noted on the drawings.

3.3 JOB CONDITIONS

A. Protection

1. Protect adjacent construction and plants. Replace or repair damaged construction and plants at no expense to the Owner.

2. Protect newly seeded areas by barricades and warning signs.

a. Maintain barricades during the maintenance period.

B. Planting Time

1. Sow lawn seed only during normal planting seasons.

2. Correlate planting with specified maintenance periods after date of Substantial Completion.

C. Coordination

1. Coordinate the schedule of seeding activities with other trades prior to commencing operations.

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3.4 PREPARATION

A. Prepare areas which will be planted immediately before planting.

1. Remove stones over 1 inch in any direction, and sticks, roots, rubbish, and other extraneous material.

2. Grade lawn areas to a smooth, even surface, with loose, uniformly fine texture.

3. Roll and rake, removing ridges and filling depressions.

3.5 APPLICATION OF FERTILIZER

A. Mix lime/fertilizer, at specified rates of application and work into surface.

1. Lime and fertilizer may be applied and incorporated in same operation.

3.6 SEEDING

A. MOISTURE CONTROL

1. If lawn area is dry, water the area to be seeded thoroughly and allow to dry until surface is slightly damp.

B. MECHANICAL SEEDING

1. Sow evenly with an approved mechanical seeder at the rate indicated.

a. Sow one-half the seed in one direction and the other half at right angles to the first seeding.

b. Lightly roll with a cultipacker.

1) In areas inaccessible to cultipacker, lightly rake and roll in two directions with a water ballast roller.

2) Do not rake seed from one spot to another.

2. Do not change the finished grades.

3. If a large mechanical seeder which works the seed into the soil and at the same time rolls the seed bed is used, it is not necessary to roll the seed bed separately.

C. Mulching: After sowing, spread evenly at the rate of 2 tons per acre over newly seeded areas.

1. Apply in a uniform layer, loose enough to allow sunlight to penetrate and air to

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circulate, yet sufficient to shade the soil and reduce erosion.

2. Secure mulch in place by crimping, cultipacking, spraying with asphalt emulsion or any other means satisfactory to the Owner.

3.7 MAINTENANCE FOR GROW-IN

A. Begin maintenance immediately after seeding.

B. Maintenance includes:

1. Protection

2. Watering

3. Rolling

4. Fertilizing

5. Re-seeding

6. Mowing, weeding, and trimming.

C. Repair: During the maintenance period, repair or rework washouts, dry areas, erosion or damage by vandalism.

D. Time

1. Continue maintenance for not less than 60 days, or if not considered acceptable.

3.8 ACCEPTANCE OF LAWNS

A. Upon written request from the CONTRACTOR, at least ten days before the date of inspection, and no earlier than 60 days after completion of seeding, the A/E will perform an inspection of seeded areas.

B. After inspection, the Engineer shall prepare a list of any deficiencies or omissions (punch list).

1. Replant and make repairs itemized on the Punch List.

2. Continue maintenance of that portion of the lawn which has not been accepted by the Owner.

END OF SECTION 329200