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<br />02480 - 11/12 <br />3.11 SOD STORAGE: The CONTRACTOR shall store sod to protect is from damage and <br />drying and in accordance with the following. <br />A. Store materials only in areas of site designated by the ENGINEER. <br />B. If sod is not laid within two days of delivery, spread out flat with grass side up in cool <br />place and keep moist. Rolled or stacked sod that becomes yellow shall be removed <br />from the site and replaced by the CONTRACTOR at its own cost. <br />3.12 GRASSING INSTALLATION: The CONTRACTOR shall follow the following guidelines in <br />preparing the seed/sod bed and in placing seed and sod. <br />A. Preparation of Subgrade: After rough grading is completed and before topsoil is <br />spread, apply superphosphate, and thoroughly scarify ground to a minimum depth of <br />eight inches with a toothed ripping machine by running in two directions at right <br />angles over the entire surface area to be planted. <br />B. Fertilizing: <br />1. Apply commercial fertilizer at the rate of 15 pounds per 1,000 square feet <br />distributing uniformly with a mechanical spreader. <br />C. Finish Grading: <br />1. Thoroughly mix the applied materials to a depth of six inches by running a <br />rototiller over the entire area in two directions at right angles. <br />2. Rake the top soiled area to a uniform grade so that all areas drain, as indicated <br />on the grading plan. <br />3. Remove all trash and stones exceeding two inches in diameter from area to a <br />depth of two inches prior to preparation and planting. <br />D. Seeding: <br />1. Time of Seeding: Conduct seeding under favorable weather conditions during <br />seeding seasons which are normal for such work as determined by accepted <br />practice in locality of project. <br />2. Mechanical Seeding: Sow grassed areas evenly with a mechanical spreader <br />at rate of 100 pounds per acre, roll with cultipacker to cover seed, and water <br />with fine spray. Method of seeding may be varied at discretion of <br />CONTRACTOR on his own responsibility to establish a smooth, uniformly <br />grassed area. <br />3. Temporary Seed: Apply temporary seed at a rate of 30 pounds per acre to all <br />areas where permanent seed is placed. <br />4. Mulching and Protection: Mulch all seeded areas by spreading a uniform light <br />cover of straw mulch over the seeded area at a rate of 2-1/2 tons per acre not <br />later than 2 days after seeding has been performed. <br />E. Sodding: <br />1. Before sod is laid, correct soft spots and grade the area smooth and remove <br />sticks, rocks and debris greater than three quarters inch in diameter. Lay so <br />that no voids occur and tamp or roll, brush or rake screened topsoil with no <br />lumps or stones larger than three quarters inch over sodded area, water sod <br />thoroughly. Complete sod surface true to finished grade, even and firm. <br />Fasten sod on slopes steeper than 1:2 by wooden pins 6 inches long driven <br />through sod into soil, until flush with top of sod. Install at sufficient intervals to <br />hold sod in place when saturated.