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B . Preparation of Area to be Seeded : The ground over which the seed is to <br /> be sown shall be prepared by disk-harrowing and thoroughly pulverizing <br /> the soil to a suitable depth . The prepared soil shall be loose and <br /> reasonably smooth . It shall be reasonable free of large clods , roots , and <br /> other material which will interfere with the work or subsequent mowing <br /> and maintenance operations . <br /> C . Application of Seed : While the soil is still loose , the seed shall be <br /> scattered uniformly over the grassing area and immediately mixed into <br /> the seed bed to a depth of one-half inch . Unless other types of seed are <br /> called for, permanent-type grass seed shall be a mixture of 20 parts of <br /> Bermuda seed and 80 parts of Pensacola Bahia seed . Quick-growing <br /> type grass seed shall be a species which will provide an early ground <br /> cover during the particular season when planting is done and will not later <br /> compete with permanent grass. The separate types of seed used shall <br /> be thoroughly dry-mixed immediately before sowing . Seed which has <br /> become wet shall not be used . <br /> D . Mulching : When mulching is called for, approximately two inches , loose <br /> thickness, of the mulch material shall then be applied uniformly over the <br /> seeded area , and the mulch material cut into the soil with the equipment <br /> specified , so as to produce a loose mulched thickness of three to four <br /> inches. Care shall be exercised that the materials are not cut too deeply <br /> into the soil . No artificial watering of the mulch shall be done before it is <br /> applied . <br /> E . Rolling : Immediately after completion of the seeding , the entire grassed <br /> or mulched area shall be rolled thoroughly with the equipment specified . <br /> At least two trips over the entire area will be required . <br /> F . Watering : Newly seeded areas are not to be watered to force the seed <br /> germination , but only to sustain grass growth . Water will only be used on <br /> vegetated areas when permitted by the Engineer. <br /> G . Operations on Steep Slopes : On steep slopes when mulching is called <br /> for, the mulch material may be anchored down in lieu of being cut into the <br /> soil by use of a machine . Anchoring may be done by either of the <br /> following methods: <br /> 1 . Placing a layer of soil , approximately two inches thick by nine <br /> inches wide , along the upper limits of the mulch , and spotting soil <br /> piles over the rest of the area at a maximum spacing of four feet. <br /> 2 . Spreading a string net over the mulch , using stakes driven flush <br /> with the top of the mulch , at six-foot centers, and stringing parallel <br /> and perpendicular, with diagonals in both directions. <br /> H . Maintenance : The Contractor shall , at his expense , maintain the planted <br /> areas in a satisfactory condition until final acceptance of the project. <br /> Such maintenance shall include the filling , leveling , and repairing of any <br /> washed or eroded areas, as may be necessary . The Engineer, at any <br /> 02485 Grassing.doc <br /> 02485 - 4 <br /> K%05-126 IRC 741h Ave Force Main - ARCHNEIBidding Gontract SpeaficationsW2465 Grassing.doc <br />