1991-04-11_GENERAL DOCUMENTS - C1981031

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Mul ches Mulch shall consist of hay or straw mulch , pest-free or weed free to the extent possible. Approximately 30 percent by weight of the mulch material shall be ten inches (10" ) in length or longer. Rotted, caked, decayed or moldy material will not be accepted. EXE CUT ION The CONTRACTOR shall give the PROJECT MANAGER at least two (2) days notice of the time and place of starting his revegetation operations and shall continue to advise as to the schedule of operations. Revegetation may take place at the completion of work at an individual opening if the CONTRACTOR so desires . Fertilizers Immediately prior to seedbed preparation , fertilizer shall be uniformly applied over the areas designated for seeding and immediately incorporated into the soil by tillage methods as discussed below. Commercial fertilizer shall be applied at the rate of 300 pounds per acre . Seedbed Preparation The seedbed shall be firm. Trash , weeds and other debris that will interfere with seeding operations shall be removed or disposed of as approved by the PROJECT MANAGER. On sites where equipment can operate, the seedbed shall be adequately loosened (four to six inches (4" to 6") deep) and smoothed. Chiseling, discing, harrowing or cultipacking may be required. Work shall be done ' on the contour where practicable. On sites where equipment cannot operate, the seedbed shall be hand-raked or otherwise prepared by hand by scarifying to a minimum depth of one inch (1 ") to provide a roughened surface so that seed wi l l stay in place. Seedbed preparation shall be suspended when soil moisture conditions are not suitable for the preparation of a satisfactory seedbed as determined by the PROJECT MANAGER. - Seeding The designated seed mixture type shall be drilled uniformly on the prepared areas. Seeding shall not be done if the ground is frozen. Some areas, such as rock outcrops , etc., within the work limits may not be designated to be seeded. -11-