GENERAL34701 - Laserfiche WebLink

Home Browse Search

C. Seedbed Preparation A firm, smoothed seedbed shall be prepared. 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 loosened at least 4-6" deep with a chisel plow or disk. Work shall be done on the contour. 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 will 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. D. Seeding The CONTRACTOR shall be required to supply the seed. The seed mixture designated below shall be sown uniformly on the prepared seedbed. Seeding shall not be done if the ground is frozen. Some areas, such as rock outcrops, shrub or tree clumps, etc., within the work limits are not designated to be seeded. These areas are identified in Exhibits 3A and 38. Drill Seeding In all areas where practicable, seeding shall be performed with a grassland drill with depth bands and seedbox agitator and equipped with either packing wheels or a cultipacker. The drill shall be capable of properly handling the seed being planted on all slopes designated for this method. Seed shall be drilled on the contour. The distance between drilled furrows shall not be more than twelve (12) inches. Seed shall be planted one-quarter inch (1/4") to one-half inch (1/2") deep. Broadcast Seeding Broadcast seeding may be used at the CONTRACTOR's option, where drill seeding is not practicable due to excessive slope grade or excessively rocky soil. Regardless of the method used, broadcast seed shall be covered approximately one-quarter (1/4) to one-half (1/2) inch deep by flexible-tine harrowing or a similar method acceptable to the PROJECT MANAGER. If seed is broadcast, either a pneumatic seeder, a hydraulic seeder, or a hand or machine operated seeder capable of uniform application of prescribed quantities shall be used. Hydroseeding, if employed, shall be done prior to hydromulching, in a separate operation. The following seed mixture shall be used. Seeding rates listed are for drill seeding and shall be doubled for broadcast seeding. -6-