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Mulching <br />Hay or straw mulch shall be applied uniformly at the rate of two (2) tons per acre over seeded <br />areas. Hydromulch shall be applied at the rate of one and a half (1 1/2) tons per acre. Mulch <br />shall be applied to the designated areas immediately after seeding and not later than 24 hours <br />after seeding has been performed. Mulching shall not be done when the wind velocity exceeds <br />fifteen (15) miles per hour. <br />Stabilizing Mulch <br />On areas larger than one (1) acre a mulch crimper shall be used to stabilize or anchor the mulch <br />into the soil after hay or straw mulch has been spread. The crimper shall be equipped with <br />scrapers to keep the blades clean. Spacing of crimper blades shall not exceed nine inches (9") <br />. On areas less than one acre crimping must be achieved by hand with a suitable tool, such as <br />a spade, on 18" centers. <br />Maintenance <br />The CONTRACTOR shall maintain the areas until all work on the entire contract has been <br />completed and accepted. Maintenance will consist of the repair of area damaged by erosion, <br />wind, fire or other causes. Such areas shall be repaired to reestablish the condition and grade <br />of seedbed and shall be refertilized, reseeded, remulched and/or reestablished as directed by the <br />PROJECT MANAGER. <br />20.4 MEASUREMENT AND PAYMENT <br />If revegetation is not included as a separate bid item, there will be no measurement for <br />payment made for this bid item. The cost for revegetating disturbed areas must be included in <br />the bid for closure of each mine opening/area. The CONTRACTOR must estimate how much <br />area will be disturbed during reclamation activities. The price bid shall include all costs for labor, <br />materials, equipment and all other items necessary for revegetation as described in these <br />specifications. <br />If revegetation is included as a separate bid item, revegetated areas will be measured to the <br />nearest 0.1 acre and paid at the unit price bid for revegetation on the Bid Schedule. The price <br />bid shall include all costs for labor, materials, equipment and all other items necessary for <br />revegetation as described in these specifications. <br />Colorado Division of Minerals 8 Geology GENERAL BID SPECIFICATIONS <br />1996 Page 5 <br />