GENERAL31411 - Laserfiche WebLink

Home Browse Search

pushed to the west to the edge of the previously reclaimed borrow area and to the north east. Please see map 2A and 2B for clarification. The Division estimates that less than 4,000 cY of material must be pushed. The material shall be placed as to blend in with the existing topography, and at the direction of the PROJECT MANAGER. The slope of the graded azea shall be no steeper than 5:1. The grade shall be sloped to the south in a uniform manner. No channels or depressions shall remain for possible concentration of surface runoff. Any remaining material shall be pushed to the east to blend in with We existing topography at a slope no steeper than 5:1. Coal material located over the edge of the natural slope shall be scraped up using an excavator or backhce. Vegetation in this area consists of brush, and should not be damaged. The entire 3 acre azea shall be final graded to blend in with the existing topography. CMP #5 depicted on Exhibit 2A shall be removed and disposed of off-site in accordance with all state and federal laws. C. Comy~ction All coal and non coal waste from the Hawk's Nest Mine shall be placed per the specifications mentioned above. The material shall be place in a maximum 2 foot horizontal lifts and compacted by making 4 to 6 series of staggered passes over the entire surface of each lift with rubber-tired equipment, sheepsfoot roller(s), or other appropriate compaction equipment. Track mounted equipment, such as bulldozers or hydraulic excavators, is not considered appropriate for use in compaction work. D. Redistribution of Topsoil Topsoil will be placed on the regraded surfaces of the coal waste and fill material. There is one topsoil pile at the northeast end of the Silo Facility Area, depicted on Exhibit 2A. A railroad crossing e~dsts on the east side of the topsoil pile. This aossing must be used to access the pile with rubber-tire vehicles. Any damage to the railroad tracks as a result of this project is the responsibility of We CONTRACTOR. The tracks are used by the West Elk Mine to load coal on average twice a day. There shall be no obstruction to the tracks while the trains are loading coal. Coal loading times are not guaranteed. The topsoil shall be spread over We length of the regraded azea, approximately 3 acres to a 6" depth. Any topsoil that is left after a six inch (6") depth shall be placed to a depth of up to twelve inches (12") on the steepest areas of the regraded facility. Hay bales or silt fences shall be placed on the downhill side of the footprint of the topsoil pile on the North Fork side of the pile. The topsoil footprint shall be seeded in accordance wiW line item 5 of the bid document. E. Workine Area Limi The edges of all regrading areas at the working azea boundary and along all established shrub/tree stands and undisturbed areas shall be graded or tapered to create a smooth (plus or minus 6 inches) transition between the final regraded surface and undisturbed surfaces or surfaces outside the working area boundary. Care shall be taken during regrading activities to prevent damage to established vegetation. Earthwork and regrading activities of any nature shall remain at all times