1998-08-28_GENERAL DOCUMENTS - C1981017 (2)

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PROJECT WORK DESCRIPTION PROJECT OVERVIEW The goal of this project is to accomplish revegetation of various cut and fill slopes adjacent- pie haul roads and mine benches located in the central and northern portions of Cr-al Basin. The slopes below Mines 1, 2, 3 and the Mine 5 fan, collectively referred to as the mine bench outslopes, will be scarified and revegetated. In addition to the mine bench out -es, cut and fill slopes adjacent to Roads D, E, F, G and D-A will also be scarified and reveget In order to accomplish the revegetation goals, the cut and fill slopes subject to ti its Project will first be scarified by hand, then fertilized and seeded. A wet hay mulch will be applied to a4ord protection to tF seed. Organic materials may be incorporated into the slopes prior to initiating tP scahficatir process. Because many of the roads or mine bf'-Iches adjacent to the project areas have been previously reclaimed, access io Mines 1, 2, 3, _ie Mine 5 fan and Roads E, F, G and D-A must be kept to a minimum. The CONTRACTOR will be responsible for repairing all damages to previously recta°-ned areas. Accc ss to Road D to within one half (1/2) mile of Mines 1 and 2 is available via improved dirt road. Tree and shrub planting will occur in some locations. Most of the work will involve end labor on long, steep slopes. Safety of Laborer, Contractors, Public and the PROJECT Mr,NAGER is of paramount concern. Map 4, Project Area, depicts the roads and mine bench outslopes to be affected by this project. Mine Bench Outslopes are defined 4 ; the fill slopes which exist below the mine and fan entries referred to in this document. These slopes vary from 600 feet to 900 feet in slope length. In most cases, the slopes approach the angle of repose, and are heavily rilled and gullied. The fills are generally shallow near the top a I increase in thickness near the base. are generally composed of fine grained shales, sandstone and coal particles, intermixed v rger cobble to boulder sized piece: ^f coal, sandstones and trommel reject material. In soy stances, mine debris is intersperse.:. within the fill. Sandstone outcrops have been observe_ ., protr Je from the fills in some locations. Road Cut SIoar are defined as the s. -sely vegetated slopes located on the uphill side of the roads describe ; this docum it. In r..any instances, these slopes are composed of decomposing snales and san- )nes which form a steep talus-like slope. Exposures of slightly metamorphosed sandstone ari" shale exist in some locations Road Fill Slopes are defined as the sparsely vegetated slopes located on the down slope side of the roads described in this document. In many instances, these slopes are composed of decomposing shales f sandstones wFIch form a steep slope. The fill material, in many areas, exhibits a more soil-lit iature than the ut slopes. These slopes are generally less steep than the Road Cut Slopes, but are typically longer. Exposures of slightly metar.;orphosed sandstone and shale exist in some locations. Volumes distances and areas stated in this dccument are estimations onlx. The CONTRACTORS are responsible for verifying all estimations pr r to bid submittal. 6