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- 17 - <br />~J <br />SITE GRADING <br />Both cut and fill are anticipated to provide the final finish <br /> <br />they are to be revegetated or If continual maintenance is not desired. <br />Access should also be provided at the tbe~of the slope for periodic <br />- cleanup. <br />In clay overburden Bolls, permanent slopes on the order of 1}:1 <br />(horizontal to vertical) should remain stable assuming adequate drainage <br />end protection Is provided to minimize erosion. Temporary construction <br />slopes in clay soils as wall as underlying bedrock can be constructed <br />steeper. However, they should be braced and/or left standing on steeper. <br />slopes no longer than necessary and careful observation should be made <br />to detect loosening of blocks or slope movement. <br /> <br />• <br />grades. Relatively deep cuts into bedrock are required at the truck <br />dump and the stockpile reclaim structure, and shallow cuts In overburden <br />soils are required for the stockpile and train loadout areas. Fill <br />areas are anticipated to be relatively minor. <br />Cuts: The cut slope stability for the depths proposed should not ba a <br />serious problem. In claystone bedrock, the cut slope stability will be <br />affected by the bedding irregularities and Jointing system. These rock <br />discont(nultles will create a potential for sliding of blocks along the <br />Joint faces. Bedrock is poorly cemented and 'will slake and weather to <br />slopes an the order of 1:1. Permanent cuts Into the bedrock should be <br />no steeper than l:l (horizontal to vertical) and preferably flatter If <br /> <br /> <br />~- ;~,.i... -. ~ ~ ,;~ <br />