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• Undisturbed (Premine) <br />Soil Type: Predominately C <br />Ground Cover: < 70 %, Good <br />Cover Type: Sagebrush with grass understory <br />CN : 47 <br />Reclaimed (Postrnine) <br />Soil Type: Predominately C <br />Ground Cover: < 70 %, Good <br />Cover Type: Herbaceous <br />CN : 74 <br />Reclaimed Pit 4 <br />Soil Type: Predominately C <br />Ground Cover: < 50 %, Fair <br />• Cover Type: Herbaceous <br />CN : 81 <br />Disturbed <br />Soil Type: Predominately C <br />Ground Cover: < 0 %, Poor <br />Cover Type: Herbaceous <br />CN : 87 <br />Routing Parameters <br />Routing parameters (Muskingum K and Muskingum X) were calculated to <br />express travel time and attenuation in the more complex watersheds. The <br />parameters are used to route hydrographs from a subwatershed outlet to a <br />structure. If the subwatershed is located at the structure, K and X are equal to <br />zero. The methodology outlined in the SEDCAD+ User's Manual is used to <br />• calculate these two routing parameters. The specific equations and values used <br />are detailed as follows: <br />5 <br />