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<br />SEDIMENT CONTROL DESIGN <br />CARBON JUNCTION MINE <br />OARRIDGE ENERGY, INC. <br />• <br />NAME OF BTRUCTURE: Permanent Channel Realignment <br />TYPE OF BTRUCTURE: Permanent construction of <br />mining. <br />LOCATION: Through the middle of the pits for <br />Canyon after mining has been completed. <br />BTORM TYPE: 100 yr. 24 hr. event. <br />BABIC DATA <br />1. PRECIPITATION EVENT: <br />2. WEIGHTED SOILS COMPLEX NO: <br />3. LENGTH: <br />4. AREA: <br />5. SLOPE: <br />6. HYDRAULIC LENGTH: <br />7. RUNOFF: <br />8. TIME CONCENTRATION, HOUR <br />9. PEAK DISCHARGE PER UNIT: <br />10. TOTAL PEAK DISCHARGE: <br />STRUCTURE DESIGN <br />drainage after <br />Carbon Junction <br />3.75 in. <br />80 <br />9500 ft. <br />0.35 sgmi. <br />4.6$ <br />2800 ft. <br />1.84 in. <br />0.55 hr. <br />46o cfs/in/sgmi. <br />293 cfs <br />1. LENGTH: 2800 ft. <br />2. WIDTH: 20 ft. <br />3. HEIGHT: 2.0 ft. <br />4. FLOW DEPTH AT PEAK DISCHARGE: 1.42 ft. <br />5. SAFETY FACTOR, BOTTOM: 1.42 <br />6. SAFETY FACTOR, SIDES: 1.63 <br />7. WALL SLOPE: 1V:4H <br />8. VELOCITY: 10.3 cfs. <br />9. D/50: 2.0 ft <br /> <br />