2008-08-11_PERMIT FILE - C1992080 ‎(3)‎

• Permit No: C1992080
• IBM Index Class Name: Permit File
• Doc Date: 8/11/2008
• Section_Exhibit Name: APPENDIX 5-2 SEDIMENT POND CONTROL DESIGN
• Media Type: D
• Archive: No

~ l~
S SEDIMENT CONTROL DESIGN
CARBON JUNCTION MINE
OARRIDGE ENERGY, INC.
NAME OF STRUCTURE: Diversion Ditch No. 2.
TYPE OF STRUCTURE: Diversion Ditch
LOCATION: North above fill.
STORM TYPE: l0yr. 2~hr. Event.
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BASIC DATA
1.
2.
3.
4.
5.
6.
7.
8.
9.
• 10.
PRECIPITATION EVENT:
WEIGHTED SOILS COMPLEX N0:
LENGTH:
AREA:
SLOPE:
HYDRAULIC LENGTH:
RUNOFF:
TIME CONCENTRATION, HOUR
PEAK DISCHARGE PER UNIT:
TOTAL PEAK DISCHARGE:
2.25 inches.
87
650 ft.
0.03 acres
0.02
65o ft.
1.10 in.
.07hr.
1000
33.0 Cfs.
STRUCTURE DESIGN
1. LENGTH: 650 ft.
2. WIDTH: n/a
3. HEIGTH: 1/3 slope
4. FLOW DEPTH AT PEAK DISCHARGE: 1.51 ft.
5. SAFETY FACTOR, BOTTOM: n/a
6. SAFETY FACTOR, SIDES: n/a
7. WALL SLOPE: 33$
8. VELOCITY: 4.82 ft./sec.
9. D/50: h/a
10. VOLUME: n/a
11. DIAMETER: n/a
12. TIME OF DETENTION: n/a
DESIGN: DITCH 2.5 FEET DEEP, 1V:3H SLOPE SIDES.
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