2008-12-11_PERMIT FILE - C1980007A ‎(16)‎

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2008
• Section_Exhibit Name: Exhibit 66 Mine Water Control Plan
• Media Type: D
• Archive: Yes

CJ
•

TABLE 44E
Ditch and Culvert Summary
10-year, 24-hour Storm
Pond I

Diversion
Ditch -Number Discharge

(cfs) Slope

(%) ' Depth

(feet)
Shape Culvert

Number Discharge

(cfs) Size

(inches)
D2-7AA 0.21 5.0 0.17 V*
D2-7C 5.68 5.0 0.59 V*
D2-7CC 6.23 10.0 0.54 V*
D2-71D 0.05 1.0 0.13 V*
D2-7AA 0.21 5.0 0.17 V*
D2-8 5.24 5.0 0.57 V*
D2-8AA 3.43 5.0 0.49 V*
D2-8A 0.30 9.0 0.22 V
D2-8B 0.09 7.0 0.15 V
D2-9 1.19 1.5 0.51 V
D2-9A 2.68 9.0 0.52 V
D2-9B 1.54 10.0 0.39 V
D2-10 0.29 2.0 0.29 V
D2-10A 0.29 27.0 0.19 V**,3

D2R-1+ 26.23 3.2 1.14 V* C2R-1+ 29.99 2-36
D2R-1A+ 3.76 2.2 0.73 V C2R-2 48.01 2-36
D2R-2+ 6.80 46.9 0.49 1' Tra ** C2R-2A+ 6.80 12
D2R-2A+ 8.53 2.0 1.01 V C2R-3+ 15.95 24
D2R-2A Berm+ 0.69 51.0 0.26 V++,z C2R-4+ 13.16 30
D2R-3+ 20.08 8.3 0.87 V* C2R-5 1.02 14
D2R-4+ 2.66 5.1 0.25 2' Tra 2
D2R-4A+ 15.95 11.0 0.75 V*
D2R-4B+ 4.14 5.0 0.65 V
D2R-4C+ 2.13 4.0 0.43 V*
D2R-5 2.52 8.0 0.50 V
D2R-7 1.02 12.0 0.33 V
DCW-2+ 8.84 4.0 0.73 V*
DCW-4+ 0.67 7.7 0.16 1' Trap

Hwy 133 D7-1+ 0.94 7.1 0.28 V* C7-1+ 2.59 30
A
D7-2+ 1.53 7.2 0.34 V* I
Footnotes for Table 44E:
* = Lined with concrete or shotcrete
** = Riprapped with competent rock
*** = Sized for the 25-year, 24-hour storm
= Elliptical concrete pipe
2 = Grass-lined channel
3 = Sideslopes are 3HAV
4 = Sideslopes are 2.5H:1V
Exhibit 66
Appendix A: Output Summary Tables
+ = 100-year design
++ = 2:1 and 4:1 side slopes
# = Lined with asphalt
5 = Pipe arch
6 = Plate arch
= Rolled asphalt curb
Prefix "22 denotes twin pipes, at the same elevation
4 of 4 Revised November 2008, TR115