2017-11-06_PERMIT FILE - C1980007

• Permit No: C1980007
• IBM Index Class Name: Permit File
• Doc Date: 11/6/2017
• Section_Exhibit Name: Exhibit 66 Mine Water Control Plan
• Media Type: D
• Archive: No

Exhibit 66
Appendix A: Output Summary Tables 6 of 6 Revised 10/10- TR122; 08/17- MR422; 10/17- MR426
TABLE 44E
Ditch and Culvert Summary
10-year, 24-hour Storm
Pond / Ditch Discharge
Number (cis)
Slope
(k)
Depth Shape
(feet)
Culvert
Number
Discharge Min. Size Actual
Diversion
(cfe) (inches) inches
Clean DCW-1A
0.21
2
0.08 2'Trap
DCW-1B
0.00
1.5
0.00 V
CCW-1A
3.31 12 48
DCW-4
0.07
7.7
0.04 1 1' Trap
CCW-1 B
3.61 10 54
DCW-5
0.01
1
0.08 V
DCW-6
0.01
1
0.45 V
CCW-2
0.04 2 12
DCW-6A
11.22
15
0.93 V**
CCW-3A
0.00 0
DCW-6B
17.07
2
1.32 V
CCW-313
0.00 0
DCW-6C
3.32
5
0.60 V
CCW-3C
0.00 0
DCW-7
0.19
5
0.21 1 V
CCW-5
0.02 2 1 12
DCW-8
0.01
1
0.08 1 V
CCW-6
0.01 2 1 12
DCW-9+
22.64
40
0.63 3' Tra **
CCW-10+
17.06 18 16
DCW-10+
23.76
40
0.55 4' Tra **
CCW-11+
10.76 15 16
DCW-11+
17.06
35
0.49 4' Tra **
CCW-12+
10.76 15 16
DCW-12+
11.03
25
0.37 4' Tra **
CCW-13+
10.76 15 16
DCW-13+
8.29
36
0.36 3' Trap**
CCW-14+
10.76 15 16
DCW-14+
1.19
40
0.04 1 3' Trap**
CCW-15+
1.19 6 16
DSLY-1 D
0.16
9
0.19 V
DSLY-1 F
0.00
9
0.01 V
DSLY-1 G
0.15
4
0.22 V
DSLY-11
0.05
5
0.15 V
DSLYAJ
0.21
7
0.22 V
DSLY-1 L
0.20
3
1 0.26 V
DSLY-W-1
0.11
3
1 0.20 V
DSLYA P 1
0.17 1
10
1 0.20 V
Footnotes for Table 44E:
* = Lined with concrete or shotcrete
** = Riprapped with competent rock
*** = Sized for the 25-year, 24-hour storm
= Elliptical concrete pipe
z = Grass-lined channel
3 = Sideslopes are 3H:1V
° = Sideslopes are 2.511.1 V
+ = 100-year design
++ = 2:1 and 4:1 side slopes
# = Lined with asphalt
5 = Pipe arch
6 = Plate arch
7 = Rolled asphalt curb
n = Synthetic liner
9= C5E-24A (added wl MR426)
diverts all upstream flows from D5E-31
(19.87 cfs) to C5E-23. C5E-23
includes original designed flows (1.27
cfs) & C5E-24A flows, C5E-24 flow
left as originally designed even though
the bulk of flows are now diverted into
C5E-24A. D5E-31 below C5E-24A (to
C5E-24) will not be concrete-lined.
Exhibit 66
Appendix A: Output Summary Tables 6 of 6 Revised 10/10- TR122; 08/17- MR422; 10/17- MR426