2017-07-24_PERMIT FILE - C1996083A ‎(5)‎

• Permit No: C1996083A
• IBM Index Class Name: Permit File
• Doc Date: 7/24/2017
• Doc Name: Pages EXH 8-1 to EXH 8-97
• Section_Exhibit Name: Volume III Exhibit 08 Protection of The Hydrologic Balance
• Media Type: D
• Archive: Yes

TR -102 EXH. 8-29i 06/15
V-Ditch Design
Ditch Grade
Minimum Grade Maximum Grade RipRap
Peak
Min
Max
Depth Velocity
Depth
Velocity D50 Inch
Flo
C12
7.0%
12.0%
0.84 6.5
0.76
8.0
9
6.84
C13
7.0%
11.0%
0.39 3.9
0.36
4.6
0.86
** C14
5.0%
50% Trapezoidal Channel C-Gulct
38.32
C15
7.0%
11.0%1
0.38 3.8
0.35
4.6
0.75
C16
2.0%
5.0%
1.98 6.2
1.66
8.7
9
36.30
C17
7.0%
11.0%
0.46 4.4
0.42
5.1
1.33
*** C18
33%
33%
0.68 12.3
0.68
12.3
9
8.50
C19
25%
25%
0.21 4.9
0.21
4.9
0.29
C-20
7.0%
11.0%
0.40 4.0
0.37
4.7
0.93
C-21
7.0%
11.0%
0.34 3.6
0.311
4.2
0.59
C-22
7.0%
11.0%
0.91 6.9
0.84
8.2
9
8.87
C-23
7.0%
11.0%
0.94 7.0
0.87
8.4
9
9.88
C-24
40.0%
40.0%
0.61 12.6
0.61
15.5
21
6.84
C-25
10.0%1
20.0%
0.181 2.8
0.16
3.5
0.16
C-26
7%
7%
0.681 5.7
0.68
5.7
10.31
** Riprap
lined trapezoidal channel in C-Gulch - See pages 8-17 - 8-1
*** Line with unnite, concrete or other material to pre
vent infiltration.
Ditch D1
Trapezoidal Channel - See page 8-11
D2
2%
10%1
1.48 5.1
0.84
7.8
12
9.7
D3
20%
50%
0.10 8.5
0.30
4.2
6
0.60
D4
2%
10%
0.44 2.3
0.33
4.2
0.78
D5
2%
2%
0.38 2.6
0.38
2.58
0.74
D6
2%
2%
0.36 2.4
0.36
2.39
0.47
Ditch E1
2%
2%
0.64 2.9
0.64
2.9
1.79
G1
Renamed Ditch D-4
G2
I Deleted from Design
Ditch SAE1
Deleted from Design
SAE2
Deleted from Desi
n
Ditch FG1
30%
30%
0.21 5.4
0.21
5.4
1
0.33
Ditch GVB1
28%
28%
0.16 4.3
0.16
4.3
0.16
GVB2
17%
17%
0.15 3.21
0.15
3.2
0.11
GVB3
10%
10%
0.17 2.7
0.171
2.7
0.11
GVB4
47%
47%
0.20 6.5
0.201
6.5
6
0.35
GVB5
35%
35%1
0.18 5.2
0.18
5.2
0.25
GVB6
15%
15%1
0.20 3.7
0.20
3.7
0.20
GVB7
10%
2%1
0.30 3.9
0.43
2.2
0.60
Berm along coal stockpile pad - flow in ditches B 30, 31, 32
Height Velocity
Height Velocity
1 %
2%
1.00 2.8
0.87
3.61
4.00
Berms Freeman Gulch
2%
4%
0.34 1.9
0.30
2.51
0.33
Provide riprap, gunnite or concrete lined V-Ditch as
necessary
for erosion protection.
Ditches cut in rock will not require erosion protection.
Flow depth in feet does not include 0.3 feet freeboard
TR -102 EXH. 8-29i 06/15