PERMFILE61482

• Permit No: C1996083A
• IBM Index Class Name: Permit File
• Doc Date: 8/22/2003
• Doc Name: page 8-1 to 8-80i
• Section_Exhibit Name: Exhibit 08 Protection of the Hydrologic Balance
• Media Type: D
• Archive: Yes

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V-Ditch Design
Ditch Grade Minimum Grade Maximum Grade Ri Ra Pea
Min Max De th Veloci De th Veloci Dso Inch Flo
C10 15.0% 15.0% 0.41 5.9 0.41 5.9 1.46
C11 7.0% 11.0% 0.66 5.6 0.61 ;'.iffis, 12 3.6
C12 7.0% 12.0% 0 84 . .. '6:5 0.76 `i3i€? 9 6.84
C13 7.0% 11.0% 0.39 3.9 0.36 4.6 0.86
" C14 5.0% 50% Tra ezoidal Channel C-Gulch 37.37
C15 7.0% 11.0% 0.38 3.8 0.35 4.6 0.75
C16 2.0% 5.0% 1.98 6.2 1.66 ::6:::':=giT 9 35.35
C17 7.0% 11.0% 0.46 4.4 0.42 5.1 1.33
«"' C18 33% 33% 0 68 1:2:3 0.68 12:3 9 8.25
"' 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 0.31 4.2 0.59
C-22 7.0% 11.0% 0.91 6.9 0.84 _8~2. 9 8.37
C-23 7.0% 11.0% 0.94 7.0 0.87 iii:' i$4' 9 9.13
C-24 40.0% 40.0% 0.61 :12:6! 0.61 1515 21 6.8
" Ri ra lined tra ezoidal channel in C-Gulch -See a es 8-17 - 8-19
"' Line with unnite, concrete or other material to revent infiltration.

Ditch D1 Tra ezoidal Channel -See a e 8-11
D2 2% 10% 1.48 5.1 1.09 it8i31 9 16.41
E1 2% 2% 0.65 2.9 0.65 2.9 1.79
F1 2% 2% 0.46 2.3 0.46 2.3 0.70
F2 2% 2% 1.30 4.7 1.30 4.7 11.66
F3 2% 2% 191 fi0! 1.91 fif} 6 32.67
G1 2% 2% 0.47 2.4 0.47 2.4 0.75
G2 2% 2% 0.22 1.4 0.22 1.4 0.10
Ditch SAE1 Deleted from Desi n
SAE2 Deleted from Desi n
Ditch FG1 30% 30% 0.21 5.4 0.21 5.4 0.33
Ditch GV81 28% 28% 0.16 4.3 0.16 4.3 0.16
GV82 17% 17% 0.15 3.2 0.15 3.2 0.11
GVB3 10% 10% 0.17 2.7 0.17 2.7 0.11
GV64 47% 47% 0.20 .....:::6:5 0.20 i65 6 0.35
GVB5 35% 35% 0.18 5.2 0.18 5.2 0.25
GV66 15% 15% 0.20 3.7 0.20 3.7 0.20
Berm alon coal stock ile ad - flow in ditches B 30, 31, 32
Hei th Veloci Hei th Veloci
1 % 2% 1.00 2.8 0.87 3.6 4.00
Berms Freeman Gulch
2% 4% 0.34 1.9 0.30 2.5 0.33
Provide ri ra unnite or concrete lined V-Ditch as
necessa for erosion rotection.
Ditches cut in rock will not re uire erosion rotection.
Flow de th in feet does not include 0.3 feet freeboard.
TR-027 EXH-8 - 29i - a/os
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