2010-10-07_PERMIT FILE - C1982057A

• Permit No: C1982057A
• IBM Index Class Name: Permit File
• Doc Date: 10/7/2010
• Doc Name: Postmine Drainage Channel Design
• Section_Exhibit Name: Tab 20 Attachment 20-1
• Media Type: D
• Archive: Yes

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AP WHERE REQUIRED
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TYPICAL POSTMINE CHANNEL LINED Wl TH l/EGETA TION OR ROCK RIPRAP

Flow
Slope Bottom Side
Velocity Flow
~ Design
<
Liner
Channel
(cfs)
(%) Width Slope
(fps) Depth Depth VeglD~S
(ft) H:1V (ft) (ft)
005-Gulch 6-11 6.3 0.7 1.0 6-inches
LL-K 144 12 20 3.0 6.5 0.6 0.9 9-inches
005-Gulch 2-5 V-Ditch 3.3 1.0 1.3 Veg.
MM-LL 6 7 6-22 2.0 3 0 5.9 0.5 0.8 6-inches
005-E1 2-5 V-Ditch 3.5 1.0 1.3 Veg.
NN-LL 7 7 6-20 2.0 3 0 6.0 0.5 0.8 6-inches
005-W7 1.0 0.3-25 V-Ditch 3.0 3.0 1.6 1.9 Veg
006-NE1 1-10 3.0 3.8 1.4 1.7 Veg.
BB-JJ 63 11-20 5.0 30 4.6 0.3 0.6 6-inches
006-NE1 3-10 V-Ditch 3.3 1.2 1.5 Veg.
~~-PP 3.2 11-16 5.0 3.0 4.7 0.1 0.4 Gravel
006-N E4 3-10 V-Ditch 2.0 0.9 1.2 Veg.
PP-00 1 0 11-20 2.0 3 0 4.4 0.1 0.4 Gravel
006-NE1 5-10 V-Ditch 2.1 0.8 1.1 Veg.
PP-II 1 1 11-25 2.0 3 0 4.9 0.1 0.4 Gravel
006-Gulch 25
1 3-8 5
0 3.0 6.1 0.8 1.1
BB-EE . . 6-inches
006-S1 3-10 V-Ditch 3.1 1.2 1.5 Veg.
EE-FF 2'9 1-17 4.0 3.0 5.0 0.2 0.5 Gravel
1-5 4.8 1.8 2.1 Veg.
006-Gulch 22 9 6-11 5.0 3.0 6.5 0.6 0.9 6-inches
EE-C 12-15 6.6 0.5 0.6 9-inches
006-N E2 4
6 14-40 5.0 3.0 5.1 0.3 0.5
C-RR . 6-inches
006-N E3 5-10 V-Ditch 3.5 1.1 1.4 Veg.
RR-W 3.7 11-14 5.0 3.0 4.8 0.2 0.5 Gravel
006-NE3 5-10 V-Ditch 2.7 1.0 1.3 Veg.
W-OO 2~0 11-23 4.0 30 4.8 0.1 0.4 Gravel
1-5 4.5 1.7 2.0 Veg.
006-Gulch 19.4 6-14 5.0 3.0 6.5 0.6 0.9 6-inches
C-D 15-20 6.5 0.5 0.8 9-inches
006-E1 1-5 V-Ditch 4.0 2.0 2.3 Veg.
D-SS 10 7 6-16 2.0 3 0 6.4 0.6 0.9 6-inches
006-E1 1-7 V-Ditch 3.8 1.8 2.1 Veg.
SS-HH 6 5 8-27 2.0 3 0 6.2 0.4 0.7 6-inches
006-E2 3-10 V-Ditch 2.9 1.1 1.4 Veg.
SS-TT 2.3 11-40 8.0 3.0 4.7 0.1 0.4 Gravel
006-Gulch 1-7 V-Ditch 4.7 2.1 2.4 Veg.
D-E 114 8-15 2.0 30 6.4 0.6 0.9 6-inches
006-S1 1-10 V-Ditch 3.4 1.6 1.9 Veg.
E-XX 3 6 11-16 2.0 3 0 4.5 0.3 0.6 6-inches
006-Gulch 2-6 V-Ditch 3.7 1.6 1.9 Veg.
E-GG 7'5 7-18 2.0 3.0 5.8 0.5 0.8 6-inches
;Notes: 1) MIMn1Um now or l.U crs used ut oes~yna
2) Velocityvalue estimated from mawmum slope (Stability Malys is)
_. ...~_
_ 3) Flow depth estimated from minimum slope (CapaatyMalysis)
4) Design flow includes 0.3 feet of freeboard
;. _.. -_ _
5) Riprap Dsos¢ed by PADER Method design diameter plus 3-inches
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"~`°~"° n~ "~'~`"`~'~ `° SUMMARY FOR I I W
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TR-59 20-1-1 Revised 08/07