PERMFILE71881

• Permit No: C1981038A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: Surface Drainage - CULVERT CAPACITIES
• Media Type: D
• Archive: Yes

CYPRUS ORCHARD VALLEY COAL CORPORATION
CULVERT DESIGN SUMMARY:
• 10-YEAR REQUIRED 100-YEAR REQUIRED
CULVERT PEAKFLOW CULVERT PEAKFLOW CULVERT
CULVERT
-------- PAGE
------- J/B/S
---------- DIAMETER
----------- (cfs)
--------- DIAMETER
--------------- (cfs)
----
-- DIAMETER
----------
WEST RIDGE WAST E PILE DRA INAGE AREA (REFER TO MAP N0. 8-lA): --
A C3 321 18" 0.95 6" 1.84 8"
B C7 321 24" 0.95 6" 1.84 8"
N C11 411 30" 15.42 24" 30.39 30"
EE C15 421 18" 1.66 9" 3.32 15"
0(1/2) C19 421 30" 1.66 13" 3.32 15"
N1(2%)_ `_C21 __ _ _511 36" 8.80 15_-_-_- 17.35 _ .24~__
Q C25 512 48" 19.11- - -24" 37.66 30"-
EAST RIDGE WAST E PILE DRA INAGE AREA (REFER TO MAP N0. 8-lA):
C C29 111,121 30" 3.01 12" 5.45 15"
C(1/2) C33 111,121 48" 3.01 14" 5.45 16"
• R C35 311 36" 6.32 15" 12.03 21"
POND 1 DRAINAGE AREA (REFER TO MAP N0. 8-lA);
M C39 211 30" 2.55 9" 5.23 15"
CULVERT "0" DRA INAGE AREA (REFER TO MAP N0. 8-lA):
K C43 111 24" 0.50 6" 0.97 6"
0 C45 112 36" 2.09 8" 4.54 12"
CULVERT "L" AND "L "' DRAINAGE AREAS (REFER TO MAP N0. 8-lA):
L AND L' C49 111,111 24" 4.23 12" N/A N/A
CULVERT "D" DRAINAGE AREA (REFER TO MAP N0. 8-lA):
D C51 111 18" 0.16 4" N/A N/A
CULVERT "D "' DRAINAGE AREA (REFER TO MAP N0. 8-lA):
D' C53 111 18" 1.03 8" N/A N/A
CULVERT "E" DRAINAGE AREA (REFER TO MAP N0. 8-lA):
• E C55 111 24" 38
1 8" N N

--------
--------
---------
----------- .
----------
--------------- /A
------- /A
----------
C-~