1987-12-01_PERMIT FILE - C1981017 ‎(111)‎

• Permit No: C1981017
• IBM Index Class Name: PERMIT FILE
• Doc Date: 12/1/1987
• Doc Name: Morrison Knudsen Haul Road Drainage Control Plan
• Section_Exhibit Name: Chapter II Attachment 2 to Appendix II-B-7
• Media Type: D
• Archive: No

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TABLE 1 . 1
MIDCONTINL•Vr RESOURCES, INC
COAL BASIN, PI1'KM COUNTY, COLORADO
Project I097-13
Culvert Design for haul Roads 0437-103
Design of Culvert Installation
ROAD "A" - - -^ - 10--Yr/24-Iir = 2.0 Inches
_ Max. Water Available
Culvert Status O]d Drainage -Drainage Time 10-Yr/24-Hr Peal, Culvert Depth lU Culvert Notes
Station I/ No. Area Structure of Curve Runoff Discharge Diameter at Inlet Capacity
Systcm (Sq. Mi-.) IVne 2/ nccnit:raLici Number (Inches) (cfs) (Inches) (Peet) (cfs)
- 1 2 3 4 (5)- 6 (7) (8) (9 10 11 (12) - (13) (1-4)
0100 A E A-1 9.94 C 45 63 0.08 31-0 144 13 1130
i 12-+90 A P. RD-1 0.09 D 5 80 0.56 14.7 - -
154-30 A E A-2 0.007 C 5 80 0.56 1.1 24 3 13.0 I
201-20 A E A-3 0.013 C 5 85 0.79 3.3 32 3.5 22.0
23-f9O A E A-4 0.01.2 C 5 85 0.79 3.1 24 3 13.0
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3F,t 60 A E A--S 0.020 C 5 85 0.79 5.1 24 3 13.0
44+90 A E A-6 0.010 C 5 85 0.79 2.6 24 3 13.0
50F70 A E A-7 0.006 C 5 85 0.79 1.5 18 2.5 1.1 '
564-30 A E A-8 0.004 C 5 85 0.79 1.0 24 3 13.0
61-180 A E A-9 1.47 C 20 65 0.09 83.0 120 11 740
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1/ P - Proposed 2/ C - Culvert Culvert that receive drainage from additional areas up strecmn
E - Existing D - Ditch at Curves I