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

TABLE 1 . 4
MIDC:ONTINIM RESOURCES, INC
COAL BASIN, P ITICIN COUNTY, C OLORADO , 1
Culvert Design for Haul Roads Project 1097-13 ,
0437-103
ROAD "D" Design of Culvert Installation
10-Yr/24-fir 2.0 Inches 1
Max. Water Available
Culvert Status Old Drainage Drainage Tim 10-Yr/24-1Ir Peak Culvert Depth HW Culvert Notes
Station 1/ No. Arch Structiae of Curve Runoff Discharge Dianx:ter at Inlet Capacity
Member ,System (S Mi Type 2/ Wnciamtrati Nimber (Inches) (cfs) (Inches) (Feet) (cfs)
(1) 2 (4) 5 6 (7 �_ 9 10 11 12 13 14
4-150D E D-1 0.007 C 5 80 1 0•56 1.6 24 3 1 15
Settling,
171-501) I' D-1 0.120 D 5 80 0.56 28.6 - Ponds
31+00D P 0.014 C 5 81 0.60 2.5 1 18 2.5 7.1
31s180D E D-2 0.019 C 5 82 0.64 9.1 36 4 40
42+50D E D-3 0.010 C 5 80 0.56 4.7 24 2.5 11.2 I
461()OD P 0.WI C 5 80 0,56 2.3 18 2.5 7.1
0 58140D E D-2 0.011 D 5 85 0.79 2.8 - l
734 601) P 0.014 C 5 80 0.56 2.3 18 2.5 7.1
84t90D E 1)-4 0.016 C 5 80 0.56 2.6 18 2.5 7.1
9-/V90D E I1'D-3 0.001 D 5 80 0.56 0.2 -
102120D E I -4 0.003 D 5 85 0.79 0.8 _
11200D E D-5 10,019 C 5 85 0,79 9,0 '.4 2.5 11.2
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