PERMFILE119934

• Permit No: C1984062
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: TABLES 1 THROUGH 25
• Media Type: D
• Archive: No

•
TABLE Su
Culver[ Schedule
No. (A) Eve nt,yr. Rainfall, in. Area, ac Slope X CN Runoff, in. Peak Flov, tfs Correction Correction Peak Fl osr, cfs DiameCe r, in.
1 25 2.I 22.7 15 75 0.43 7.7 0.96 2.27 17.3 30
2 25 2.1 26.8 16 79 0.58 19.7 1.00 0.51 10.1 24
3 10 1.8 22.1 18 70 0.17 4.6 I.02 0.90 4.2 18
4 10 1.8 25.6 IB 82 O.11 6.0 1.02 I.60 9.8 24
5 10 1.8 15.5 IS 82 O.17 4.8 0.99 0.82 3.9 18
fi 10 1.8 17.7 18 82 0.17 4.4 1.02 1.54 6.9 l8
1 10 1.8 50.0 18 87 0.17 9.9 1.02 0.96 9.7 24
ReEere nce: Soil Con se cvation Service, 1977, Technical Release No. 55, "Procedures fox Determining Peak Fl uv in Colorado"
Footno ce s:
(A) See Map 20, Mine No. 3 Sediment Control Plan
(B) For Type 11 storm, vests rn Colorado, steep slope (I6Y)
(C) From Figure 2, Headuatzr Depth for Corruga [ed Me cal Pipe Culverts with Inlet Control