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TABLE 13-3. Culvert Specifications (Continued) <br /> Nucla Mine, Montrose County, Colorado <br /> Temporary <br /> or Drainage culvert Culvert Design Existing <br /> Permanent Area Peak Runoff Diameter Length Headwater Headwater Design <br /> Location Installation (Acres) G10 (cfs) (Inches) (Feet) (Feet) (Feet) Method <br /> C-18e Temporary 271 13.60 36 40 1.73 5.0 SEDIMOT <br /> C-19e Permanent 294 14.12 36 151 1.77 17.40 SEDIMOT <br /> C-20e Permanent 77 17.29 26 98 2.54 18.10 SEDIMOT <br /> C-21e Temporary 24 10.50 24 40 1.89 5.0 SEDIMOT <br /> C-22e Permanent 8 3.28 24 60 0.9 4.6 SEDCAD <br /> w <br /> C-23e Permanent 7 2.91 14 50 1.1 3.3 SEDCAD+ <br /> C-101p Temporary 174 33.95 36 80 3.20 4.7 SEDIMOT <br /> C-102p Permanent 210 59.11 36 60 5.7 7.0 SEDIMOT <br /> C-103p Permanent 179 62.62 36 60 6.0 7.0 SEDIMOT <br /> C-104p Temporary 25 9.27 18 60 2.4 5.0 SEDIMOT <br /> V <br /> 2 1An "e" suffix indicates existing culvert; a "p" suffix indicates proposed culvert. <br /> 0 <br /> cn <br /> N <br /> 2 <br /> 110 American Iron and Steel Institute, "Handbook of Steel Drainage and Highway Construction Products", <br /> 1980 (Minimum Thickness = 16 gage). Minimum cover 12 inches. <br />