PERMFILE73094

• Permit No: C1982057A
• IBM Index Class Name: Permit File
• Doc Date: 8/20/2004
• Section_Exhibit Name: Tab 13 Attachment 13-10 Part 3
• Media Type: D
• Archive: Yes

Summery of Watershed Parameters, Peak Flou, and
Design Statistics for Culverts in Haul Road G,
Seneca II-W Mine, Routt County, Colorado.
4ATERSHED PARAMETER
Selected
Peak Discharge Culvert Culvert HW
Area Lengthl) Relief 10-Yr., 24-H r. Length Diameter Required
Culvert (AC) (Mi) (Ft) CN (CFS) (Ft.) (In.~ (Ft)i~
xRC-G1 9510.9 2.12 630 70 174.1 150 72 5.9
XRC-G2 784.1 1.51 854 78 94.8 130 60 4.4
HRC-G3 463.16 0.60 573 54 26.24 250 60 4.5
XRC-GS 225.00 0.94 710 86 40.4 140 36 3.6
1)
LUlverts routed through upstream structure(s).