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Last modified
11/23/2009 12:58:04 PM
Creation date
10/4/2006 10:28:21 PM
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Template:
Floodplain Documents
County
Douglas
Community
Castle Rock
Title
Flood Insurance Study - Town of Castle Rock
Date
9/30/1987
Prepared For
Douglas County
Prepared By
FEMA
Contract/PO #
&&
Floodplain - Doc Type
Floodplain Report/Masterplan
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<br /> Table 1. Summary of Discharges <br /> Drainage Area Peak Discharges (cfs) <br /> Floodinq Source and Location (Square Miles) 10-Year 50-Year 100-Year 500-Year <br /> East Plum Creek <br /> At Confluence with Hangmans <br /> Gulch 106.1 5,780 11,910 15,950 26,600 <br /> At Interstate Highway 25 85.6 5,740 11,830 15,840 26,430 <br /> At Upstream Corporate Limits 84.7 5,190 10,600 14 , 120 23,640 <br /> Hangmans Gulch <br /> At Upstream Corporate Limi ts 0.3 170 310 390 600 <br /> Sellers Gulch <br /> At Confluence With Unnamed <br /> Tributary to Sellers Gulch 15.4 1,780 3,250 4,170 6,640 <br /> At Upstream Corporate Limits 13.1 1,740 3,180 4,080 6,450 <br />>-" <br />'" <br /> Unnamed Tributary to Sellers <br /> Gulch <br /> At School Area 1.5 600 1,200 1,570 2,540 <br /> Cherry Creek 1 <br /> At State Highway 86 5,500 12,600 19,080 79,000 <br /> <br />lData Not Available <br />
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