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Last modified
1/25/2010 7:10:05 PM
Creation date
10/5/2006 2:32:43 AM
Metadata
Fields
Template:
Floodplain Documents
Designation Number
177
County
Jefferson
Community
Unincorporated Jefferson County
Stream Name
Weaver Creek
Basin
South Platte
Title
Flood Hazard Area Delineation - Weaver Creek
Date
5/1/1981
Designation Date
9/1/1981
Floodplain - Doc Type
Floodplain Report/Masterplan
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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />-15- <br />Table 3 <br /> <br />SUMMARY OF <br />RAINFALL LOSSES <br /> <br />Sub- <br />Basin <br /> <br />Infiltra- <br />tion 1 <br />(in/hr) <br /> <br />Rainfall <br />Pervious <br />Retention <br />(in) <br /> <br />Abstractions <br />Impervious <br />Retention <br />(in) <br /> <br />Impervious <br />Loss <br />% <br /> <br />1 <br />2 <br />3 <br />4 <br />5 <br />6 <br />7 <br />8 <br />9 <br /> <br />.5 <br />.5 <br />.5 <br />.5 <br />.5 <br />.5 <br />.5 <br />.5 <br />.5 <br /> <br />.4 <br />.4 <br />. 3 <br />.3 <br />.3 <br />.3 <br />.3 <br />.3 <br />.3 <br /> <br />.1 <br />.1 <br />.05 <br />.05 <br />.05 <br />.05 <br />.05 <br />.05 <br />.05 <br /> <br />5. <br />5. <br />5. <br />5. <br />5. <br />5. <br />5. <br />5. <br />5. <br /> <br />Notes: 1. Assumed Constant <br /> <br /> Table 4 <br /> SUMMARY OF PEAK DISCHARGES <br /> AND FLOOD VOLUMES <br />Design Peak Discharges (cfs) Flood Volumes (AF) <br />Point QI0 Q50 QI00 10 yr. 50 yr. 100 yr. <br />A 112 170 182 13.9 20.9 23.3 <br />B 220 332 353 27.1 40.2 46.0 <br />C 370 538 603 63.2 81.6 93.7 <br />D 733 1020 1153 105.5 139.6 160.4 <br />E 1329 1812 2080 215.3 288.4 328.8 <br />F 1819 2472 2809 310.5 417.6 475.2 <br />G 1875 2547 2895 327.3 439.9 500.5 <br /> <br />~ Leonard Rice Consulting Water Engineers. Inc. <br />
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