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Last modified
11/23/2009 12:58:13 PM
Creation date
10/4/2006 10:08:52 PM
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Floodplain Documents
County
Gilpin
Community
Central City
Stream Name
Eureka and Nevada Gulches
Title
Master Drainage Study
Date
2/12/1988
Prepared For
Central City
Prepared By
HydroDynamics
Floodplain - Doc Type
Floodplain Report/Masterplan
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<br />. <br /> <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 />~ <br /> <br />A <br /> <br />p,7 <br /> <br />*****************.~********************** <br /> <br />,., <br /> <br />* <br /> <br />* SCS CURVE NUMBER METHOD * <br />* FLOOD HYDROGRAPH EVALUATION * <br />.' HD:r * <br />*,~****~.*********~.*********************** <br /> <br />WATERSHED: <br />FLOOD EVENT: <br /> <br />NEVADA GULCH AT EUREKA GULCH CONFLUENCE <br />10-YEAR! 6 -HDUR STORM <br /> <br />CLIENT: <br />PROJECT NUMBER: <br /> <br />CEhITF(~)[_ C 1 ''I' \' <br />El70:~.:O-(J~~; <br /> <br />DATE: <br />USEr~: <br /> <br />01-";;:: 1--1 '?8[~ <br />.JE)F <br /> <br />WIHERSHED CH{\R~iCTER I SICS <br />***************~.**~.***** <br /> <br />WATERSHED ARU) <br />AVERAGE SLOPE <br /> <br />704.00 ACF:ES <br />2:3. 40 PERCENT <br /> <br />NUMBER OF SUBDRAINAGES: <br />EFFECTIVE CURVE NUMBER <br /> <br />1 <br />80.33 <br /> <br />RUNPFF CHARACTERISTICS <br />********************** <br /> <br />TOTAL STORM PRECIPITATION <br />HYDROGRAPH T IlvlE I NCRElvlENT <br /> <br />1.85 INCHES <br />0.25 HOLlRS <br /> <br />PEAK FLOW <br />TIME TO PEAK FLOW <br />RUNOFF VOLUME <br /> <br />17"7. :,0;6 CFS <br />3.25 HOURS <br />28. ~;o ACRE-FEET <br /> <br />TOTAL STORM RUNOFF <br />RUNOFF COEFFICIENT <br /> <br />0.4'7 INCHES <br />0.26 <br />
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