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FLOOD01607
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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 />- <br /> <br />**************************************** <br />.. ~I .. <br /> <br />':>'i- <br />.. <br />.~ <br /> <br />toCS CUi":VE !'IUI-IBEli METHOD <br />FLOOD HYDROGRAPH EVALUATION <br /> <br />.. <br />'.. <br />*, <br /> <br />***~.************************************ <br /> <br />WATERSHED: <br />FLOOD EVENT: <br /> <br />EUREKA GULCH AI NEVADA GULCH CONFLUENCE <br />10-YEARI 6 -HOUR STORM <br /> <br />- <br /> <br />CLIENT: <br />PROJ ECT NUt''lBEf~: <br /> <br />CENTRAL CITY <br />B7020-0::) <br /> <br />- <br /> <br />DATE: <br />USER: <br /> <br />01-21-1SiElEl <br />,JSF <br /> <br />- <br /> <br />WATERSHED CHARACIERISICS <br />****************.~******* <br /> <br />- <br /> <br />WATERSHED ARE?) <br />AVERAGE SLOPE <br /> <br />1,185.00 {'lCRES <br />21 . 40 PERCE:NT <br /> <br />- <br /> <br />NUMBER OF SUBDRAINAGES: <br />EFFECTIVE CURVE NUMBER <br /> <br />1 <br />80. ~;5 <br /> <br />- <br /> <br />RUNQFF CHARAC~ERISTICS <br />- ********************** <br /> <br />~. <br /> <br />TOTAL STORM FHECIPITATION <br />HYDROGRAPH TIME INCREMENT <br /> <br />1.8:5 INCHES <br />0..25 HOUPS <br /> <br />. <br /> <br />PEAf:: FLOW <br />TIME TO PEAK FLOW <br />RUNOFF VOLUME <br /> <br />7::96. ::;2 CFS <br />:3. 50 HOURS <br />48.06 ACRE--FEET <br /> <br />.. <br /> <br />TOTAL STORM RUNOFF <br />RUNOFF COEFFICIENT <br /> <br />O. 49 I NCHEE, <br />0.26 <br /> <br />j <br />
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