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FLOOD01787
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FLOOD01787
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Last modified
11/23/2009 12:58:08 PM
Creation date
10/4/2006 10:21:40 PM
Metadata
Fields
Template:
Floodplain Documents
County
Boulder
Stream Name
South Boulder Creek
Title
South Boulder Creek/ Flatirons
Date
12/5/1997
Prepared For
Boulder
Prepared By
Consultants
Floodplain - Doc Type
Community File
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<br />II <br />I . Refine analysis of storages, spillage, channel IH] <br /> conveyance at 55th and Foothills, Crossover <br />I Ditch along Baseline from Foothills to 55th, <br /> carrying capacity and spills from Baseline, storm <br />I sewers across Baseline to ditch, and determine <br /> approximate disposition of flows leaving basin <br /> along Foothills Parkway. Spillage to seven [M] <br />I potential paths at intersection of Foothills and <br /> Baseline needs refined modeling, probably 2-D <br />I . Refine capacity and characteristics of [M] <br /> conveyances along 55th from Baseline to <br /> Wellman, and <br />I possibly to Arapahoe. [L] <br /> . Provide backwater and flow split model of [H] <br />I Wellman Ditch from South Boulder Creek to and <br /> including Bear Creek diversion/spill controls. <br />I . Review and refine any available previous 1M] <br /> analysis of drainage network north of Wellman, <br />I particularly in areas of West Valley Overflow, <br /> South Boulder Creek spills, and [M] <br /> model east side tributary storage and diversions IL] <br />I to Valmont. <br /> E. HvdroloQv Modeling and Analvsis <br />I . Incorporate area adjustments, including portions [H] <br /> of the Bear Peak Basin, Upper Marshall, the <br />I direct tributary along east side upstream of 36, <br /> and west basins in urban area that may split <br /> flow between Bear Creek and South Boulder <br />I Creek basins. <br /> . Model rainfall storms for entire area below [H] <br />I Gross and for local event using UDFCD and <br /> NOAH methodologies as agreed. <br />I . Incorporate available Bear Creek model to allow [H] <br /> simulations from and to Bear Creek. <br />I <br />'I V-5 <br />I <br />
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