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FLOOD03051
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FLOOD03051
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Last modified
1/25/2010 6:26:11 PM
Creation date
10/4/2006 11:25:52 PM
Metadata
Fields
Template:
Floodplain Documents
Designation Number
308
County
Weld
Community
Unincorporated Weld County
Basin
South Platte
Title
CWCB Review Report - FIS - Weld County Unincorporated Areas and Eaton
Date
9/1/1990
Designation Date
1/1/1991
Floodplain - Doc Type
Educational/Technical/Reference Information
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<br />. <br /> <br />e <br /> <br />e <br /> <br />6. <br /> <br />Diversion Characters: <br /> <br />7. Previous Studies: <br /> <br />does affect hydrology <br />does not affect hydrology <br />should not use stream data records <br />f rom to <br /> <br />.; existing information <br />"'~S~t'tl 'F~()(>I> t1AZAI>O A"-'ALV5G~, Co6\<. "t<.tROC"C <br />o;I'~ ~/ 1 e BWD-fR- --l ~~l..D C('\o"-s"'r/f2s <br />'''''C~ tl' tlel..f... Ln.'" i"'i'O""A7'~.~ 1"y>o ".0-.111>.<. I\Q' F PM <br />""....r. 1"''']::\11.\ l'=-fiR... cntll. ~~ A'"l- 8:R(~ <br />title <br /> <br />-""7 <br /> <br />new conditions <br />new methodologies <br />compari son prov ided <br />compatible with previous flows <br />significantly different statistically <br />confidence limits <br />90% confidence interval <br />50% confidence interval <br /> <br />FINDING: <br /> <br />The hydrologic analysis v' meets does not meet the mlnlmum <br />standards of ~_ Rule 5.B-:-.(detailed) or _.".__ Rule 6.B. (approx.) <br /> <br />C. <br /> <br />Hydraulic Analysis <br /> <br />1. <br /> <br />Wllb.r' Surface <br />Profiles included: <br /> <br />2. Floodplain <br />Boundaries: <br /> <br />3. <br /> <br />Methodology: <br /> <br />4. <br /> <br />Delineation <br />Procedures: <br /> <br />J <br />-.-- <br />II <br />.) <br />-.--:;- <br /> <br />a. <br /> <br />b. <br /> <br />-,8-. <br /> <br />lo-year <br />50-y~lar <br />10o-year <br />500-year (optional) <br />frequency-elevation <br /> <br />table <br /> <br />J lOO-year <br />J 500-year (optional) <br /> <br />J <br />J <br /> <br />step backwater method <br />HEC-2 <br />other <br />alternative method <br />publi shed manual <br />assumed depth method <br />depth stated on maps <br />geomorphic features method <br />history flood method <br />rating curve method <br /> <br />J <br /> <br />flood contour method etc. <br />map contour method etc. <br />
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