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Last modified
1/25/2010 6:25:31 PM
Creation date
10/4/2006 11:11:57 PM
Metadata
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Template:
Floodplain Documents
County
Weld
Community
Windsor, Laku Landing
Stream Name
Cache La Poudre River
Basin
South Platte
Title
HEC-2 Study of Laku Landing
Date
2/4/1992
Prepared For
Laku Landing
Prepared By
CWCB
Floodplain - Doc Type
Floodplain Report/Masterplan
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<br />Summary of Results <br /> <br />13 <br /> <br />. <br /> <br />LaIw ~1llIiD& <br />eo...tructi<m~ <br />~l39690JlIl <br /> <br /> "''' <br /> "" <br /> .,'" <br />~ .,~ <br />! <br />. <br /> .,'" <br /> 41'\55 <br /> .~lO <br /> 1.00 <br /> <br /> <br />4769,9' <br /> <br /> <br />1l19.!U <br /> <br />",,,,, <br /> <br />"".., <br /> <br />471:UX) <br /> <br />""'"- <br /> <br />Figure 11. Construction Conditions at Cross Section 139690 <br /> <br />. <br /> <br /> l.aIr.ulAJldins <br /> Con.tmction<:oo<lita. <br /> ~13'17'OOJlIl <br /> m, <br /> .,,, <br /> .,'" <br />! <br />. .", <br />.1 <br />. <br /> .m <br /> .", <br /> .,'" <br /> 1.00 816.92 1"'-" 2448.11 ""'" <br /> ""'"- <br /> <br /> <br />Figure 12. Construction Conditions at Cross Section 139700 <br /> <br />A simulation was then run on the FIS data with the only change being the newly computed <br />roughness of the single cross section intersecting the lake area at Laku Landing. The result of this <br />simulation showed a water surface drop of 0.1 feet at cross section #139690 and #147200, which is <br />two cross sections upstream from Laku Landing. The channel velocity increase at these two cross <br />sections is 0.2 and 0.1 feet per second, respectively. <br /> <br />. <br /> <br />Then, a raised spectator area located approximately halfway on the longitudinal axis between <br />the two lakes was proposed,. This spectator area was simulated with the results showing no change, <br />
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