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FLOOD11552
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Last modified
1/26/2010 10:24:45 AM
Creation date
10/7/2008 4:47:48 PM
Metadata
Fields
Template:
Floodplain Documents
County
Larimer
Community
Larimer County and Incorporated Areas
Basin
South Platte
Title
FIS - Larimer County and Incorporated Areas - Vol 1
Date
6/17/2008
Prepared For
Larimer County
Prepared By
FEMA
Floodplain - Doc Type
Current FEMA Regulatory Floodplain Information
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<br />The revised hydraulic analysis of Spring Creek was performed by Anderson Consulting <br />Engineers, Inc. for the City of Fort Collins (Reference 71). This work was completed in <br />October 2005. The hydrologic analysis was taken from the "Spring Creek Basin Master <br />Drainage Plan - Baseline Hydrology" which was prepared for the City of Fort Collins by <br />Anderson Consulting Engineers, Inc. in May 2003 (Reference 72). <br /> <br />Town of Johnstown <br />There was no previously printed FIS for the Town of Johnstown. For this countywide FIS, <br />the hydrologic and hydraulic analyses for the portion of the Big Thompson River near <br />Johnstown were performed by Anderson Consulting Engineers, Inc. This work was <br />completed in March 2005. <br /> <br />Larimer County (Unincorporated Areas) <br />The hydrologic and hydraulic analyses for the original study for the unincorporated areas <br />of Larimer County were performed by Gingery Associates, Inc., for FEMA, under Contract <br />No. 8-4017. This study was completed in December 1977. <br /> <br />The revised hydrologic and hydraulic analyses for Big Thompson River upstream of Lake <br />Estes, Fall River, and Black Canyon Creek were performed by Simons, Li & Associates, <br />Inc., for FEMA under Contract No. EMW-83-C-1167. This work was completed in April <br />1985. <br /> <br />The hydraulic analysis at Boxe1der Creek downstream of County Road 50 (CR-50) was <br />performed by the U.S. Department of the Interior, Bureau of Reclamation (USBR), the <br />study contractor, for FEMA, under Interagency Agreement No. EHW-88-E-2765, and <br />completed in February 1992. This analysis is now superseded by the 2005 Boxelder <br />Creek/Cooper Slough study prepared by Anderson Consulting Engineers, Inc. <br /> <br />The revised hydrologic and hydraulic analyses for Boxelder Creek/Cooper Slough <br />downstream of County Road 54 were performed by Anderson Consulting Engineers, Inc. <br />for the City of Fort Collins and Larimer County (Reference 75). This work was completed <br />in 2005. <br /> <br />The hydraulic analysis for the Cache La Poudre River, affecting Larimer County <br />downstream of the City of Fort Collins, and Boxelder Creek, from upstream of the <br />confluence with Cooper Slough to just north of the Town of Wellington, was prepared by <br />Simons, Li & Associates, Inc. (SLA), the study contractor, for FEMA, under Contract No. <br />EMW-86-C-2262. This work was completed in August 1990. The hydrologic flood- <br />frequency relationships used in the study were prepared by the USACE, Omaha District <br />(Reference 38). The analyses for Boxelder Creek from upstream of the confluence with <br />Cooper Slough to County Road 54 are now superseded by the 2005 Boxelder <br />Creek/Cooper Slough study. <br /> <br />The hydrologic analyses for the restudy of the Cache La Poudre River from Horsetooth <br />Road to Watson Lake were performed by the USACE, Omaha District (Reference 38), in <br />1993 and 1994. SLA revised the USACE's hydraulic study to depict cross-section <br />stationing for consistency with downstream studies and to replot the water surface profiles <br />in accordance with requirements of FEMA, under Contract No. EMW-86-C2262. This <br /> <br />3 <br />
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