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<br />10, U,S, Department of Housing and Urban Development, Federal Insurance
<br />Administration, Flood Insurance Studv Larimer Countv, Colorado, September
<br />1978
<br />
<br />11, Resource Consultants, Inc" Flood-Plain Information Reoort Bia Thomoson River.
<br />Loveland. Colorado, October 1981
<br />
<br />12, Kucera and Associates, Bio Thomoson River Aerial Toooaraohic Maooina,
<br />Scale 1:2,400, Contour Interval 2 feet: Loveland, Colorado, September 1976,
<br />revised February 1981 and May 1981
<br />
<br />13, U,S, Department of the Army, Corps of Engineers, Hydrologic Engineering Center,
<br />HEC-2 Water-Surface Profiles, Generalized Comouter Prooram, Davis, California,
<br />October 1973
<br />
<br />14, Galloway, Romero & Associates, Bio Thomoson River CLOMR Existing
<br />Conditions Tooooraohic Data and Floodolain Maooina, Scale 1:1,200, Contour
<br />Interval 1 foot, October 29, 1996
<br />
<br />15. U,S, Department of the Army, Corps of Engineers, Hydrologic Engineering Center,
<br />HEC-2 Water-Surface Profiles, Generalized Com outer Prooram, Version 4,6.2,
<br />Davis, California, May 1991
<br />
<br />U,S, Water Resources Council, Bulletin No, 17, A Uniform Technioue for
<br />Determinino Flood Flow Freouencies, March 1976
<br />
<br />9,0 REVISION DESCRIPTIONS
<br />
<br />This section has been added to provide information regarding Significant revisions made
<br />since the original Flood Insurance Study was printed, Future revisions may be made that
<br />do not result in the republishing of the Flood Insurance Study report, To assure that any
<br />user is aware of all revisions, it is advisable to contact the community repository of f1ood-
<br />hazard data located at the City of Loveland Building and Development Services, 500 East
<br />Third, Loveland, Colorado 80537,
<br />
<br />9,1 First Revision
<br />
<br />This study was revised on March 23, 1999, to incorporate the results of a Letter of
<br />Map Revision (LOMR) issued on September 8, 1997. The LOMR showed the
<br />effects of more detailed topographic information along the Big Thompson River
<br />from approximately 1,340 feet downstream of West First Street to approximately
<br />710 feet downstream of Wilson Avenue, A topographic map prepared by
<br />Galloway, Romero & Associates (Reference 14), submitted in a Conditional Letter
<br />of Map Revision for Alliance Group Retail Center, dated December 9, 1996 (Case
<br />No, 96-08-363R), was used for this revision, HEC-2 hydraulic computer models
<br />(Reference 15) prepared by Galloway, Romero & Associates, dated March 14,
<br />1997, and October 23, 1996, were used to compute the water-surface elevations
<br />for this revision, There was insufficient mapping and technical data for the gravel
<br />mines, approximately 1,200 feet south of West First Street and directly east of
<br />South Taft Avenue, to complete a detailed hydraulic analysis, Therefore, this area
<br />was designated Zone A. Topographic mapping prepared by Kucera & Associates
<br />(Reference 12) was used along with the Galloway, Romero & Associates maps
<br />(Reference 14) to determine the flood boundary in the Zone A area,
<br />
<br />Table 2, "Floodway Data," and the Flood Profiles were revised to reflect changes
<br />as a result of the LOMR.
<br />
<br />15
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