FLOOD05906 - Laserfiche WebLink

Home Browse Search

Federal Emergency Management Agency Washington, D.C. 20472 CERTIFIED MAIL RETURN RECEIPT REQUESTED IN REPLY REFER TO: Case No.: 96-08-198P The Honorable Victor F. Smith Mayor, Town of Erie P.O. Box 100 Erie, Colorado 80516 Community: Town of Erie, Colorado Community No.: 080181 Panel Affected: 0001 D Effective Date of This Revision: MAY 2 4 1996 102-I-A-C Dear Mayor Smith: This is in response to a request for a revision to the effective Flood Insurance Study (FIS) and National Flood Insurance Program (NFIP) map for your community. Specifically, this responds to a letter dated April 4, 1996, from Mr. David P. Krickbaum, P.E., Project Manager, WRC Engineering, Inc., regarding the effective FIS report and Flood Insurance Rate Map (FIRM) for the Town of Erie, Colorado. Mr. Krickbaum requested that the Federal Emergency Management Agency (FEMA) revise the effective FIRM to show the effects of the construction of levees and channelization along Coal Creek from approximately 3,600 feet downstream of the Union Pacific Railroad (UPRR) to approximately 600 feet upstream of the UPRR. All data required to complete our review of this request were submitted with Mr. Krickbaum's April 4 letter. Because this Letter of Map Revision (LOMR) shows the effects of a publicly sponsored flood- control project that reduces flooding to existing development, fees were not assessed for the review. We have completed our review of the submitted data and the flood data shown on the effective FIRM, and have revised the FIRM to modify the elevations, floodplain and floodway boundary delineations, and zone designations of a flood having a I-percent chance of being equaled or exceeded in any given year (base flood) along Coal Creek from approximately 5,700 feet downstream of the UPRR to the UPRR, at the corporate limits of the Town of Erie. As a result of this project, the base flood and flood way are contained within the channel from approximately 2,750 feet downstream of the UPRR to the UPRR. The flooding associated with the West Line Overflow through the Town has been eliminated. The width of the Special Flood Hazard Area (SFHA), the area inundated by the base flood, decreased along the entire revised reach. The maximum decrease in SFHA width, approximately 1,300 feet, occurred approximately 1,000 feet downstream of the UPRR. The base flood elevations (BFEs) decreased along the revised reach. The maximum decrease in BFE, approximately 2.2 feet, occurred approximately 600 feet downstream of the UPRR. The results of an interior drainage analysis show that local runoff from the Town will pond in a low area along Lower Boulder Ditch. That ponded area is bounded to the west by Holbrook Street, to the south by Cheesman Street, and to the east by Kattel Street.