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RECEIVED Federal Emergency Management Ag(\Jltq;~ 9 1998 Washington, D.C. 20472 OCT 07 1998 Colorado Water Conservation Board LETTER OF MAP AMENDMENT 218-70-RS-NS IN REPLY REFER TO CASE NO."'9l!iOlV396A' _, ._n. -, 'fl Follows Case No. 98"08-348A Community: City and County of Denver, Colorado Community No.: 080046 Map Panel Affected: 0013 C Map Effective Date: September 28, 1990 We reviewed a request dated July 22, 1998, for a Letter of Map Amendment. All required information for this request was received on September 10, 1998. Using the information submitted and the effective National Flood Insurance Program (NFlP) map, we determined portions of the property described below are in a Special Flood Hazard Area (SFHA), the area that would be inundated by the flood having a I-percent chance of being equaled or exceeded in any given year (base flood); however, Buildings 3 through 6 are not in the SFHA. Also, we determined Buildings 1 and 2, as shown on the effective NFlP map, remain in the SFHA designated Zone AE. Property Description: Valley Park Apartments, a portion of Section 6, Township 4 South, Range 60 West, Sixth Principal Meridian, as described in the Warranty Deeds recorded as Reception Nos. 9400153093 and 9400163092, in the Office of the Recorder, Denver County, Colorado Street Address: 675 Wolff Street Flooding Source: Lakewood Gulch This letter amends the above-referenced NFIP map to remove Buildings 3 through 6 from the SFHA. These structures are now in Zone X (shaded), an area of moderate flooding outside the SFHA. Flood insurance coverage for the structure may be available under a low-cost policy (see enclosed document). Because portions of the property remain in the SFHA, any future construction or substantial improvement on the property remains subject to Federal, State, and local regulations for floodplain management. The enclosed document provides additional information about Letters of Map Amendment. A portion of this property is located within the regulatory floodway for Lakewood Gulch. The regulatory floodway is the area that must be maintained in an unobstructed condition in order to prevent unacceptable increases in flood levels. In accordance with Paragraph 6O.3(d)(3) of the NFIP regulations, no encroachment (including fill) may take place within a regulatory floodway if that encroachment would cause an increase in flood levels. The regulatory floodway is adopted and enforced by the community, and any proposed revision to the regulatory floodway must be submitted by community officials to the Federal Emergency Management Agency (FEMA) for comment and possible revision to the NFIP map. The community should contact the Director, Mitigation Division of FEMA in Denver, Colorado, at (303) 235-4830 for guidance on the specific information required for the review. The elevation of the lowest adjacent grade to a structure (the lowest ground touching the structure) must be at or above the base flood elevation (BFE) for the structure to be outside the SFHA. Because the elevation of the lowest adjacent grade at the east end of Buildings I and 2 is lower than the corresponding BFE, the structures are within the SFHA. These elevations, in feet, are referenced to the National Geodetic Vertical Datum of 1929. This determination is based on the flood data presently available. Ruildin~ Elevation of I.nwest Adiacent Grade Base Flood Elevation I 2 5,297.5 5,294.4 5,298.7 5,298.7