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. ~~~ November 28, 1994 Mr. Don Marostica Page 4 • Within the flood fringe buildings may be constructed on fill material to a point no lower than 1 foot above the base flood elevation; the till must extend at least 15 feet beyond the building extremities; and, the lowest level of the building must be 1 foot above the base flood elevation and this includes basements; • Any new construction less than 1 foot above the base flood elevation must be flood proofed, including utilities; the code contains specific descriptions of how flood proofing must be accomplished; • The administrator, presumably Mr. John Slavik, has the responsibility of interpreting the exact location of the flood cringe boundary; the map from the county provides a good basis for this determination; and • Permit applications must be certified by a registered professional engineer or architect and include valley cross sections river bed profiles, both of which can be found in the RCI Report. Flood Insurance FEMA was contacted to determine the availability of flood insurance for potential structures on the CTM Place property. According to Mr. Fred Metzler, flood insurance is available for any structure or facility located anywhere within the tloodplain. Rates vary according to the elevation of the structure's lowest level relative to the base flood elevation and the value of the structure. For instance, the annual cost of flood insurance for a building worth $100,000.00 located 1 toot above the base Tlood elevation would be $142.00. The cost for the same building located 2 feet above the base flood elevation would be $115.00. Finally, the cost for the same building located below the base flood elevation would be $360.00. Surveying of Flood Elevations When constructing new buildings within flood-prone areas it is necessary to accurately determine the elevation of the structure relative to the base flood elevation. To facilitate this process, permanent survey markers were installed along the Big Thompson River as part of the Report prepared by RCI. One of these markers is fairly conveniently Located east of your property about 140 feet west of the intersection of Colorado Highway 402 and County Road 11 H. A survey line will need to be extended from this point to your property in order to confirm vertical placement of structures relative to the base flood elevation.