Agenda - 12-11-2007-6d - Laserfiche WebLink

Browse Search

ATTACHMENT 2 Report on the Government Service Center Annex Elevation Certificate Attached is a copy of an elevation certificate for the building. This elevation certificate is an official document that a licensed land surveyor and the Orange County Floodplain Manager prepared for the property. The elevation certificate is also an important administrative tool of the National Flood Insurance Program. It is used to provide elevation information necessary to ensure compliance with the County's Flood Damage Prevention Ordinance, and is required to properly rate buildings constructed after the Flood Insurance Rate Maps (FIRMs) became effective. The certificate is not required for buildings constructed before the Orange County FIRM originally became effective on March 16, 1981, unless the owner wishes to be rated for flood insurance purposes. The certificate indicates annex is in a special flood hazard area (floodplain). If you presently do not carry flood insurance on the structures, you may wish to use the certificate to apply for a preferred flood insurance rating. The base flood elevation (BFE) for the Governmental Service Center Annex is 506.8 feet above mean sea level, which is 3.5 feet above the top of the basement floor elevation and 1.4 feet above the base of the central air unit. The main floor of the building is nearly 5.4' above the BFE. Because the Orange County Flood Damage Prevention Ordinance requires a two (2') foot freeboard above the BFE and to minimize potential flood damage, staff would recommend that the central air unit be elevated 3.4 feet. Since the building houses anon-residential use, the building can be retrofitted with flood-resistant entry doors into the basement areas. Any other utilities in the basement should be either elevated or walled off from intruding . floodwaters. Any stored materials should be elevated at least five (5') above the basement floor. No cost estimates for such flood damage retrofitting have been prepared.