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BOOK 96 FA.GE2 D. Floodplain Cut & Fill Balance Waiver - Blue Cypress Lake Park Rest Rooms The Board reviewed the following memo dated 10/9/95: TO: James E. Chandler County Administrator THROUGH: James W. Davis, P.E. Public Works Dir ecto AND Roger D. Cain, P. County Engineer FROM: David B. Cox, P.E ASL Civil Engineer CONSENT AGENDA SUBJECT: Request for Floodplain Cut & Fill Balance Waiver for Blue Cypress Lake Park Restrooms REFERENCE.: AA -95-11-140 / 95080129 DATE: October 9, 1995 DESCRIPTION AND CONDITIONS Carter Associates, Inc. is requesting a waiver of the 100 year floodplain cut and fill balance requirement for the subject project on behalf of the Parks Division of the Public Works Department. The restroom site is located within the existing Blue Cypress Lake Park property on the west shore of Blue Cypress Lake. The elevation of the existing ground is two feet below the base flood elevation of 27.5 feet N.G.V.D. established by F.E.M.A. As described in the attached letter from Carter Associates dated September 25, 1995 the fill necessary to elevate lowest floor of the new restroom building to 0.5 feet or more above the base flood elevation will displace 180 cubic yards of the existing floodplain storage. The site plan was approved by the Community Development Department staff on September 28, 1995 with the condition that a County Type B Flood Protect ion-Stormwater Management System Permit be obtained. ALTERNATIVES AND ANALYSIS The site meets the L.D.R. Section 930.07(2)(d)3. waiver request criteria of being located in the St. Johns Marsh and is underlain by Terra Ceia organic soil as described in the U.S.D.A. Soil Conservation Service Soil Survey of Indian River County.- If a waiver is not granted the restroom and its water treatment equipment could be re -designed to be elevated on piling foundations to satisfy the cut and fill balance. 7 OCTOBER 17, 1995