Laserfiche WebLink
of <br />40 <br />• <br />:7 <br />An eight (8) -year renourishment interval is sought for project cost effectiveness, <br />maximum funding participation by the Florida Department of Environmental <br />Protection (for those projects which are eligible for state support), and realistic <br />sand placement volumes as advance restoration. It is assumed that sand <br />requirements for each identified shoreline sector targeted for restoration is <br />available and of suitable quality so as to minimize the overfill requirements. That <br />is, the sand must be compatible, or of higher quality, with the 'native' sand on the <br />pre -project shoreline. Final sand volume requirements for each shoreline <br />designated for restoration will be determined by many design factors, among <br />which sand compatibility will be critical. <br />The estimated total sand volume to initially restore the shoreline sectors <br />envisioned to receive sand is approximately 2.03 million cubic yards. The <br />borrow area(s) for this sand will be identified by Indian River County in a offshore <br />geotechnical study presently underway. Once borrow area(s) locations relative <br />- to sectors planned for sand placement are determined, the critical design factors <br />including pumping distances, sand quality and quantity, and nearshore <br />hardbottom characterizations will allow project sand quantity estimates to be <br />refined. <br />The beachfill projects are assumed to require approximately 2.03 million cubic <br />yards of sand placed along a total of approximately 44,000 feet (8.3 miles) of the <br />Indian River County Atlantic Ocean shoreline. Exact construction berm <br />elevations and widths will be dependent upon sand quality and shoreline <br />conditions at the time of preliminary design. Preliminary estimates for unit <br />beachfill volumes range from 40 to 53 cubic yards per front foot of shoreline. <br />The above values were determined following analysis of existing conditions and <br />modification of project boundaries (and the requisite beachfill volumes) from <br />those sectors identified in the BPP. <br />96-9WPHS2HEP0HTIDWTMOIr4WE 32 <br />