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Technical Approach Page 9 SCOPE CP WORK Indian River County Beach Preservation Plan Project resign, Permitting and Engineering introduction: The implementation of the County -Wide Offshore Sand Search Investigation, Environme,atal Assessment and Pre -Engineering Design Phase for the County's Beach Restoration Program is of critical concern to the residents of Indian River County. These studies represent the first step in the implementation of the Coun'.y s Beach Preservation Plan. In order to accomplish this objective, the ATM Project Team proposes a technical approach that accomplishes: 4 per'formsnou of an affsho,•c geotechraii:di investigation to locate suitable quantity and quality sands for county -wide beach restoration efforts; mapping, characterization and impact assessment of the hardbottom resources which are present in the nearshofe zone of the County coastline from Sebastian Inlet State Park to Wabasso Beach, Vero Beach and South County Beaches. and, ♦ preparation of the Beach Restoration Pian. Design and Cost Estimate Report describing the findings of the geotechnical and hardtsotlom mapping studies, analyzing the technical and environmental feesitidity of acquiring Project permits and developing design beachfill templates and cost estimates of suf nt detail to supt,orl submitting permit applications to the State and Federal agencies Identifying the extent and quality of offshore sand resources and characterizing the types (ephemeral, worm -rock, etc) and pry kacmItions of the near shore hardbottom resources are critical to optimizing the deaV iW fecfdttaitirnq permitting of the beach nourishment Projects for Beach Sectors 1 & 2, 3. 5 and 7. The sand source investrgab ns will be performed by ATM coastal enguneers working onsite mh the prinwcipal inveetigato,rs from SEA, MEI and OEI. Similarly, the hardbottom mapping and charactenzabon investigations will be managed by ATM with the principal investigators from CSAf The final report, maps, coastal engineering design and environmental evaluations and design studies will be performed by ATM in-house. ATM will work in chose cooperation with Indian River County Staff as well as Florida Department of Environmental Protection officials to expedite field, laboratory and office components of the work wtute providing the County with the highest level of terwee The Project Scope of Services and tasking are presented in the Technical Approach that follows, Task 1: County -wide Geolochni+cal Investigation of Offshore Sand Resourcea Task 1,1 ReyLe 4nic and Phvsical Data Few studies exist that specifically targeted the distribution of offshore sand resources in Indian River County. A brief review of the existing body of information known at this time is presented below. In addition to those reports summarized below, County files will be reviewed to ensure that all known existing geotechnical information and data have been acquired for consideration by the Project Team, The U.S. Array Carps of Engineers Coastal Engineering Research Center Technical Memorandum Number 34, published in February 1971 and titled "Geomorphology and Sediments of the Inner Continental Shelf: Palm Beach to Cape Kennedy, Florida" (Meisburger and Duane, 1971), provides a comprehensive review of sediments investigated offshore of Indian River County as part of the Inner Continental Shelf Sediment and Structure Program (ICONS). In particular, this document provides an indication of a comprehensive investigation of an area referred to as the f=ort Pierce Grid, which includes extensive survey Iracklines and vibracores offshore of the southern half of the Indian River County shoreline. Field work in association with the ICONS study was undertaken between ,January and May 1965. Several large-scale shoal features are identified in the report, the most notable of which was referred to as the Indian River Shoal. Bethel Shoal is located contiguous to Indian River County waters, but is located in 9r3Sdmr�Urc o -p desipalprgeG cnsi.K,^SCOP[ Of WORK N2999M