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Indian River County Work Order Number - 2023051-01 Sector 4 Beach and Dune Restoration Project Exhibit 1 - Scope of Work Task 1a — Conceptual Design: To develop the proposed dune restoration conceptual design, Coastal Tech will: • Perform an assessment of historical and existing shoreline and volume change analysis based upon: o review of the prior Beach Preservation Plans (BPP) — to identify historical volume and shoreline changes; and o review of survey data provided by the County collected after the 2019 BPP — to identify recent volume and shoreline changes since completion of the 2019 BPP. • Estimate the sand volumes required to maintain a stable beach, based upon the historical volume change analysis. • Review historical native beach geotechnical information provided in the BPP, in the Sector 3 or Sector 5 design documents, on FDEP ROSSI website, or as provided by the County. • Compare the native beach geotechnical information to the geotechnical information for the upland sand mines that responded to the County's most recent dune restoration solicitations or as identified by the County. The native beach and upland mine geotechnical comparison will be based upon mean grain size, percent fines, sorting value, percent carbonate, and munsell color (wet/dry)sediment color, composition data • Develop a conceptual design for sand fill placement based upon historic dune crest widths and heights that maximizes sand placement within the dune without placement of sand below the mean high water line. The conceptual design template is expected to restore the dune up to pre -Ian and Nicole conditions while maintaining sand placement above the mean high water line. This approach is expected to avoid permit required nearshore Hardbottom monitoring. • Prepare an opinion of probable construction costs (OPC) for the proposed conceptual design. • Prepare a summary letter report documenting the results of the above with Conceptual Design Drawings illustrating the proposed construction template. • Confer with the County to (a) discuss the proposed dune restoration template, and (b) identify any revisions to the letter report deemed appropriate. Task 2 — Permitting — Pre -Application Conference Task 2a — Pre -Application Conferences: Coastal Tech will request an informal Pre -Application Conference with FDEP and a second conference with USACE staff to discuss the Project as envisioned or formulated, any issues and how they might be addressed, and requirements for obtainment of permits. Coastal Tech, in collaboration with FDEP staff and USACE staff, will invite representatives from FWC, USFWS, NMFS, USACE, and others as may be identified by the FDEP, USACE, and/or County to participate in the Pre -Application Conferences; Coastal Tech will then prepare a written summary of each conference. Page 2 of 3 August 22, 2023