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e4I. INDIAN RIVER COUNTY, FLORIDA MEMORANDUM TO: Jason E. Brown, County Administrator THROUGH: Richard B. Szpyrka, P.E., Public Works Director THROUGH: James W. Ennis, P.E., PMP, Asst. Public Works Director FROM: Quintin D. Bergman, M.S., Environmental Specialist SUBJECT: Work Order No. 2018008-2 APTIM Environmental and Infrastructure, Inc. Sector 4 - Critically Eroded Area Analysis DATE: December 4, 2019 DESCRIPTION AND CONDITIONS On April 17th, 2018, the Board entered into a Continuing Consulting Engineering Services Agreement for Professional Services contract with APTIM Environmental & Infrastructure, Inc. (APTIM) for professional coastal engineering and biological support. The Sector 4 project area is a 3.3 -mile section ofshorelinethat extends just south of Old Winter Beach Blvd. to Surf Lane. The majority of the project area is located within the Town of Indian River Shores. Outlined in the 2015 Indian River County Beach Preservation Plan identifies Sector 4 as eroding by an approximated 1.8CY/ft/yr. This section of the beach has sustained damage from Hurricane's Matthew (2016), Irma (2011), and Dorian (2019). As defined in Rule 62B-36.002(4), Florida Administrative Code, "Critically Eroded Shoreline" is a segment of shoreline where natural processes or human activities have caused, or contributed to, erosion and recession of the beach and dune system to such a degree that upland development, recreational interests, wildlife habitat or important cultural resources are threatened or lost. Critically eroded shoreline mayalso include adjacent segments or gaps between identified critical erosion areas which, although they may be stable or slightly erosional now, their inclusion is necessary for continuity of management of the coastal system or for the design integrity of adjacent beach management projects. Following the above definition, Sectors 1, 2, 3, 5, and 7 have been classified by Florida's Department of Environmental Protection (FDEP) as Critically Eroded Areas (CEA). Sector 4 is currently not classified as a CEA. In the future, when the County is proposing large scale beach and dune nourishment projects, permitting agencies prefer the proposed project area to be designated as a CEA. Additionally, in order to qualify for State funding assistance for future projects the proposed project area has to be designated as a CEA. On February 13, 2018 County Staff submitted a letter to FDEP requesting the Department's assistance in evaluating our shoreline in Sector 4 for the purposes of a CEA designation. The submittal included beach profile survey data from 2013 through 2017 along with a summary of sea turtle nesting data prevalent to Sector 4. On March 9, 2018 the County received a response letter from FDEP stating that the beaches within Sector 4 do not meet the definition of a CEA. Therefore, Sector 4 remains without the CEA designation. C:\Granicus\Legistar5\L5\Temp\05778ac0-62df-4db4-b99d-8f3e198el bca.doc 115