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Vice Mayor highlights severe erosion in county draft beach‑preservation plan, urges continued dune replenishment
Summary
Vice Mayor Alwater reviewed Indian River County's 602‑page draft beach‑preservation plan and said sectors that include Indian River Shores have seen substantial dune retreat and volume loss; the plan recommends continued beach and dune nourishment but is constrained by offshore hard bottom and regulatory requirements.
Vice Mayor Alwater urged continued beach and dune nourishment for sectors that include Indian River Shores after walking council members through the county's draft 602‑page beach‑preservation plan.
Alwater said the county maps show significant dune‑toe retreat and, in sector 4 (which covers most of Indian River Shores), a long‑term loss of beach volume: "In sector 4 we've lost 14 to 15 cubic yards per linear foot as you're going down the beach," he said, noting recent nourishment in 2025 provided temporary relief but that wind and wave patterns continue to move sand offshore.
The presentation explained why nearshore sand placement is often impractical here: "Because of that hard bottom, you have to be very careful how you move sand from offshore," Alwater said, describing exposed limestone and reef that impose ecological constraints and limit some engineering options.
Alwater also reviewed sea‑level and storm projections cited in the plan, noting historical sea‑level rise of roughly 6 inches between 1992 and 2020 and modeling of coastal storm events that show significant potential shoreline retreat in a 1% (once‑in‑100‑year) event. He described efforts to have sector 4 designated "critically eroded" and said progress in Tallahassee to achieve that listing required persistent advocacy.
The consultant's recommendations summarized in the plan emphasize continued beach and dune nourishment as the primary strategy for the town's sectors, with monitoring and further study for alternatives where hard bottom limits options. Council members and staff noted the plan is public and will be linked on the town and county websites for residents seeking the full data and appendices.
Vice Mayor Alwater recommended continuing to press county and state partners for enforcement of agreements (he criticized the Sebastian Inlet District for failing in some past commitments) and said the plan's long list of procedural steps (permits, environmental studies, potential litigation risk) explains why projects take years to implement.
