The Isle of Palms seawall was identified in the Seawall Masterplan as one of the top priority seawall replacements within the City of Fort Lauderdale.
In addition to the structural degradation status of this seawall, it also gets overtopped during king tide events several times a year. These tidal events cause mass flooding on Isle of Palm Drive, damaging both public and private property and making public right of ways impassible due to the salt water inundation.
The Isle of Palms seawall is approximately 900 linear feet long. The new replacement seawall design will consist of cantilever steel sheet piles with a concrete cap, and will have a minimum cap elevation of 5.00’ NAVD. The new design will ensure that this seawall will no longer be breached during tidal events.
Update: May 5, 2020
- Sheet pile installation has been completed (100% of total length) as of March 31st.
- The contractor, Poseidon Dredge & Marine, Inc., has poured approximately 150 feet of concrete cap (17% of total length), starting from the north end of the project.
- The contractor continues installing the framework and steelwork for the next section of concrete cap to be installed;
- Installation of jet filters and outfall penetrations through the seawall has been completed as of April 30th.
- Approximately 500 feet of concrete cap is expected to be poured by the end of the month (56% of total length for the month of May, 73% of total length overall).
- The contractor is doing everything they can to keep the project on schedule despite challenges with suppliers due to the ongoing COVID-19 pandemic.
Neighbors were invited to a public meeting on the seawall project to get additional information and ask questions on September 30, 2019. See below for informational materials:
The City has put together a list of Frequently Asked Questions as the City pursues this Community Investment Project to reduce the frequency, intensity, and duration of flooding on Isle of Palms Drive, to provide more consistent access to the Isle of Palms neighborhood, and to improve coastal resilience to tidal flooding and sea level rise.