Isle of Palms Waterway Boulevard Path Study
Isle of Palms, SC
Water Resource

Thomas & Hutton studied the 1.7-mile Waterway Boulevard Pathway in preparation to widen it from 5 feet to 8 feet. The study also investigated using the path as a “tidal barrier” to sea-level rise and extreme tides. The study investigated raising the path to various elevations (including assessing different methods), improving local drainage, and sealing the existing drainage systems (including assessing various gates and valves) to eliminate tidal intrusion. The study recommended a plan to provide tidal flooding protection to elevations 6 feet (NAVD 88). The recommended plan would protect the City from most “king tides” which currently inundate areas of the island (including an area surrounding a City fire station) several times a year. The City is currently pursuing grant funding for the implementation of the project.