Seawall Repair Isle of Palms, SC

SC DHEC-OCRM critical-area permit + Charleston County. USACE Charleston District; SC DHEC Office of Ocean & Coastal Resource Management (OCRM). Under the SC Beachfront Management Act, new oceanfront seawalls are banned - work focuses on bulkheads, riprap and living shorelines on the Intracoastal and tidal creeks

We serve waterfront properties along the Intracoastal Waterway, Hamlin Creek, and the Atlantic. Service areas include Isle of Palms, Wild Dunes, Hamlin Creek. Call 866-398-9323 to confirm service at your specific address.

Intracoastal and creek tidal exposure; oceanfront armoring banned so work is on the Intracoastal side.

Seawall repair in Isle of Palms typically costs $175–$550 per linear foot. An 80-foot Intracoastal Waterway and the Atlantic Ocean residential bulkhead runs $10,000–$32,000 for repair versus $35,000–$70,000 for full replacement. Call 866-398-9323 for a free on-site estimate.

The primary causes are Charleston Harbor tidal amplitude carried through the ICW to Isle of Palms with Breach Inlet tidal current acceleration. Combined with Charleston County barrier island sandy soils with active vacation rental market and luxury residential waterfront, these forces accelerate void formation, panel cracking, and joint separation. Breach Inlet separates Isle of Palms from Sullivan's Island and creates strong tidal current acceleration on the ICW — seawalls near the inlet experience above-average scour rates.

Most Isle of Palms seawall repairs using polyurethane injection or helical tiebacks are completed in 1–2 days. We schedule work around low tide windows for maximum access and accuracy.

Structural repairs including tieback installation and cap replacement require Charleston County permits and may require DEP or Army Corps review for waterfront properties adjacent to Intracoastal Waterway and the Atlantic Ocean. Polyurethane injection and maintenance repairs generally do not require permits. We handle all permitting coordination for major projects.

We recommend annual inspections for seawalls older than 20 years, plus inspection after every named storm event. Breach Inlet separates Isle of Palms from Sullivan's Island and creates strong tidal current acceleration on the ICW — seawalls near the inlet experience above-average scour rates. Early detection of voids and micro-cracks costs far less to address than waiting for visible structural failure.