Seawall Repair Kiawah Island, 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 Kiawah River, the Atlantic, and tidal marsh. Service areas include Kiawah Island, Rhett's Bluff. Call 866-398-9323 to confirm service at your specific address.

Kiawah River tidal current and marsh; oceanfront armoring restricted; aging river bulkheads.

Seawall repair in Kiawah Island typically costs $175–$550 per linear foot. An 80-foot Kiawah River and the Intracoastal Waterway 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 Kiawah River and Stono Inlet tidal exchange with full Charleston area 5-6 foot tidal amplitude. Combined with Charleston County private resort island soils with high-value residential and resort seawall maintenance requirements, these forces accelerate void formation, panel cracking, and joint separation. Kiawah Island's Stono Inlet creates strong tidal currents throughout the Kiawah River system — seawalls near the inlet mouth experience among the strongest tidal scour forces in the Charleston area.

Most Kiawah Island 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 Kiawah River and the Intracoastal Waterway. 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. Kiawah Island's Stono Inlet creates strong tidal currents throughout the Kiawah River system — seawalls near the inlet mouth experience among the strongest tidal scour forces in the Charleston area. Early detection of voids and micro-cracks costs far less to address than waiting for visible structural failure.