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U.S. Army Corps of Engineers Beach Projects

The U.S. Army Corps of Engineers controls various beach projects on the Isle of Palms which the City does not manage:

Sediment Rehandling Project - Ahtna

The Sediment Rehandling Project is a beneficial use project, meaning it reuses material that would otherwise be wasted or disposed of.

The U.S. Army Corps of Engineers (USACE) is rehandling sediment from four existing placement areas to make room for future Atlantic Intracoastal Waterway dredging. Using that sand for beach renourishment puts it to productive use instead of dumping it.

The project is funded in part through routine Atlantic Intracoastal Waterway operations and maintenance funds, along with support from the Bipartisan Infrastructure Law.

In short, this approach maximizes existing federal dollars while providing shoreline protection, rather than wasting usable material.

Intracoastal Waterway Dredging at Breach Inlet - Cottrell

U.S. Army Corps of Engineers (USACE) contractor, Cottrell, will begin placing sand on the Isle of Palms late January 2026.

The project comes at no cost to the Isle of Palms, as it is fully funded through federal maintenance of the Intracoastal Waterway. This dredging would occur regardless of whether the Island accepted the sand. 

USACE has been dredging multiple shoals in the Intracoastal Waterway near the Isle of Palms, from Dewees Inlet to Breach Inlet. One of these shoals in Breach Inlet is the source of the sand designated for beach placement on the Isle of Palms.

Cottrell will dredge this shoal and place sand directly onto the Isle of Palms. Beach placement is projected to begin in late January 2026 and continue through March 2026, coinciding with the ongoing Sediment Rehandling Project managed by Ahtna.

Funding

The U.S. Army Corps of Engineers (USACE) projects are funded in part by the Bipartisan Infrastructure Law (BIL) as well as regular funding for Atlantic Intracoastal Waterway Operations & Maintenance.

Updates

Ahtna logo
12/16/2025 - Ahtna continues to make steady progress placing sand along the beach and is preparing to transition to 24/7 operations, pending an increase in crew size. The U.S. Army Corps of Engineers projects a mid-March 2026 completion date, which aligns with Cottrell’s project timeline. Both contractors appear prepared to coordinate their efforts to avoid conflicts between their respective beach...
Cottrell logo
12/16/2025 Cottrell is currently dredging the Dewees Inlet Shoal within the Atlantic Intracoastal Waterway, with material being placed in an open-water placement area. This phase of work is expected to be completed by the end of the week (~December 21, 2025). Beginning next week (~December 22, 2025), Cottrell will shift operations to dredge a shoal identified as “1B” in Breach Inlet, with material...
Cottrell logo
12/8/2025- The U.S. Army Corps of Engineers (USACE) has contracted Cottrell to dredge the Atlantic Intercoastal Waterway (AIWW) in vicinity of a shoal in breach inlet and place the sand along the Isle of Palms beach between 6th and 9th Avenues. The USACE anticipates Cotrell to begin as early as January 2026 with 24/7 operation. The original engineering plans state Cottrell will be on site for 32...
Ahtna logo
12/8/2025- The U.S. Army Corps of Engineers (USACE) has contracted Ahtna to manage the 'Sediment Rehandling at Breach Inlet' project. Ahtna will be taking sand from four placement areas along the intercoastal waterway, and placing it along the Isle of Palms Beach from the Sea Cabin Villas area south to Breach Inlet. This will restore needed capacity for future dredging projects. As of this week...