Chandeleur Island Restoration (PO-0199)

FY 2027 STATUS Construction

Type Barrier Island Maintainence

Funding Source(s) StateNRDA

Estimated Cost $383 Million

The Chandeleur Islands, part of the Breton National Wildlife Refuge and one of the most ecologically significant barrier island systems in the Gulf, have lost nearly 90% of their landmass due to hurricanes, storm surge, and long-term erosion. Despite these losses, the islands continue to support critical habitat for migratory birds and three species of nesting sea turtles, underscoring the importance of restoring the Chandeleur Islands. CPRA anticipates beginning construction in late 2026, with a target construction duration of less than three years.

The barrier island restoration project will rebuild and enhance roughly 13 miles of North Chandeleur Island by utilizing dredged sediment to restore the island’s beach, dune, and marsh features. The project will also preserve and enhance the largest and most diverse assemblage of submerged aquatic vegetation (SAV) in the northern Gulf of America, which is critical for supporting marine habitats and water quality. New Harbor Island will be restored by placing dredged sediment to enlarge the island and by incorporating shoreline protection features.

Recent monitoring continues to highlight the ecological urgency of this effort: since 2022, more than 130 sea turtle crawls have been documented across three species, Kemp’s ridley, loggerhead, and green sea turtles, with multiple successful hatchings. Notably, Kemp’s ridley nesting activity marks the first confirmed occurrence in more than 75 years.

Together, these investments will strengthen the Breton Sound, restore and enhance critical wildlife habitat, and rebuild one of Louisiana’s most iconic barrier island systems for future generations.

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