Lake Borgne, located southeast of Lake Pontchartrain in St. Bernard Parish, is surrounded by a coastline of fragile marsh that serves as a buffer for communities across southeast Louisiana and the Gulf of Mexico. The Lake Borgne Marsh Creation project will restore the deteriorating marsh along the lake's south shore using 13 million cubic yards of dredged material to create and nourish approximately 2,770 acres of land.

In 2023, CPRA will complete construction on the project's containment dikes, which will surround the inner marsh area and be filled with sediment. The project is expected to be complete by 2024.

The project is part of a larger restoration strategy to reestablish thousands of acres along the exterior rim and intertidal marsh habitat of the Pontchartrain Basin, which protects local communities from storm surge. The project will also increase protection and effectiveness of the Hurricane and Storm Damage Risk Reduction System (HSDRRS) around the Greater New Orleans region, demonstrating CPRA's integrated approach to restoration and protection.