Central Wetlands Diversion

The Union Freshwater Diversion will convey fresh water from the Mississippi River into West Maurepas swamp, helping to prevent saltwater intrusion and encourage new vegetation growth.

The Manchac Landbridge Diversion directs freshwater flows and some sediment into degraded swamps and marshes adjacent to the Bonnet Carre Spillway to increase nutrient input,improve water quality, and foster vegetation growth.

This project consists of marsh restoration on an eroding, narrow land-bridge that separates Lake Pontchartrain from Lake Borgne and serves as a critical landscape feature that helps provide storm surge protection for more than 1.5 million people.

The Golden Triangle Marsh Creation will use sediment from nearby Lake Borgne to create and restore marsh in an area badly damaged by saltwater intrusion and erosion.

The East Maurepas Freshwater Diversions will benefit this large swamp complex by reconnecting it with the river, helping prevent further loss and the conversion to open water, as well as helping to temper rising salinities throughout the entire Pontchartrain Basin.