Eastern Terrebonne Landbridge – East
Eastern Terrebonne Landbridge – East
The Eastern Terrebonne Landbridge project extends across the eastern Terrebonne marshes and will be built in two phases. The eastern component, from Bayou Lafourche to Bayou Pointe-aux-Chênes, will be constructed in the first phase, and the western and central components, from Bayou Pointe-aux-Chênes to Bayou Terrebonne, will be built in the second phase. The project’s goal is to fill all open water within the landbridge footprint, leaving only a few bayous. This approach aims to restrict water flow from Terrebonne …
Belle Pass-Golden Meadow Marsh Creation
The Belle Pass-Golden Meadow Marsh Creation project will create approximately 29,000 acres of marsh in the Terrebonne Basin. This project will be located along both sides of Bayon Lafourche from just south of Galliano, through Leeville and down to Port Fourchon. Like much of Louisiana’s coast, this sediment starved stretch of Terrebonne Basin has seen significant wetland loss due to many existing factors including sea level rise, subsidence, and saltwater intrusion, which were compounded by the devastation of Hurricane Ida …
Houma Navigation Canal Lock Hydrologic Restoration
This project will construct a lock on the Houma Navigation Canal located in western Terrebonne Bay. The Houma Navigation Canal is a significant conduit for salt water into Terrebonne’s rapidly disappearing marshes. Construction of this project will help control salinities in the navigation canal and increase the effectiveness of the Increase Atchafalaya Flow into Terrebonne Marshes project by retaining and enhancing the distribution of fresh water in the wetlands to the north of the lock. The construction of the Houma …
Atchafalaya Diversions
The Atchafalaya Diversions 2023 Coastal Master Plan project consists of two proposed projects diverting water and sediment from the Atchafalaya River: Atchafalaya River Diversion and Increase Atchafalaya Flow to Terrebonne. The Atchafalaya River Sediment Diversion will provide basin-wide benefits to marshes in southwest Terrebonne Parish. This project will see sediment and fresh water diverted into the marshes to help build land and sustain other nearby projects planned for construction like the Mauvais Bois Ridge Restoration. The wetlands in Terrebonne Basin …
Isles Dernieres Restoration
This project will restore the Isles Dernieres barrier islands located on the western end of the Terrebonne Basin barrier shoreline. Storm-induced breaching and erosion, sediment starvation, sea level rise, tidal increases caused by interior land loss, subsidence and canal-induced hydrological changes have reduced the size of these islands. This loss directly impacts the fish and wildlife of the region and leaves the marshes and infrastructure in the interior of Terrebonne Bay vulnerable to saltwater intrusion, higher wave energies and storm …
Timbalier Islands Restoration
This project will restore the Timbalier Islands located on the eastern end of the Terrebonne Basin barrier shoreline. Sediment starvation, sea level rise, tidal increases and storm events have driven migration of the islands to the northwest and severely reduced their length and width. This has diminished important barrier island habitat in the area and increased the vulnerability of interior Terrebonne Bay marshes to high-energy waves and storm surge. This project will restore dune and beach habitat as well as …