Calcasieu-Sabine Large-Scale Marsh and Hydrologic Restoration Project
Calcasieu-Sabine Large-Scale Marsh and Hydrologic Restoration Project
This project is intended to reduce stress from inundation (and, if possible, salinity) within wetlands in order to maintain vegetative productivity and reduce conversion of wetlands to open water. The project will achieve and maintain marsh elevation through a combination of 1) continued active water management practices that reduce saltwater intrusion into the marshes through operation of the existing water control structures along the lake-rim, 2) implementing large-scale marsh drainage improvements that reduce the flood stress that is currently driving …
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 would 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.
Increase Atchafalaya Flow into Terrebonne Marshes
This hydrologic diversion project stretches from the Atchafalaya River to the Houma Navigation Canal, which is part of the Gulf Intracoastal Waterway system. The marshes in the influence area are nearly an equal distance from the Mississippi and Atchafalaya rivers and are blocked from significant amounts of river water and sediment. These marshes have been rapidly converted to open water because of saltwater intrusion and sediment starvation. This project would dredge and deepen a portion of the Gulf Intracoastal Waterway …