The major problem in the Hog Bayou Unit is land loss caused by failed agricultural impoundments and pump-offs. Other problems include saltwater intrusion from the Mermentau Ship Channel and a Gulf shoreline erosion rate of 40 feet per year. Over a period of 60 years, 9,230 acres (38% of the original marsh) was lost from the Hog Bayou Watershed, with the greatest amount of land lost between 1956 and 1974.
The major contributors to land loss in the Watershed are subsidence, compaction, and the oxidization of marsh soils in the former pump-offs and leveed agricultural areas between Hog Bayou and Highway 82. Large areas of marsh south of Highway 82 were “force drained” during the 1960s, 1970s, and 1980s. Many of these same areas now consist of open water with very little wetland vegetation. One of the largest areas of current loss is in and north of the project area.
The project’s goal is to create 430 acres and nourish 23 acres of emergent brackish and intermediate marsh. The project goal will be achieved by using dredged material from the Gulf to create two marsh creation cells (176 acres and 277 acres) in the project area east and west of Second Lake.
The project is located south of Grand Chenier in Cameron Parish, Louisiana, between Louisiana Highway 82, Hog Bayou, and east of Second Lake.
This project was selected for Phase I (engineering and design) funding at the January 2002 Task Force meeting. It is included as part of Priority Project List 11. Engineering and design is complete. Construction funding will be requested in 2013.
This project is on Project Priority List (PPL) #11.
The South Grand Chenier Marsh Creation’s three sponsors include
- Federal Sponsor: U.S. Fish and Wildlife Service
- Local Sponsor: Coastal Protection and Restoration Authority