This project aimed to create marsh habitat and restore a ridge at the Spanish Pass Increment of the Barataria Basin in Louisiana. Spanish Pass is a natural historic tributary of the Mississippi River with degraded channel banks and adjacent marsh. This project created 397 acres of ridge and 1,261 acres of marsh habitat.  

Barataria Basin, just south of New Orleans, Louisiana contains marshes that are rapidly subsiding from leveeing of the Mississippi River and loss of regular sediment depositions. The marsh received sediment from a nearby location to increase elevation and relieve plant stress. This restoration effort increased aboveground biomass and accretion rates. 

Bayou La Branche, originally a brackish marshland, was levied and pumped into farmland before flooded into a large, open-water pond after the 1915 Hurricane. USACE and Louisiana Department of Natural Resources aimed to re-create the marsh habitat with an area of 70% land and 30% water within 5 years of construction.

A tidal marsh in Bayou Lafourche, Louisiana was degrading due to subsidence and sea-level rise, as well as a drought-induced die-off of Spartina alterniflora. 7.5 hectares of marsh was restored using thin-layer placement of dredged material. Sediment placement improved the recovery of the marsh and increased plant biomass. 

This project created a living shoreline comprised of bioengineered, marsh-fringing oyster reefs. 11.5 miles of reef breakwaters, marine mattresses, and rock revetments were placed off the shoreline to establish the bioengineered reefs. This living shoreline will provide self-sustaining coastal protection from erosion, wave action, storm surges, and sea-level rise.

Coastal Louisiana contains around 40% of the wetlands in the continental United States and accounts for approximately 80% of the nation’s wetland loss due to sea-level rise, storm surges, and subsidence. This project restored 1,600 hectares of bald cypress (Taxodium distichum) forest at Pointe-aux-Chenes Wildlife Management Area. 

The New Orleans district of the U.S. Army Corps of Engineers is strategically placing dredged sediment from the Mississippi River federal navigation channel to restore marsh habitat, improve and ensure the integrity of the navigation channel, and promote sediment deposition in the bay. 

This project created 335 acres of marsh and 28,342 linear feet of earthen containment dike in Bayou Grande Cheniere, Louisiana. This project utilized sediment materials from the Mississippi River borrow areas. This marsh and containment dike will enhance biodiversity and coastal protection from erosion and wave action.  

This project will restore 295 acres of tidal marsh that had severely degraded from erosion, subsidence, storms, and canal and pipeline construction. Marsh restoration will reduce risks from storms and sea-level rise, and improve the coastal resiliency of communities in the Parish.  

This project aimed to restore beach, dune, and back-barrier marsh habitats at four barrier island locations in Louisiana (Chenier Ronquille, Shell Island, North Breton Island, and Caillou Lake Headlands). These restoration projects will restore habitat for brown pelicans, terns, skimmers, and gulls, and increase the resiliency of the islands to sea-level rise and storm surges.

Salt marsh near Venice, Louisiana, on a northern portion of the Mississippi River Delta is experiencing high rates of sea-level rise, subsidence, fragmentation, and disturbance from oil and gas exploration. Dredged material was placed on the marsh to restore elevation and provide opportunities for emergent marsh to recolonize fragmented areas. 

The marshes in Paul J. Rainey Wildlife Sanctuary in Vermillion Parish, Louisiana have degraded due to periods of flooding by rivers and canals that result in prolonged inundation periods, subsidence, and salinity increases. To restore elevation and decrease inundation, dredged material was placed on 105 square kilometers of the marsh.  

Forty-three acres of salt marsh in the Southern Mississippi River Delta near Venice, Louisiana was restored using thin-layer placement. Dredged material was placed on the marsh to combat sea-level rise, subsidence, and sediment deficiencies. The project successfully reduced vegetation stress and increased elevation.  

The U.S. Fish & Wildlife Service initiated the Duralde Cajun Prairie Restoration Project in Evangeline Parish in 1994 to restore the coastal tallgrass prairie from historical agricultural and land conversion degradation. They arranged purchased of 334 acres of Cajun Prairie and then conducted series of restoration activities, including clearing invasive tallow trees and transplanting native vegetation.

This project restored 295 acres of beach and dune habitat and created or restored 144 acres of intertidal marsh habitat in Jefferson Parish immediately northeast of Grand Isle, Louisiana. These restoration projects will protect 14,000 linear feet of shoreline along West Grand Terre Island.