Barataria Bay Rim Marsh Creation and Nourishment

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Project Location

Barataria Basin, Jefferson and Plaquemines Parishes

Project Description

The goal of this project is to create approximately 251 acres of marsh and nourish approximately 266 acres of marsh along the northern rim of Barataria Bay in Jefferson and Plaquemines parishes using sediment dredged from Barataria Bay.

Issue Addressed

Historic wetland loss in the area occurs in the form of interior marsh loss and shoreline erosion along Barataria Bay. The interior loss is caused by subsidence, sediment deprivation, and construction of access and pipeline canals.

Project Goals

The proposed project would create approximately 251 acres and nourish approximately 266 acres of marsh using sediment dredged from Barataria Bay. The majority of the dredged material would be fully contained. For creation of approximately 15 acres of marsh and nourishment of 34 acres in the eastern portion of the project, the dredged material would be semi-contained. Containment dikes will be degraded as necessary to reestablish hydrologic connectivity with adjacent wetlands. In case the area does not re-vegetate on its own, the maintenance cost estimate will include funds to plant 25% of the created marsh at Year 3.

Verify Date

1/15/2020

Project Information

Project Type(s):

Marsh Creation

Project ID:

BA-0195

Basin(s):

Barataria

CPRA Program:

Coastal Wetlands Planning, Protection, and Restoration Act (CWPPRA)

Federal Sponsor:

Natural Resources Conservation Service (NRCS)

CPRA Project Phase:

Engineering & Design

Parish(es):

Jefferson, Plaquemines

Estimated Cost:

$ 23.5 million

Project Benefits

Restoration Icon
Acres Benefit:
  • 517 acres benefited