Lake Borgne Marsh Creation

The Lake Borgne Marsh Creation (LBMC) Project Increment One is one of six projects selected through the Natural Resources Damage Assessment (NRDA) process to restore injuries associated with the Deepwater Horizon Oil Spill. As outlined in the Final Restoration Plan dated January 2017 prepared by the Louisiana Trustee Implementation Group (TIG), the Plan focuses on the implementation of large-scale marsh creation projects due to the immediate benefits to coastal habitats directly impacted by the oil spill. The LBMC Project is one of several large-scale marsh creation projects that are proposed. CPRA selected Duplantis Design Group, PC (DDG) and its sub-consultants to deliver the LMBC Project.

This specific project is anticipated to create approximately 3,703 acres of marsh with an anticipated construction budget of $120M. When completed, the project will represent one of the largest marsh creation projects to be implemented by CPRA to date. Borrow material for the marsh creation is expected to be obtained from Lake Borgne; however, an evaluation of borrow material from the Mississippi River, as well as Mobile Sands will also be conducted as part of this project. The marsh creation area will extend from the eastern shore of Bayou Yscloskey approximately 4.3 miles to the east toward Lena Lagoon.

As the lead engineer and project manager, DDG will coordinate all data collection activities including topographic, bathymetric, magnetometer, and side-scan surveys; geotechnical data collection, and environmental data collection activities in support of regulatory compliance. DDG will conduct an alternatives analysis to define the marsh creation borrow and fill areas, prepare detailed designs and cost estimates, obtain all required regulatory permits, and support bidding services.

Project Details

Location
Lake Bornge, LA
Client
Coastal Resotration & Protection Authority
Services
Coastal Engineering Design Project Management
Scale
3,703 Acres of Marsh
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