Posted on November 3, 2025
NEW ORLEANS — The U.S. Army Corps of Engineers, New Orleans District, is seeking public input on proposed modifications to the Reach G East levee project within the Upper Barataria Basin, Louisiana flood risk reduction project.
A Supplemental Environmental Assessment (SEA) and Section 404(b)(1) evaluation have been prepared to assess the potential environmental effects of these modifications, which build upon the previously assessed 2021 Initial Feasibility Report/Environmental Impact Statement (IFR/EIS).
Key changes to the Reach G East levee design include an increased toe-to-toe width of approximately 258 feet (300 feet including maintenance berms), compared to the previously planned 170 feet. The 8,500-linear-foot levee will maintain its existing alignment and feature 1:4 horizontal to vertical side slopes.
To address challenging soil conditions, the project will now be constructed in a staged approach. Recent soil borings revealed the presence of very soft peat and organic deposits, requiring a phased building process to allow for soil stabilization. The levee will initially be constructed to 11 feet in elevation, followed by lifts to 13 feet after a two-year wait period, 16 feet around year 15, and ongoing maintenance lifts up to 16 feet. Stability berms and a high-tensile strength geotextile will also be incorporated to reinforce the levee section.
Public Review & Comment Period:
The draft SEA and Finding of No Significant Impact (FONSI) are available for a 30-day public review and comment period, beginning today and ending on Nov. 30. The SEA and supporting documents can be viewed online at: http://www.mvn.usace.army.mil/Environmental/NEPA/
How to Submit Comments:
Questions and comments regarding the project or the SEA can be submitted via email to CEMVP_Planning@usace.army.mil. Formal written correspondence should be addressed to:
District Engineer St. Paul District, Corps of Engineers
ATTN: Regional Planning and Environment Division North
332 Minnesota Street, Suite E1500
St. Paul, Minnesota 55101
