The U.S. Army Corps of Engineers is conducting market research for a levee enlargement project along the NOV-10A reach in Plaquemines Parish, Louisiana, involving raising the levee to 18.6 feet and constructing wave and stability berms. The estimated construction price range is between $100,000,000 and $250,000,000, with a firm-fixed price contract anticipated. Responses to this sources sought notice are due by 10:00 AM CST on June 18, 2026. The government is seeking input to determine if the requirement can be set aside for small businesses or socioeconomic programs. Performance of services will be on the West Bank of the Mississippi River in Plaquemines Parish, LA.