The Inner Harbor Navigation Surge Barrier is the largest surge barrier in the world, the largest single project ever built in Louisiana, and the largest civil works design/build project ever undertaken by the U.S. Army Corps of Engineers.
To protect against storm surge, the West Closure Complex shuts off the Intracoastal Waterway using the largest sector gate in the U.S. The Complex’s drainage pump station is the largest in the world with the capacity to pump more than 19,000 cubic feet of water per second.
Massive T-walls have replaced smaller I-walls in sections of the 350-mile system of interior and perimeter levees and floodwalls. The transitions between floodwalls and levees have been strengthened and armored.
To address the threat of storm surge moving up the Mississippi River, a 15-mile segment of the river levee system co-located within the Hurricane and Storm Damage Reduction System is being brought up to 100-year level of risk reduction.