Shaw of Baton Rouge, La., was selected as prime contractor on the design/build IHNC Surge Barrier project with subcontractor TMW, a joint venture of Traylor Bros. Three gates will be built into the barrier wall for vessel transport and closures (see Figure 1A and Figure 1B). Today, with more than $1.3 billion in federal funding, the Corps is building the largest civilian project of its kind in the world: the two-mile-long (3.2-km) Inner Harbor Navigation Canal Lake Borgne Surge Barrier (IHNC) that will close off the Mississippi River Gulf Outlet (MRGO) and better protect residents along the Gulf Intracoastal Waterway (GIWW) from 100-year-level storm surges. Army Corps of Engineers (Corps) took full responsibility for structural flood control failures in New Orleans. To their credit, and despite mitigating circumstances, the U.S. The American Society of Civil Engineers’ 2006 assessment report stated that the 350-mile-long (560-km) system of levees and floodwalls in New Orleans “failed catastrophically” and that the pumping stations designed decades ago were never meant to function in a major hurricane or to prohibit flooding once levees were overtopped or breached.
More than 1,830 people lost their lives to the fury of the August 2005 hurricane and its aftermath in the coastal areas of Mississippi, Alabama and Louisiana, with the majority of human loss occurring in the low-lying and poorly drained soils of New Orleans and its nearby parishes. history, Hurricane Katrina, armed with 140 mile per hour (193 km/h) winds and 20-foot- (6-m) high surges, overtopped and powered through half of the Army Corps of Engineers’ flood protection system for the City of New Orleans.
In one of the biggest storms to make landfall in U.S. This massive project stretches two miles along the Gulf Intercoastal Waterway and beyond the billion-dollar mark, designed to protect against 100-year storm surges.
A precast concrete pile cap, spun-cast piles and closure piles come together to form a storm surge barrier that will better protect New Orleans from future violent weather attacks on the Gulf Coast.
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