Trelleborg Marine Systems, part of Trelleborg Engineered Systems, rapidly supplied materials for the Inner Harbor Navigation Canal (IHNC) Surge Barrier project. The nearly two-mile-long surge barrier is a key component in the U.S. Army Corps of Engineers’ ‘Hurricane and Storm Damage Risk Reduction System’, designed to better protect the greater New Orleans area, USA.
The IHNC surge barrier is a new feature, similar to a floodwall but much larger, that has been designed and constructed to reduce the risk of storm damage to some of Louisiana’s most vulnerable areas – New Orleans East, metro New Orleans, the 9th Ward, and St. Bernard Parish. This project aims to help protect these areas from storm surges coming from the Gulf of Mexico and Lake Borgne.
During Hurricane Katrina, a storm surge travelled to the confluence of the Mississippi River Gulf Outlet and the Gulf Intracoastal Waterway just 8 miles east of New Orleans, LA, and entered the Industrial Canal. Following this, many sections of existing levees inside New Orleans were overtopped or compromised causing wide spread flooding in New Orleans and surrounding areas. The new Inner Harbor Navigation Canal Surge Barrier structure will help to reduce the risk of events such as this in the future.
Trelleborg’s ability to provide the required materials within a demanding construction schedule helped it secure the contract. Trelleborg’s NC3 anchors were used to fix rub rails made of ultra-high-molecular-weight polyethylene (UHMW-PE) to approach walls leading to the surge barrier structure.
Once supplied and installed, this will be the largest known project carried out using cast-in NC3 anchors manufactured from 100% stainless steel A316 material, all produced in the USA in compliance with Buy American Act requirements.
For more information please visit www.trelleborg.com/marine.