Global InformationIHNC Lake Borgne Surge Barrier information
Inner Harbor Navigation Canal Lake Borgne Surge Barrier | |
|---|---|
 The IHNC Surge Barrier, being built by the US Army Corps of Engineers. The GIWW in the foreground, the MRGO in the background | |
| Coordinates | 30°0′20″N 89°54′5″W / 30.00556°N 89.90139°W |
| Crosses | GIWW, MRGO |
| Locale | New Orleans, Louisiana |
| Owner | US Army Corps of Engineers |
| Characteristics | |
| Material | Concrete, steel |
| Total length | 1.8 miles |
| History | |
| Construction start | 2008 |
| Construction end | 2013 (major construction)[1] |
| Construction cost | $1.1 billion[2] |
| Location | |
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The Inner Harbor Navigation Canal Lake Borgne Surge Barrier is a storm surge barrier constructed near the confluence of and across the Gulf Intracoastal Waterway (GIWW) and the Mississippi River Gulf Outlet (MRGO) near New Orleans. The barrier runs generally north-south from a point just east of Michoud Canal on the north bank of the GIWW and just south of the existing Bayou Bienvenue flood control structure.
Navigation gates where the barrier crosses the GIWW and Bayou Bienvenue can be worked to reduce the risk of storm surge coming from Lake Borgne and/or the Gulf of Mexico. Another navigation gate (Seabrook Floodgate) has been constructed in the Seabrook vicinity, where the IHNC meets Lake Pontchartrain, to block a storm surge from entering the IHNC from the Lake.
- ^ "IHNC Lake Borgne Surge Barrier" (PDF). U.S. Army Corps of Engineers. June 2013. Retrieved December 12, 2013.
- ^ "USA, New Orleans: $1.1 billion surge barrier construction works half way". Dredging Today. February 2010.