出典:Wikipedia
出典:『Wikipedia』 (2011/06/23 05:21 UTC 版)
The Old River Control Structure (ORCS) is a floodgate system located in a branch of the Mississippi River in central Louisiana. Completed in 1963, the complex was built by the U.S. Army Corps of Engineers in a side channel of the Mississippi known as "Old River," between the Mississippi's current channel and the Atchafalaya Basin, a former channel of the Mississippi.