Old River Control Structure Structure to prevent the Atchafalaya becoming the main channel of the Mississippi. The project was completed in 1963, and it completely sealed off the Old river. However, a lock, a diversion channel, and flood spillway were installed to allow barges to pass between the Atchafalaya and Mississippi. The U.S. Army Corps of Engineers measured the amount of water flowing through the Mississippi River and compared it to the amount entering the Atchafalaya Basin by monitoring "latitude flow" at the latitude of the Red River Landing, located five miles downstream of Old River. In this case, latitude flow is a combination
Morganza to the Gulf Total federal cost: $576,355,000 Total non-federal cost: $310,345,000 The feasibility report was completed in March 2002. The Chief’s Report was signed on 23 August 2002. Preliminary Engineering and Design (PED) for the Houma Navigation Canal lock is ongoing and scheduled to be completed in December 2007. PED for the additional project features is also ongoing and scheduled to be completed in FY 08. A bill containing the authorization for Terrebonne's Morganza-to-the-Gulf hurricane protection system, a system of levees, floodgates and a lock on the Houma Navigation Canal, passed the U.S. Senate by an overwhelming margin today. The Senate voted 91