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  1. Old River Control Structure - Wikipedia

    The Old River Control Structure is a floodgate system in a branch of the Mississippi River in central Louisiana. It regulates the flow of water from the Mississippi into the Atchafalaya River, thereby …

  2. When the first European settlers arrived, they found the Red River emptying into the Mississippi at Turnbull’s Bend, and the Atchafalaya River a well-defined distributary flowing out of...

  3. The Mississippi Levee System and the Old River Control Structure

    Jan 6, 2000 · After the '73 flood, the corps saw the need for a backup structure, and built the Old River Control Auxiliary Structure (ORCAS) to alleviate some of the pressure on the main control structure …

  4. Old River Control Structure | EROS - USGS

    Built in 1963 to regulate the amount of flow into the Atchafalaya, the Old River Control Structure prevents the Atchafalaya River from capturing the Mississippi.

  5. America's Achilles' Heel: the Mississippi River's Old River ...

    May 10, 2019 · Rising up from the flat, wooded west flood plain of the Mississippi River are four massive concrete and steel structures that would make a pharaoh envious: the U.S. Army Corps of Engineers’...

  6. The structure is founded on steel piles and is a 566-foot-long concrete structure constructed in 1959. The structure resembles a dam with 11, 44-foot-wide gates to prevent migration of the Mississippi …

  7. This special report is divided into topics relevant to understanding the subsurface environment under and surrounding the Old River Control Complex (ORCC), specifically the Old River Low Sill Structure …