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Old River Control Structure
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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
The Old River Control Structure complex. View is to the east-southeast, looking downriver on the Mississippi, with the three dams across channels lead
The Old River Control Structure complex. View is to the east-southeast, looking downriver on the Mississippi, with the three dams across channels leading to the Atchafalaya River to the right of the Mississippi. Concordia Parish, Louisiana is in the foreground, on the right, and Wilkinson County, Mississippi, is in the background, across the Mississippi on the left.
Old River low-sill control structure discharging water into the Atchafalaya, May 2011
Old River low-sill control structure discharging water into the Atchafalaya, May 2011
Morganza Spillway
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The Morganza Spillway or Morganza Control Structure is a flood-control structure in the U.S. state of Louisiana. It is located along the western bank of the Lower Mississippi River at river mile 280,
Old River Control Structure
…on both port cities. The Mississippi flood of 1973 almost caused the control structure to fail. Maintenance of the integrity of the ORCS, the nearby Morganza Spillway, and other levees in the area is essential to prevent such a diversion. Jeff Masters of Weather Underground notes that failure of the complex "would…
The Morganza Spillway, between the Mississippi River and the Atchafalaya Basin, shown while open in 1973. Water flows from the Mississippi (upper righ
The Morganza Spillway, between the Mississippi River and the Atchafalaya Basin, shown while open in 1973. Water flows from the Mississippi (upper right) into the Morganza Floodway (lower left).
One of the 125 gates on the tail bay side of the Morganza Floodway.
One of the 125 gates on the tail bay side of the Morganza Floodway.
Anticipated inundation from Scenario 1
Anticipated inundation from Scenario 1
Anticipated inundation from Scenario 1a
Anticipated inundation from Scenario 1a