On Saturday, May 14th two (2) gates were opened at Morganza Floodway and as of Monday, May 16th, a total of 15 gates have been opened.

There is no public access at Morganza Floodway.


The Bonnet Carre Spillway was partially opened on Monday, May 9, 2011 in order to keep the volume of the Mississippi River flows at New Orleans from exceeding 1.25 million cubic feet per second (cfs). By the end of Sunday, May 15th a total of 330 bays have been opened. The Corps will continue to monitor the Mississippi River flow, and will open additional bays as needed.

REMINDER: DO NOT STOP ON AIRLINE HIGHWAY (HWY 61) OR THE WEST SIDE OF THE SPILLWAY TO FISH, PHOTOGRAPH OR SIGHTSEE. Public access to the Bonnet Carré Spillway is limited to the downstream end of the structure, near the Project Office, until further notice. All public access areas within the spillway, including public boat launches, Lower Guide Levee Road, and the St. Charles Parish Recreation Area near U.S. Highway 61 are also closed. Because the office’s access road will be blocked off, vehicles will need to park either along the river levee or River Road


The U.S. Army Corps of Engineers, New Orleans District released the Potential Inundation Map, Scenario 1a. It depicts anticipated impacts from operation of the Morganza Floodway at 25% of its capacity with full operation of the Bonnet Carre’ Spillway, and it also assumes a Gulf stage of 2 feet.

The map is available at:

The previously released Estimated Inundation Map, Scenario 1 is available at: