Inundation Maps – Flood of 2011 on the Lower Mississippi

Lower Mississippi water flows and inundation map – 11 & 16 May 2011, from the Corps.

Warning to the residents from the Corps’ WWW site:

Every year, written notices are issued to all interests reminding them of the possibility of operation of the floodway. In the event that Morganza needs to be opened, the USACE project managers, along with news media and civil officials, will help notify all interested parties as soon as possible. On receipt of such notice, expeditious action must be taken as soon as possible to protect life and property. If the Morganza Floodway is operated, there is a possibility that personal property will be flooded. In the event of an opening, all water and/or gas wells must be sealed and capped to prevent contamination from floodwaters.

Current High Water Flows – 16 May 2011 (Full size image)

Current High Water Flows

Current High Water Flows – 11 May 2011

Current High Water Flows

 

 

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Estimated Inundation Map Scenario 1 depicts anticipated impacts from operation of the Morganza Floodway at 50% of its capacity with full operation of the Bonnet Carre’ Spillway. The previously released Estimated Inundation Map is the same as the Estimated Inundation Map Scenario 1.

Estimated Inundation Map

 

 

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Inundation Map Scenario 1a depicts anticipated impacts from operation of the Morganza Floodway at 25% of its capacity with full operation of the Bonnet Carre’ Spillway. (Click here for full size image.)

Estimated Inundation Map

Estimated Inundation Map Scenario 2 depicts anticipated impacts from non-operation of the Morganza Floodway with the Bonnet Carre’ Spillway operating at 100% capacity.

Estimated Inundation Map

 

 

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Estimated Inundation Map Scenario 3 depicts anticipated impacts from non-operation of the Morganza Floodway with excess flowing through Old River and the Bonnet Carre’ Spillway operating at 100% capacity.

Estimated Inundation Map

 

 

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