In this Aug. 31, 2012 file photo, the town of Braithwaite, La., is inundated with floodwaters from Isaac as downtown New Orleans is visible in the distance. Isaac barely had hurricane-strength winds when it blew ashore southwest of New Orleans a year ago, but its effects are still apparent in coastal areas where it flooded thousands of homes. After landfall on Aug 28, 2012, Isaac stalled, dumping more than a foot of rain and churning a monstrous storm surge. Water flowed over levees and destroyed homes and businesses in coastal Louisiana and Mississippi.
In this Aug. 31, 2012 file photo, the town of Braithwaite, La., is inundated with floodwaters from Isaac as downtown New Orleans is visible in the distance. Isaac barely had hurricane-strength winds when it blew ashore southwest of New Orleans a year ago, but its effects are still apparent in coastal areas where it flooded thousands of homes. After landfall on Aug 28, 2012, Isaac stalled, dumping more than a foot of rain and churning a monstrous storm surge. Water flowed over levees and destroyed homes and businesses in coastal Louisiana and Mississippi. David J. Phillip AP File
In this Aug. 31, 2012 file photo, the town of Braithwaite, La., is inundated with floodwaters from Isaac as downtown New Orleans is visible in the distance. Isaac barely had hurricane-strength winds when it blew ashore southwest of New Orleans a year ago, but its effects are still apparent in coastal areas where it flooded thousands of homes. After landfall on Aug 28, 2012, Isaac stalled, dumping more than a foot of rain and churning a monstrous storm surge. Water flowed over levees and destroyed homes and businesses in coastal Louisiana and Mississippi. David J. Phillip AP File

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