Lake Tangipahoa Dam

Torrential rain dumped by Hurricane Isaac threatened to burst a dam in Mississippi on Thursday, triggering the mass evacuation of local residents, while large areas of the region were still flooded and without power but getting ready to mop up.

Louisiana officials have ordered evacuation of low-lying, sparsely-populated areas along the Tangipahoa River because an Isaac-hammered dam at a state park lake in southwest Mississippi near the Louisiana border is in danger of failing.

Torrential rain dumped by Hurricane Isaac threatened to burst a dam in Mississippi on Thursday, triggering the mass evacuation of local residents, while large areas of the region were still flooded and without power but getting ready to mop up.

Louisiana officials have ordered evacuation of low-lying, sparsely-populated areas along the Tangipahoa River because an Isaac-hammered dam at a state park lake in southwest Mississippi near the Louisiana border is in danger of failing.