Evacuation Ordered as Mississippi Dam Fails

Low-lying areas at risk of taking an unwelcome soaking

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.

Officials in Tangipahoa Parish, La., fear the water it would pour into the already swollen river would flood low-lying areas downstream from the park.