Workers labor at the site of where a steel wall was undermined by flood water at Oak Grove Lutheran school Sunday, March 29, 2009, in Fargo, N.D. The bloated Red River briefly breached a dike early Sunday, pouring water into the school campus and the mayor called it a "wake-up call" for a city that needs to be vigilant for weaknesses in levees that could give way at any time. Crews managed to largely contain the flooding to the school campus, preventing more widespread damage in nearby areas. (AP Photo/Elaine Thompson)

