In this May 21, 2013, photo construction crews build an emergency levee on the Tongue River near Cavalier, N.D., hoping to prevent floodwaters from eroding the emergency spillway at the ... more 
In this May 21, 2013, photo construction crews build an emergency levee on the Tongue River near Cavalier, N.D., hoping to prevent floodwaters from eroding the emergency spillway at the earth-and-concrete Renwick Dam. The small town of Crystal flooded Tuesday, forcing a few residents from their homes, and officials said Wednesday the dam was holding back the water, though the 1,300 residents of Cavalier were still being told to stay away from their homes. (AP Photo/Grand Forks Herald, John Stennis) less 
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Associated Press | Photo By Grand Forks Herald, John Stennis
Wed, May 22, 2013 2:56 PM EDT