Dam fails in eastern Iowa, causing massive flooding

Dam fails in eastern Iowa, causing massive flooding
By the CNN Wire Staff
July 24, 2010 5:58 p.m. EDT

STORY HIGHLIGHTS
A dam failed in eastern Iowa on Saturday, forcing residents nearby to flee
National Weather Service reported a 30-foot-wide gap in the berm alongside the dam
The breach was caused by "massive rain" of 10 inches in 12 hours, officials say
Hopkinton, population 700, is evacuated and Monticello under flood warning
(CNN) -- A dam on an eastern Iowa lake suffered a "catastrophic" failure Saturday, sending a massive amount of water into nearby communities and forcing residents to flee, officials said.

The Lake Delhi dam, about 45 miles north of Cedar Rapids, failed as a result of "massive rain -- a very unusually high amount this season," according to Jim Flansburg, communications director for Gov. Chet Culver.

Culver told CNN that nearly 10 inches of rain had recently fallen in a 12-hour period in the area and was "too much water for the dam to hold."
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Dam fails in eastern Iowa