High water levels flow down Boulder Creek following overnight flash flooding in downtown Boulder, Colo., Thursday, Sept 12, 2013. The widespread high waters are keeping search and rescue teams from reaching stranded residents and motorists in Boulder and nearby mountain communities as heavy rains hammered northern Colorado. (AP Photo/Brennan Linsley)
High water levels flow down Boulder Creek following overnight flash flooding in downtown Boulder, Colo., Thursday, Sept 12, 2013. The widespread high waters are keeping search and rescue teams from reaching stranded residents and motorists in Boulder and nearby mountain communities as heavy rains hammered northern Colorado. (AP Photo/Brennan Linsley)
In Colorado, heavy rains and scarring from recent wildfires sent walls of water crashing down mountainsides early Thursday, Sept. 12, 2013 causing flash floods.
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At least three people were killed and another person is still missing.
The flood toppled buildings and stranded motorists.
Three cars fell into the creek when the bridge on a business access road at Highway 287 and Dillon Road at the Broomfield and Lafayette border collapsed.
Access to the mountain community of Lyons has been completely cut off because of by the flood.
The rains transformed Boulder Creek, into a raging torrent that spilled over its banks and flooded adjacent parking lots and streets.
St. Vrain River has also overflowed.
The city of Boulder and some other towns along the Front Range of the Rockies were especially hard hit as flood waters came down from the rain-soaked mountainsides.
The flooding was reported all along the Front Range, from Colorado Springs to north of Fort Collins but Boulder County was hardest hit, with up to 6 inches of rain falling over 12 hours.
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