Colorado Flooding Causes Evacuations, Deaths

John Hoffenberg watches the flow of water increase in Boulder, Colorado, Sept. 15, 2013.

An aerial photo of a flood-affected area of northern Colorado along the Big Thompson River, Sept. 14, 2013. (U.S. Air National Guard Handout photo)

An aerial view of vehicles submerged in flood waters along the South Platte River near Greenley, Colorado, Sept. 14, 2013.

Children board a rescue helicopter flown by the U.S. Air National Guard after severe flooding shut down major roads leading out of Jamestown, Colorado, Sept. 14, 2013. (U.S. Air National Guard Handout photo)

Will Pitner is rescued by emergency workers and neighbor Jeff Writer after a night trapped outside on high ground above his home as it filled with water after days of record rain and flooding at the base of Boulder Canyon, Colorado, Sept. 13, 2013.

Boulder Creek flows at high speed next to a road closed off by debris from days of rain and flooding, at the base of Boulder Canyon, Colorado, Sept. 13, 2013.

Nick Carter shovels debris as heavy rains cause severe flooding in Boulder, Colorado, Sept. 12, 2013.

A home and car are stranded after a flash flood in Coal Creek destroyed the bridge near Golden, Colorado, Sept. 12, 2013. 

A section of Highway 72 is missing after a flash flood tore through Coal Creek near Golden, Colorado, Sept. 12, 2013. 

Matthew Messner looks for a way to cross the sidewalk covered by heavy rains in Boulder, Colorado, Sept. 12, 2013.