Nearly a week of flooding in Colorado has left residents inundated with several inches of rain and floodwaters that have destroyed roads and residences throughout much of the state.
Four deaths at least have been linked to the flooding, and more than 500 people were still unaccounted for Sunday, according to a report by CNN.
The disaster will cost Boulder County alone an estimated $150 million just for roadway and bridge repairs according, the same report.
The continuous rain has affected the Front Range from Colorado Springs all the way north to Fort Collins, which is home to the vast majority of the state's population. Boulder County was reportedly hit with at least 7 to 8 inches of rain just on Wednesday and Thursday, causing massive damage. And more rain is expected to fall on Boulder County on Sunday.
Reuters reports that the National Weather Service has said some areas of Colorado have already seen more than 15 inches of rain over the course of three days, which exceeds the average rainfall totals for those areas in a year.
According to CBS Denver, heavy rain in the Boulder area forced the National Guard to ground helicopter crews, hampering rescue efforts on Sunday.
Despite these setbacks, rescue efforts continue as heavy rainfall and flash flooding continue to pummel parts of Colorado. Take a look at the aftermath left behind by the 2013 Colorado floods below in photos.
A home and car are stranded after a flash flood in Coal Creek destroyed the bridge near Golden, Colorado Reuters
Bennett drops a sand bag down to help funnel water down a street as heavy rains cause severe flooding in Boulder Reuters
Neighbors survey a dike created to funnel water down 7th Street as heavy rains cause severe flooding in Boulder Reuterse
Jack Templeton stands in knee deep water trying to access the storage facility after flooding from heavy rains in Boulder Colorado Reuters
Colorado National Guardsmen drive through floodwaters in Boulder County Reuters
Colorado National Guardsmen respond to floods in Boulder County, Colorado Reuters
A man takes photos of the damage from heavy rains in Boulder, Colorado Reuters
Deborah Haynes is directed off the tarmac at Boulder Municipal Airport after being flown down from Jamestown on a National Guard helicopter in Boulder Reuters
Ground crew members assist people rescued from one of the mountain towns in a National Guard helicopter at Boulder Reuters
A house collapses into a creek after floods in Jamestown, Colo., Saturday, Sept. 14, 2013. Reuters
Walters carries pieces of wood out of her basement while her cousin Dakota takes short break after heavy rains resulted in flooding in Boulder, Colorado Reuters
Neighbor Reznickek passes a piece of wood from the ruined basement to McCarthy as they work to clean up the flood damage in McCarthy's home in Boulder, Colorado Reuters
Hill tries to shore up his fence near a Jamestown Volunteer Fire Department truck that was stuck in mud and debris in Jamestown, Colorado Reuters
Heavy equipment work to clear the barely visible road, covered in 20 feet of mud, in Jamestown, Colorado Reuters
Main Street is seen covered with several feet of mud in Jamestown, Colorado, after a flash flood destroyed much of the town Reuters
Residents are transported in a pickup truck to be evacuated by helicopter from Jamestown, Colorado Reuters