U.S. Air Force Lt. Col. Tom Niichel with the Colorado Air National Guard's 240th Civil Engineering Flight, measures the depths of flood waters along a bike path while conducting a site survey of bridges affected by flooding in Loveland, Colo., Sept. 19, 2013. Members of the Colorado Air National Guard's 240th Civil Engineering Flight use a tape measure to measure the size of damage to a bridge affected by floodwaters in Loveland, Colo.,Sept. 19, 2013. Colorado and Wyoming National Guard units were activated to provide assistance to people affected by massive flooding along Colorado's Front Range. Colorado Guard members have evacuated about 700 people by ground and military aerial evacuations currently totaling 2,394. (U.S. Army photo by Sgt. 1st Class Jon Soucy/Released)