Strong winds emerge periodically from the canyons and these have strong enough to overturn tractor-trailer trucks and, at one time, railroad cars. Centerville is a Region VIII Star Community for Project Impact and is now finishing its second year in Project Impact. Salt Lake City, Salt Lake County is the Capitol of Utah with a population of about 150,000 people. The Wasatch Fault runs along the eastern bundary of the city and is capable of generating a 7.5 Richter Magnitude Earthquake. The city also faces wildfire threat.
Most canyons have flood control with detention basins.
In 1983, two of Salt Lake's main streets were turned into rivers conveying water across the valley to the Jordan River. Moab, Grand County, population 6,000, is in southeast Utah and is a popular vacationing spot with river running on the Colorado River into Canyonlands National Monument. Arches National Park and Deadhorse Point State Park is on the north side of the city. The major hazard threatening the city is flood from two main creeks, Mill Creek and Pack Creek. The Colorado River rarely presents a flood threat.