The Glen Canyon Bridge or Glen Canyon Dam Bridge is a steel arch bridge in Coconino County, Arizona

Arizona

Arizona ; is a state located in the southwestern region of the United States. It is also part of the western United States and the mountain west. The capital and largest city is Phoenix...

, carrying U.S. Route 89

U.S. Route 89

U.S. Route 89 is a north–south United States Highway with two sections, and one former section. The southern section runs for 848 miles from Flagstaff, Arizona, to the southern entrance of Yellowstone National Park...

 across the Colorado River

Colorado River

The Colorado River , is a river in the Southwestern United States and northwestern Mexico, approximately long, draining a part of the arid regions on the western slope of the Rocky Mountains. The watershed of the Colorado River covers in parts of seven U.S. states and two Mexican states...

. The bridge was originally built by the U.S. Bureau of Reclamation to facilitate transportation of materials for the Glen Canyon Dam

Glen Canyon Dam

Glen Canyon Dam is a concrete arch dam on the Colorado River in northern Arizona in the United States, just north of Page. The dam was built to provide hydroelectricity and flow regulation from the upper Colorado River Basin to the lower. Its reservoir is called Lake Powell, and is the second...

, which lies adjacent to the bridge just 865 feet (263.7 m) upstream. Carrying two lanes, the bridge rises over 700 feet (213.4 m) above the river and was the highest arch bridge in the world at the time of its completion in 1959.