THE GLEN CANYON BRIDGE or GLEN CANYON DAM BRIDGE is a STEEL ARCH BRIDGE in COCONINO COUNTRY, ARIZONA, CARRYING U.S. ROUTE 89 ACROSS the COLORADO RIVER. The BRIDGE WAS ORIGINALLY BUILT BY the U.S. BUREAU of RECLAMATION to FACILITATE TRANSPORTATION of MATERIALS for the GLEN CANYON DAM,WHICH LIES ADJACENT to the BRIDGE JUST 865 FEET (264 m) UPSTREAM. CARRYING TWO LANES, the BRIDGE RISES OVER 700 FEET (210 m) ABOVE the RIVER and was the HIGHEST ARCH BRIDGE in the WORLD at the TIMES of its COMPLETION in 1959.