The McPhaul Swinging Bridge is located about 18 miles north of Yuma on Highway 85. It was constructed by Yuma County and the state of Arizona in 1929 to allow travelers driving between Yuma and Quartzsite to cross the Gila River.
But a few years after the suspension bridge, with a span of 798 feet, was completed, the road (now Highway 85) was realigned and a new bridge replaced the initial installation. No longer used, the McPhaul Bridge stands silently, leading to nowhere while withstanding time, the elements and a 1990 fire.
The story goes that this bridge was built before the Golden Gate Bridge because this was a test or trial to see if the expansion bridge would work. It was known for many years as the Mock Golden Gate Bridge.