Almost 95 years ago, the first traffic traveled across Navajo Bridge, a bridge that spans Marble Canyon in northern Arizona. First known as the Grand Canyon Bridge, construction began in 1927. And it was a big challenge to build. But, everything was finished in January 1929. The bridge carried motorists 467 feet above the Colorado River. The original structure still exists today, though it’s been a pedestrian bridge since 1995 when a newer bridge was built 150 feet downriver to handle the heavie