The Mike O’Callaghan–Pat Tillman Memorial Bridge spans the Colorado River between the states of Arizona and Nevada. Construction of the bridge approaches began in 2003, and construction of the bridge itself began in February 2005. The bridge was completed in 2010 and the entire bypass route opened to vehicle traffic on October 19, 2010. This photo was taken just one week later, when traffic was still pretty much non-existent. The bridge was the first concrete-steel composite arch bridge built in the United States, and incorporates the widest concrete arch in the Western Hemisphere. At 900 feet (270 m) above the Colorado River, it is the second highest bridge in the United States after the Royal Gorge Bridge, and is the world’s highest concrete arch bridge.
(On January 7, 2017 I had the brilliant idea to start a second blog called In Retrospect to highlight some of my older images. That idea was actually not so smart because I found there was no real need for a second blog. It just took additional time and the theme I chose never worked properly. So after one month, I shut it down. I will continue with my bright idea here, and will post every
Saturday Friday. The images will be from 2009 through 2015. But no later. For now.)