This is a photo from Hoover Dam looking back at the Mike O'Callahan - Pat Tillman Memorial Bridge, with the Colorado River far below. The structures on the right are massive utility transmission poles that carry the electricity up from the dam to the transmission complex that I showed about a week ago.
It is difficult to imagine how structures such as this can be built. They built temporary towers on each side of the gorge, strung cables between them, and poured the concrete bridge in place. One of the cables failed during high winds in September 2006 and delayed the project by two years.
Check out beautiful travel photos of Villa Balbianello on Lake Como, Italy at Viva la Voyage!