In the US, the astonishing Hoover Dam Bypass bridge crosses the vacuum to rally Clark County, Nevada in Mohave County in Arizona. Before its completion in September 2010, browse amazing photos of the site.
For a budget 240 million, the bridge over 600 meters long is part of a road structure 5,6 kilometers.
To find out more photographs is here.
For more information on the Hoover Dam Bypass Bridge visit the project website.