> twin-rib concrete arch.
> The Colorado River Bridge is the central portion of the Hoover Dam Bypass
> Project.
> Construction on the nearly 2,000 foot long bridge began in late January
> 2005 and the completion of the entire Hoover Dam Bypass Project is
> expected
> in Late 2010.
> When completed, this signature bridge will span the Black Canyon (about
> 1,500 feet south of the Hoover Dam), connecting the Arizona and Nevada
> Approach highways nearly 900-feet above the Colorado River .
