I thought this was pretty cool and had to share it. I have seen a couple of engineering shows and Modern Marvels on History Channel about this project and now it is at completion and set to open Saturday.
Hoover Dam is framed in the newly completed by-pass bridge spanning the Colorado River Tuesday, Oct. 12, 2010, near Boulder City, Nev. The bridge will be dedicated on Thursday and open to the public Saturday. Tuesday, Oct. 12, 2010, near Boulder City, Nev.
Read more and see a slideshow on the Hoover Dam Bridge here on Yahoo!
Here's the site for the complete history of the bridge building and facts on http://www.hooverdambypass.org/
Here is the Bureau of Reclamation's site about the Hoover Dam and visiting there at http://www.usbr.gov/lc/hooverdam/