[Jsmscaleros]

If someone has posted this already, I apologize, but this bridge is pretty amazing. It is the new Hoover Dam bypass which will be completed in 2010, assuming funding doesn't dry up before then:
http://www.hooverdambypass.org

Here are some recent shots from the above link (these are all from March 2009, I believe it is now actually connected in the middle):











And a render of the completed bridge: