The new bridge at Hoover Dam is nearing completion.  Here are some very cool pictures taken during its construction.  Thanks to Gene B. for sending them along.

To read more visit this site:

http://www.hooverdambypass.org/whats_new.htm

There is an opportunity for a book: A Hundred Bridges to See Before You Die It could be put out by the ASCE who publish a bridge calendar every year.