Here is a Flickr photoset of the inside of the new eastern span of the San Francisco - Oakland Bay Bridge, taken by construction worker SF Emperor.
The new span is being built to replace the old one, a portion of which fell in the 1989 Loma Prieta earthquake.
http://www.flickr.com/photos/wjcendak/sets/72157600329781288/ [Flickr] | Article at Telstar Logistics - via Boing Boing