Crews working on the "signature tower" for the new eastern span of the San Francisco-Oakland Bay Bridge took another step toward finishing the job today. They're hoisting the tower's fourth segment into place, which will bring the structure to 480 feet high—just 45 feet short of its ultimate heights. Caltrans has all the information on the new bridge, and on the innovative and cool-looking self-anchored suspension tower, here: http://baybridgeinfo.org/.
Here's KQED's Rachel Dornhelm giving a quick peek at the work earlier today:
Update March 1 Slideshow from the Chronicle