A quick Google search and apparently there's a new section of the bridge opening or something? I still don't quite see why this is significant?
But the bay bridge is closed this weekend:
http://www.sfmta.com/baybridgelaborday
The reason why this is interesting is that it shows that google is very responsive about updating their maps in real time based on recent events. It's impressive. It is also interesting because the Bay Bridge is a major thoroughfare in the area, and it's odd and unique to see a portion of it cut off in the map.
[1] http://en.wikipedia.org/wiki/I-5_Skagit_River_Bridge_collaps...
The new span opens on Tuesday.
It'll be interesting to see how long it takes other map platforms to make the change(s).