I can't imagine that it'll be more than a couple of days, realistically. But it sure sounds dramatic, doesn't it? (Of course, no matter how long it is, it's really going to suck for people who use that bridge to commute. And if it's more than a couple of days, my weekend plans could get... interesting.)
I could also go off on my rant about how we'd have a shiny new bridge by now if it weren't for Willie Brown and our need to grandstand against Pete Wilson, but I'll spare you all that one.