A fire has taken out part of the Bay Bridge entrance causing it to be closed. The Chron has some gnarly pictures of the bridge folded and tearing like a piece of paper.A tanker full of gasoline overturned and we presume exploded into the blaze:

bq. The tanker, which was full of vehicle-ready gasoline, seems to have disappeared. One Caltrans worker at the scene held up his thumb and forefinger an inch apart to describe how big the tanker is now.

The bridge is still open, though, if you’re going to the city. From the CoCo:

bq. Although the collapse has closed Interstate 580 approaching the Bay Bridge, motorists can continue to use Interstate 80 to get to and from San Francisco over the bridge.

Tanker fire destroys part of MacArthur Maze [SF Gate]
Roadway leading to Bay Bridge collapses after tanker explosion [The CoCo]
Section of Highway Collapses in Oakland Due to Overturn of Gas Tanker [Daily Cal]