»In which the freeway melted

Roadway to Bay Bridge collapses after tanker fire explosion:

"The dispatcher said eastbound Interstate Highway 80 to eastbound Interstate Highway 580 collapsed after heat from the tanker explosion on the westbound Interstate Highway 580 at Interstate Highway 80 rose and melted the upper roadway." (emphasis mine)

UPDATE: Burly video of the conflagration, although not of the aftermath traffic snarl. A Google Maps widget shows the section of roadway what collapsed. As usual, they Keyhole BBS has the scoop.