I was walking across the bridge at the time. The sidewalk was closed so I was walking along the bike path anyway, right next to cars, and all of a sudden there's this huge CRASH and the bridge shook and for a moment I thought I was going to be creamed. Then I realized the crash was below, not on level with me, and saw the cars backing up on Storrow. I detoured onto the foot bridge that leads to the Esplanade to take you all a few pictures:
You can kind of see the guy under the bridge in the second and third pictures, in the white pants, out surveying what was wrecked. I think it was the driver. I don't think anyone was hurt.