Lots of police activity on the high bridge right now – 911 site mentions a “motor vehicle accident” – avoid it for a while if you can. 1:50 UPDATE: Just got a note from WSB frequent contributor Christopher Boffoli, who says it was a “three-car accident caused by road debris.” As of a few minutes ago, he says, traffic wasn’t moving, which our eyewitness verified too. 2:30 UPDATE: No new eyewitness reports but the bridge cams look good, so it appears to have been cleared.