Big Dig ceiling collapse
Traffic crawls over a closed Fort Point Channel Tunnel entrance in Boston during rush hour on July 11, 2006, a day after the collapse. | |
| Date | July 10, 2006 |
|---|---|
| Location | Boston, Massachusetts, U.S. |
| Coordinates | 42°20′50″N 71°02′28″W / 42.3471°N 71.0411°W |
| Cause | Ceiling collapse |
| Deaths | 1 |
| Non-fatal injuries | 1 |
The Big Dig ceiling collapse occurred on July 10, 2006, when a concrete ceiling panel and debris weighing 26 short tons (52,000 lb; 24,000 kg) and measuring 20 by 40 feet (6.1 by 12.2 m) fell in the Fort Point Channel Tunnel (which connects to the Ted Williams Tunnel) in Boston, Massachusetts, US. The panel fell on a car traveling on the two-lane ramp connecting northbound I-93 to eastbound I-90 in South Boston, killing a passenger and injuring the driver. Investigation and repair of the collapse caused a section of the Big Dig project to be closed for almost a year, causing chronic traffic backups.