A crash inside the Tip O’Neill Tunnel in Boston caused extreme traffic delays of several hours for the Thursday morning commute.Info: Check current traffic conditionsVideo shows the moment cargo on a truck hit the roof of the tunnel, and debris was littered on the roadway. The cargo crumpled in the impact and other vehicles had to dodge the truck as it suddenly stopped in a middle lane.Prior to entering the tunnel, the truck's driver was warned by an automated system, the Massachusetts Department of Transportation said. The height of the truck triggered a sign that displayed, "Overheight vehicle, stop, await police" on a message board outside the tunnel.The incident happened on Interstate 93 southbound. Two lanes through the tunnel were closed for about an hour while the crash was cleaned up, which led to significant backups throughout the area. Delays of more than three hours were reported.Massachusetts State Police said the driver, a 59-year-old from Ontario, Canada, was cited after the crash for operating an overheight and overwidth truck. The company that operates the truck has had 33 previous violations, including one for unsafe driving. “I came from Melrose, and it took too long to get here -- almost 40 minutes,” commuter Silvana Deoliva said.Commute times nearly doubled, as traffic moved at single-digit speeds.Joe Bryan drives a shuttle bus from Andover. He said it took him more than two hours to get to Medford.“I've been a professional driver all my life, most of my adult life, anyway, so I’m used to the rigmarole of all of the traffic, but today it was a bit much,” he said.

A crash inside the Tip O’Neill Tunnel in Boston caused extreme traffic delays of several hours for the Thursday morning commute.

Info: Check current traffic conditions


Video shows the moment cargo on a truck hit the roof of the tunnel, and debris was littered on the roadway. The cargo crumpled in the impact and other vehicles had to dodge the truck as it suddenly stopped in a middle lane.

Prior to entering the tunnel, the truck's driver was warned by an automated system, the Massachusetts Department of Transportation said. The height of the truck triggered a sign that displayed, "Overheight vehicle, stop, await police" on a message board outside the tunnel.

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The incident happened on Interstate 93 southbound. Two lanes through the tunnel were closed for about an hour while the crash was cleaned up, which led to significant backups throughout the area.

Delays of more than three hours were reported.

Massachusetts State Police said the driver, a 59-year-old from Ontario, Canada, was cited after the crash for operating an overheight and overwidth truck. The company that operates the truck has had 33 previous violations, including one for unsafe driving.

“I came from Melrose, and it took too long to get here -- almost 40 minutes,” commuter Silvana Deoliva said.

Commute times nearly doubled, as traffic moved at single-digit speeds.

Joe Bryan drives a shuttle bus from Andover. He said it took him more than two hours to get to Medford.

“I've been a professional driver all my life, most of my adult life, anyway, so I’m used to the rigmarole of all of the traffic, but today it was a bit much,” he said.