On January 21, debris from the Prudential Tunnel fell onto the Massachusetts Turnpike, prompting immediate action from MassDOT. A freeze-thaw cycle was identified as the cause, and crews conducted inspections at 154 locations within the tunnel system to assess further risks. Overhead shielding was installed to prevent additional concrete from falling, ensuring safety for drivers. MassDOT committed to ongoing inspections and confirmed the tunnel remains safe for use, with any necessary lane closures happening overnight for minimal disruption.
MassDOT inspection crews conducted overnight inspections and installed overhead shielding after concrete debris fell from the ceiling on Jan. 21, causing damage and traffic disruptions.
Concrete debris fell from the Prudential Tunnel ceiling due to a freeze-thaw cycle, which dislodged concrete when water in an expansion joint froze and thawed.
Crews investigated 154 locations within the tunnel system and installed shielding at affected expansion joints to prevent further concrete falling onto the roads.
The Prudential Tunnel is under routine inspections every two years, currently receiving full assessments to ensure safety following recent incidents.
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