Concrete Debris Falls from Prudential Tunnel, Damaging Vehicles on I-90

On Friday afternoon, a section of concrete collapsed from the ceiling of the Prudential Tunnel in Boston onto Interstate 90, damaging several vehicles but fortunately causing no injuries. The Massachusetts Department of Transportation (MassDOT) reported that the dislodged concrete, described as 'non-structural' at an expansion joint, fell into the left and middle travel lanes, leading to traffic diversions. Recent freeze/thaw cycles likely contributed to the incident, resulting in the concrete becoming saturated and subsequently delaminating. Traffic is expected to face delays as crews work to remove debris and conduct inspections over the weekend. Police and transportation officials are on-site managing the situation. The incident recalls past concerns about tunnel safety, although no serious injuries were reported this time.