MassDOT says it is routinely inspecting overpass bridge joints across Massachusetts throughout the winter. The Prudential Tunnel is inspected every two years and is currently being fully inspected, officials said. Officials said the tunnel is safe and will remain fully open, with any additional work or lane closures taking place overnights.

State highway officials are conducting emergency inspections of the Prudential Tunnel in Boston after chunks of concrete fell onto the roadway Friday afternoon.