MassDOT reports it shut the River Street bridge over the train tracks to vehicle traffic today after "bridge inspectors identified beam deterioration during a routine and fracture critical inspection."
The state said the shutdown is "until further notice," but gave no estimate how long that means that the old bridge will be shut.
This closure is necessary to keep traffic off this bridge while material is ordered, and time is allotted for emergency repairs.
The bridge remains open to pedestrians.
The state says it will post detour signs to get motorists around the traditionally clogged Cleary Square, but did not say what those detours will be.