Traffic and construction updates - Chelmsford- Lowell bridge bundle replacement

The Massachusetts Department of Transportation (MassDOT) is fully replacing two bridges over I-495 in Chelmsford starting in April 2025.

Status

General construction activities are underway at the Westford and Gorham Street bridges. A temporary traffic signal has been installed at the intersection of Carlisle Street, Boston Road and Manning Road to facilitate the Gorham Street detour.

Typical work hours are weekdays from 7 AM to 3 PM and require occasional lane closures. 

Weather and unexpected circumstances make all construction activities subject to change without notice, but we will do our best to keep you updated.

Westford Street Bridge demolition work

Bridge-deck demolition of the Westford Street Bridge is now complete. As part of the remaining demolition work, the project will require occasional overnight lane closures on I-495 for northbound and southbound traffic underneath the Westford Street Bridge.

Demolition work may have intermittent noise impacts for nearby residents.

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