Construction activities are in progress. Weather and unexpected circumstances make all construction activities subject to change without notice, but we will do our best to keep you updated.
Occasional Overnight Demolition Work, March 3 – March 6
MassDOT’s contractor will perform occasional overnight bridge demolition work as follows:
- From Monday, March 3, through Thursday, March 6, beginning at 11:00 PM each night through 4:00 AM the following morning, in the vicinity of Maffa Way near Sullivan Square Station
Typically, construction work occurs during daytime hours of 7:00 AM – 3:00 PM except for 24/hour work during pre-planned MBTA shutdowns described below.
Phase II Traffic and Construction (January 2025 – Winter 2025/2026)
Phase II of the project began in January 2025 and includes the replacement of the south side of the Maffa Way Bridge and the north side of the Mystic Avenue Bridge. MassDOT implemented traffic shifts on both the Maffa Way Bridge and the Mystic Avenue Bridge in January 2025 to accommodate Phase II construction.
On Mystic Avenue, two lanes of traffic are shifted to the newly constructed south side of the bridge. On Maffa Way, two lanes of traffic are shifted onto the newly constructed north side of the bridge. One lane from Broadway in Somerville and one lane from the I-93 ramp will be maintained. Pedestrian access will be maintained across the bridge.
On the Maffa Way Bridge, vehicular travel is reduced to two lanes and the south side of the bridge is closed for construction.
On the Mystic Avenue Bridge, vehicular travel is reduced to two lanes and the north side of the bridge is closed for construction.
Vehicular and Pedestrian Detours for Phase II
In order to establish the work zones for Phase II, the following local detours were implemented in January 2025 and anticipated to remain in place through January 2026. Appropriate signage and messaging will be in place to guide drivers through the work areas.
View the detour maps in English, Spanish, Portuguese, and 简体中文.
Brighton Street at Broadway Closure Detour (see detour map):
- Vehicles traveling from Caldwell Street to Maffa Way should turn right on Brighton Street, right on Perkins Street, left on Parker Street, and left on Cambridge Street.
- Vehicles traveling from Broadway to Brighton Street should turn onto Mount Pleasant Street, then turn left onto Perkins Street.
- Pedestrians will be directed to use Caldwell Street, Perkins Street, and Mount Pleasant Street (see pedestrian detour map).
Sherman Street at Mystic Avenue Closure Detour (see detour map):
- Vehicles traveling from Mystic Ave to Sherman St. will be directed to turn right on Dorrance St. and left on Arlington Ave.
- Vehicles traveling from Sherman St. to Mystic Ave will be directed to head north on Sherman St., turn right on Arlington Ave, and turn right on Dorrance St.
Weekend Shuttles Replace MBTA Orange Line and Commuter Rail Line (Haverhill and Newbury/Rockport)
Shuttle buses will replace MBTA Orange Line service between Oak Grove and North Station over the following weekends:
- From 8:30 PM on Friday, January 17 through Monday, January 20.
- From 8:30 PM on Friday, January 31 through Sunday, February 2.
- From 8:30 PM on Friday, February 14 through Monday, February 17.
- From 8:30 PM on Friday, March 7 through Sunday, March 9.
For the latest information and updates on the Orange Line shuttle service that will be available, please visit MBTA Orange Line alerts page.
Shuttle buses will replace MBTA Commuter Rail service on the Haverhill and Newbury/Rockport lines over the following weekends all day Saturday and Sunday:
- January 18-19
- February 1-2
- February 15-16
- March 8-9
For the latest information and updates, please visit the Haverhill Line alerts page and the Newbury/Rockport Line alerts page.
MBTA Orange Line Shutdown, May 10-18
Shuttle buses will replace MBTA Orange Line service between Oak Grove and North Station for nine days beginning 8:30 PM on Friday, May 9, through Sunday, May 18.
For the latest information and updates on the Orange Line shuttle service that will be available, please visit MBTA Orange Line alerts page.
What you can expect
Abutters, motorists, cyclists, and walking pedestrians should expect to see more construction activities in the area and should consider adding additional time for their commutes.
During these activities, crews will be working during standard construction hours, 7:00 AM – 3:00 PM Monday – Friday, except during certain periods coinciding with the temporary shutdown of MBTA train and rail services in the area.
Contact for Traffic and construction updates - Maffa Way/Mystic Ave. Bridge project
Online
Phone
The project telephone hotline will be staffed Monday – Friday between the hours of 7:00 AM and 4:00 PM. Calls received outside of these hours will be returned during the next business day.