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Eyes On the Street: Bikes, Pedestrians, and Buses Get More Space In Sullivan Square

MassDOT is wrapping up a multi-year bridge replacement project near Sullivan Square that has given transit riders, pedestrians, and bike commuters some significant improvements through the highway interchange that divides East Somerville from Sullivan Square.
A wide roadway shaded under a huge brown highway overpass under a blue sky. At left, several pedestrians walk along a new concrete sidewalk on the side of the road. In the center is a concrete curb that separates a bike lane from the motor vehicle lanes at right.
The new Maffa Way Bridge over the Orange Line near Sullivan Square includes a widened sidewalk to the subway station (at left) and a protected bike lane (center) from East Somerville. Photographed on April 8, 2026.

MassDOT is wrapping up a multi-year bridge replacement project near Sullivan Square that has given transit riders, pedestrians, and bike commuters some significant improvements through the highway interchange that divides East Somerville from Sullivan Square.

Pedestrians in winter coats walk along a trash-strewn sidewalk next to an extremely wide roadway under a dark freeway overpass.
Pedestrians walk along the sidewalk on Maffa Way, an off-ramp from I-93 and the primary walking route between the Sullivan Square Orange Line stop and East Somerville, in winter 2022.

MassDOT’s Maffa Way/Mystic Avenue Bridge Superstructure Replacements project has been under construction since spring 2024, demolishing and rebuilding two bridges northeast of Sullivan Square.

For thousands of Orange Line riders who live or work in East Somerville, the walk to and from the Sullivan station used involve a relatively narrow, poorly-lit sidewalk that was in distressingly close proximity to four lanes of traffic pouring off of Interstate 93 (see the photo at right from early 2022, before construction began).

The new Maffa Way bridge (pictured at the top of this article) has a significantly wider sidewalk, and it’s buffered from highway traffic by a 10-foot-wide, curb-protected bike path.

A block away to the north, the new Mystic Avenue bridge, which carries westbound traffic away from Sullivan Square, also sports a widened sidewalk that’s intended to be shared by people walking and on bikes. At the northern end of the bridge, the new sidewalk ties into an existing shared-use pathway that runs alongside Grand Union Boulevard to the Assembly Orange Line station and Draw Seven Park.

There’s also a ramp down into the bike lane for people riding bikes and scooters:

Several orange construction cones line a new asphalt ramp from the sidewalk to a bike lane in the adjacent roadway. On the right edge of the photo, a new concrete sidewalk connects to an older sidewalk segment in the middle distance. A high-rise office building is visible on the horizon.
New sidewalks and ramps connect the new Mystic Avenue shared-use path into the existing bike lane and shared-use path along Grand Union Blvd. in East Somerville. The path at right runs along the Orange Line tracks to connect to Assembly Station and the Mystic riverfront. Photographed on April 8, 2026.

On Lombardi Street, the improves connections between the Assembly district and the rest of East Somerville with new sidewalks and a protected two-way bike path under the Interstate 93 viaduct:

An intersection with several traffic lights and curbs. A median in the center of the photo divides a bike path (center right) from a three-lane roadway (left). In the distance a highway overpass flies over the bike path and the street.
A new protected two-way bike path on Lombardi Street in East Somerville connects Broadway (foreground) to Mystic Avenue and the Assembly district under the Interstate 93 overpass.

The two new bridges are also a busy connection for MBTA buses. Six bus routes – including the including the newly-redesigned 85 and the 101 to Medford, which would become a frequent-service route under the T’s bus network redesign plans – use Maffa Way on their way into Sullivan Square from East Somerville, then use the parallel Mystic Avenue bridge on their way back out.

The project’s contractors haven’t painted roadway markings yet, but MassDOT’s plans include dedicated bus lanes on both of the new bridges, and on Lombardi Street.

Next do Sullivan Square

The main drawback to all of these improvements is that they all connect to Sullivan Square, which remains one of the region’s most uniquely unpleasant places to travel, whether you’re in a car, on foot, or riding a bus.

For several years now, the City of Boston has been developing plans to reconfigure Sullivan Square in a new grid of streets with dedicated bus lanes and protected bike paths that connect to Charlestown and Everett.

But those plans have been under development for nearly two decades now. Because of that indecision, City Hall is at some risk of losing the federal funds that had been budgeted to build those improvements.

Photo of Christian MilNeil
Christian has edited StreetsblogMASS since its founding in spring 2019. Before that, he was a data reporter for the Portland Press Herald in Maine. Got tips? Send them to me via Signal, the encrypted messaging app, at 207-310-0728.

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