Engineering staff present three concepts for School Street crossing; MassDOT review expected

The Somerville Traffic & Parking Committee received a conceptual design briefing on options to make the School Street crossing of the community path safer.

A city engineering presenter described three concepts developed with a consultant team including bridge and complete-streets designers. The first concept is a fully raised crossing that brings the roadway to sidewalk level so pedestrians and cyclists cross on a continuous surface; staff said this gives the clearest, barrier-free crossing but flagged a potential MassDOT concern that adding “a few tons of asphalt” or concrete could create problematic loading on the bridge.

The second concept keeps roadway and bike lane at grade and uses extended bump-outs with accessible ramps to narrow crossing distances and slow motor-vehicle approach speeds; engineers said this might require sidewalk reconstruction on the bridge and could raise maintenance or plowing issues for the state. The third option concentrates a larger bump-out on the west side to minimize in-structure sidewalk work while still narrowing vehicle lanes for traffic calming.

Staff repeatedly cautioned the committee that designs are illustrative and early-stage; operations teams in DPW and the fire department must review constructability and emergency access before staff take concepts to MassDOT. “We want to make sure the city is talking in one voice,” the engineering presenter said, describing plans to coordinate internal reviews first and then schedule an open discussion with MassDOT staff across bridge, operations and complete-streets divisions.

Councilors questioned visibility for opposing cyclists, materials and long-term maintenance responsibilities. When asked about lighter-weight concrete, the presenter said such mixes exist but are generally less durable; because MassDOT retains long-term maintenance responsibility for bridges, the state may resist materials that could reduce structure lifespan.

Engineering staff also presented two concepts to improve crossings near Magoun Station on Lowell Street: a tightened crossing at Maxwell’s Green that would narrow pedestrian crossings across the intersection, and a raised crossing at the Vernon–Lowell location that would lie entirely on city right-of-way and therefore could proceed without state approval but requires drainage work because of slope.

After discussion, the committee kept both crossing items in committee for further coordination; staff said they will return with revised concepts after interdepartmental review and outreach to MassDOT.