Green Line Extension Residents Speak Out: Construction Chaos Meets Climate Hope in Somerville

For nearly three years, Union Square in Somerville has resembled a construction zone more than a vibrant neighbourhood hub. The Green Line Extension project—a $2.3 billion undertaking designed to bring rapid transit to areas historically underserved by the T—has transformed the intersection of Somerville Avenue and Washington Street into a landscape of barriers, detours, and delayed deliveries. As the project nears completion this autumn, residents and business owners are finally speaking candidly about what the infrastructure investment has cost them in the interim.

"We've lost forty percent of our foot traffic," says one longtime Somerville Avenue business operator, reflecting sentiment shared across the neighbourhood's commercial corridor. Several retailers report average monthly revenue declines of between $8,000 and $15,000 during peak construction phases. The disruption has been particularly acute for independent shops and cafes—establishments already navigating post-pandemic economics—that lack the reserves of larger chains to weather extended lean periods.

Yet the frustration is tempered by cautious optimism about what comes next. Commuters currently dependent on the 89 and 91 bus lines—which service much of East Somerville and parts of Cambridge—anticipate meaningful changes to their daily routines. The extension will add seven stations across Somerville and Medford, potentially cutting transit times to Downtown Boston by fifteen to twenty minutes compared to existing bus routes.

Environmental advocates view the project as crucial infrastructure in Boston's climate commitments. The MBTA projects the extension will remove roughly 3,000 daily car trips from regional roads once fully operational—equivalent to taking approximately 600 cars entirely off commutes. For a region grappling with some of New England's worst air quality, the environmental case feels increasingly urgent.

Community groups have begun mobilising post-construction initiatives. The Somerville Community Corporation and local business associations are developing a "recovery period" marketing campaign, hoping to draw residents back to Union Square once Somerville Avenue reopens fully. Plans include extended hours at local establishments and coordinated promotional events.

The broader lesson appears resonant across Boston's infrastructure landscape: transformative public works demand genuine community sacrifice in the present for speculative benefit in the future. For Union Square residents counting down months until the jackhammers cease, the calculation feels increasingly personal.

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