https://www.boston25news.com/news/mbta-green-line-extension-project-finally-underway/776827512/
MBTA Green Line extension project finally underway - Boston 25 News
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https://www.wbur.org/news/2012/12/11/green-line-extension-ground-breaking
Ground Broken On First Phase Of Green Line Extension | WBUR News
The state plans to begin work renovating bridges and underpasses that will be a part of a project bringing the trolley through Somerville to Medford.
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https://www.boston25news.com/news/massachusetts/mbta-officials-accept-1b-bid-for-green-line-extension/649259179/
MBTA officials accept $1B bid for Green Line extension - Boston 25 News
green line extension