How much did the extension of Green Line Extension cost?
The Green Line Extension is the 4.3-mile (about 7 km) extension of the Massachusetts Bay Transportation Authority's Green Line light rail northwest from Lechmere into Somerville and Medford near Boston, with a Union Square branch of 0.7 miles opened in 2022 and a Medford branch to Tufts University of 3 miles opened in December 2022, with five new accessible stations in the branches opened that year. Railfan and Railroad magazine reported on 16 December 2022 that the entire project cost 2.3 billion dollars, including 24 new trolleys.
Reported project cost
$2.3 billion
Cost basis: 2022
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Cost evidence
Basis of the published figure
Reported project cost2022
Project record
Opened or launched
Railfan & Railroad Magazine16 December 2022