Category:Green Line Extension (MBTA)

**Green Line Extension**
	2022 light rail line extension in Somerville, Medford, and Cambridge, Massachusetts
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Instance of	railway line; extension of a metro line;
Part of	Boston subway system; Green Line;
Location	Cambridge, Middlesex County, Massachusetts
Owned by	Massachusetts Bay Transportation Authority;
Operator	Massachusetts Bay Transportation Authority;
Date of official opening	21 March 2022 (Union Square Branch); 12 December 2022 (Medford Branch);
Length	4.3 mi;
Terminus	Union Square station; Medford/Tufts station;
Cost	2,280,000,000 United States dollar;
Authority file
	Q5602828;
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Subcategories

This category has the following 5 subcategories, out of 5 total.

The following 2 files are in this category, out of 2 total.