The full Green Line Extension is open! Post published:December 12, 2022 Post category:Green Line Hundreds rode the first trains, music was played, mayors (current and former) danced, speeches were given, and Somerville became an even better place to live on this fine December day! Keep reading for more photos from Karen Molloy. You Might Also Like State releases analysis of Green Line support facility November 6, 2008 City presents plan for Inner Belt that includes stadium December 18, 2008 Gov. Patrick files transportation bond bill, including Green Line Extension March 13, 2013