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 Key construction firm selected for Green Line July 29, 2013 CLF and State settle lawsuit: Green Line extensions on track! November 29, 2006 Community Path extension should be tied to Green Line May 15, 2010