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 Media coverage of Gov. Patrick’s attempted Green Line delay August 9, 2007 Analysis of Green Line tunnel options November 26, 2008 What’s next for the Green Line August 14, 2010