Somerville Patch coverage of massive Green Line delay Post published:August 1, 2011 Post category:Green Line “Green Line Extension Completion Pushed Back to 2018, 2020 at Latest” You Might Also Like Gov. Patrick signs transportation bond bill – with Green Line funding! April 17, 2008 Boston Globe: Orange & Green Line updates February 13, 2011 MBTA purchases new trains for Green Line Extension to Union Square February 20, 2017