Details on Green Line retaining walls and noise barriers Post published:May 30, 2012 Post category:Green Line MassDOT has posted its presentation on retaining walls and noise barriers, from the May 22 public hearing. You Might Also Like Somerville Journal: Green Line announcement May 19, 2005 Boston Globe: Green Line Extension progress May 22, 2013 Board funds project to reestimate and redesign Green Line Extension January 27, 2016
