▁MB TA ▁on ▁the ▁configuration ▁of ▁the ▁Green ▁Line ▁Ext ension ▁is ▁supported ▁and ▁has ▁been ▁rein for ced ▁by ▁multiple ▁regul atory ▁ag encies ▁over see ing ▁the ▁S IP , ▁including ▁Mass DE P ." ▁ ▁In ▁con cluding ▁these ▁comments , ▁the ▁MB TA ▁stated ▁that ▁it ▁would ▁not ▁respond ▁to ▁any ▁further ▁questions ▁regarding ▁College ▁Avenue ▁satisfying ▁the ▁Med ford ▁Hill side ▁requirements ▁of ▁the ▁S IP . ▁ ▁Const ruction ▁of ▁the ▁Route ▁ 1 6 ▁station ▁was ▁planned ▁from ▁Boston ▁M PO ▁funds ▁for ▁ 2 0 1 6 – 2 0 2 0 ▁after ▁the ▁rest ▁of ▁the ▁line ▁was ▁complete . ▁ ▁However , ▁after ▁the ▁cost ▁over run ▁this ▁fund ing ▁was ▁real located ▁to ▁the ▁main ▁project . ▁ ▁Route ▁ 1 6 ▁is ▁still ▁in ▁the ▁state ' s ▁plan , ▁with ▁environmental ▁review ▁proceed ing , ▁as ▁of ▁ 2 0 1 7 . ▁ ▁Le ch m ere ▁closure ▁During ▁construction , ▁the ▁northern ▁section ▁of ▁the ▁Le ch m ere ▁E lev ated ▁will ▁be ▁removed ▁and ▁the ▁elev ated ▁section ▁of ▁the ▁line ▁will ▁be ▁extended ▁to ▁a ▁large ▁fly over ▁bridge ▁crossing ▁the ▁F itch burg ▁Line ▁tracks . ▁The ▁ 1 9 2 2 - built ▁Le ch m ere ▁station ▁will ▁be ▁replaced ▁with ▁an ▁elev ated ▁station ▁across ▁the ▁street . ▁The ▁work ▁was ▁expected ▁to ▁require ▁closing ▁the ▁vi ad uct ▁( and ▁thus ▁cutting ▁service ▁back ▁to ▁North ▁Station ) ▁for ▁