Commonwealth Avenue Bridge July 27, 2018 10:06 am MBTA Officials Talk Construction on Comm. Ave. Bridge MBTA officials predict that Saturday and Monday following the first day of the Commonwealth Avenue Bridge’s construction will be the most hectic.no description US & World Videos 8:39 Gina Rodriguez gushes 0ver motherhood with son Charlie 2:22 Scarlett Johansson and Colin Jost have date night at White House Correspondents' dinner 2:09 President of MIT calls for shutting down pro-Palestinian encampments 3:57 Pleasant Sunday despite morning showers 1:00 Three dead in apparent murder-suicide in Lowell