Two of the three design-build teams shortlisted to build the long-awaited Massachusetts Bay Transportation Authority’s Green Line Extension project have certified that their proposals will meet or be below the MBTA’s $1.3 billion cost limit.
With the public pricing opening scheduled for Nov. 17, MBTA officials declined to disclose which of the three joint ventures (GLX Constructors, Green Line Partners and Walsh Barletta Granite) could not meet the Oct. 23 deadline to guarantee costs.