This time-lapse video from the Massachusetts Department of Transportation shows the stages of the construction project at the Fore River Bridge. The following is the description from the DOT's You Tube page:
"The Fore River Bridge Replacement is a signature project of the Patrick-Murray Administration's Accelerated Bridge Program. A new vertical lift bridge will carry Route 3A between Quincy and Weymouth. Construction is underway in 2013, with the design-build phases shown in this animated video with music.''