The Maurice J. Tobin Memorial Bridge (formerly Mystic River Bridge or Mystic/Tobin Bridge) spans more than two miles from Boston to Chelsea over the Mystic River. It is operated by the Massachusetts Department of Transportation. and carries U.S. Route 1. The bridge carries US Route1 three lanes of traffic on two levels. Northbound traffic on the lower level and Southbound traffic on the upper level.
Massachusetts toll calculator calculates tolls and gas expenses for cars, trucks, trailers, buses, RVs, and motorcycles for Maurice J. Tobin Memorial Bridge for both the directions. The tolls are for both peaks and off-peaks, at the time of your travel.