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Traffic and construction updates - North Washington Street Bridge Project

Overview of construction operations and impacts for the North Washington Street Bridge Replacement Project.

Table of Contents

Marine Impacts

The existing swing span steel of the existing bridge has been completely removed and the navigation channel beneath the North Washington Street Bridge is now open to all marine traffic. No additional long term closures of the channel are anticipated for the duration of the project.

Boaters should continue to exercise caution while transiting the channel and pay close attention to signage, lighting, and work vessels. As stated in the United States Coast Guard’s Local Notice to Mariners, boats transiting the bridge should monitor VHF channel 13 which allows communication and coordination with construction vessels.

Description of Scheduled Work

  • Building the piers:
    • Pier 1 (closest to the North End): Pre-assembling Hammer Head V-Pier, column formwork striping, and V-arm formwork installation at Columns 3 and 4
    • Pier 2: Begin V-arms formwork
    • Pier 3: V-arms formwork, rebar installation, and concrete placements
    • Pier 4: Installing precast beams
    • Pier 5 (closest to Charlestown): V-arms and strip formwork, installing precast beams
  • Installing, moving, and maintaining silt curtains in the water
  • Installing permanent fender piles

Work Hours

  • Most work will be done during the daytime (6:00 a.m. – 6:00 p.m.)

Work That Has Been Completed

  • Prior to 6/12:
    • Pier 1 (closest to the North End): Column rebar installation and concrete placement
    • Pier 5: Concrete placements
    • Pavement line striping to expand median at City Square Intersection

Project Newsletter Posted

  • Work on the North Washington Street Bridge began in August 2018. Since then, the project team has accomplished a lot. As of February 2020, we have transferred all utilities (gas, electric, fiber, communications) onto the temporary utility bridge, demolished the old bridge's center swing span and piers, and have started to build the foundations of the new bridge.
  • A project progress newsletter has been posted to the project webpage detailing the above accomplishments and many more. You can click this link to view the newsletter.

Travel Tips


On Thursday, 6/ 17 from 7 a.m. to 5 p.m., the Department of Conservation and Recreation (DCR) will implement a closure of the New Charles River Dam Pedestrian Walkway in the City of Boston to accommodate facility inspection work. Pedestrian patterns will be clearly marked, and pedestrians are encouraged to seek an alternate route such as the North Washington Street Bridge.  This operation is related to DCR’s maintenance of the dam and is not part of the North Washington Street Bridge replacement project.


The westerly sidewalk, Lovejoy Wharf stairs near Converse, are open to the public. With the opening of the temporary bridge, the adjacent section of the Harborwalk passing under the bridge remains closed. Please be advised that the DCR-controlled Charlestown locks can provide another alternate route, but may close without warning and beyond control of this project. During Tudor Wharf walkway (under the bridge next to the water in Paul Revere Park) closures, pedestrian access will be provided via the Water Street underpass and guidance signage will be provided.

All users should take care to pay attention to all signage and police details and move carefully through the work zone. Police details, lane markings, temporary barriers, traffic cones, signage, and other tools will be used to control traffic and create safe work zones.

The contractor is coordinating with the TD Garden and local police to provide awareness and manage traffic impacts during events. For your awareness, during this look-ahead period, there will be no events at the TD Garden during this look ahead period.

MassDOT is also working on the Tobin Bridge/Chelsea Curves Rehabilitation Project, which requires significant traffic impacts including 24/7 lane reductions. For more information or to sign up for project-specific construction look-aheads like this one, visit the project website.



Donny Dailey, MassDOT Legislative Liaison (617) 945-4272


10 Park Plaza
Boston , MA 02110