Traffic and construction updates - Tobin Bridge/Chelsea Curves Rehabilitation Project

Traffic advisories and construction information. Work began on Monday, April 1, 2019 and requires significant traffic impacts including 24/7 lane closures.

Table of Contents

Construction Look-Ahead: October 6 – October 19, 2019

This is a brief overview of construction operations and traffic impacts for the Tobin Bridge/Chelsea Curves Rehabilitation Project. MassDOT will provide additional notices as needed for high-impact work, temporary ramp and street closures, and changes to traffic configurations beyond those described below.

Work Hours

Most work will occur in during daytime working hours (6 a.m.–2 p.m.) on weekdays. Some work will take place during afternoon (2 p.m.-7 p.m) and overnight hours (7 p.m.–6 a.m.) and on Saturdays (7 a.m.–7 p.m).

Route 1 Lane Capacity - Traffic Impacts

2 lanes open between 5 a.m. and 10 p. m.  1 to 2 lanes open between 10 pm. and 5 a.m.


  • Route 1 Northbound: Approaching the Tobin Bridge from Boston, the workzone begins in the left lane and continues in the center lane. Local traffic headed to Chelsea must be in the right lane to access the Beacon Street off-ramp. After Beacon Street, the next opportunity to exit Route 1 Northbound will be at Webster Avenue. 2 of 3 travel lanes will be open during daytime hours (5 a.m.–10 p.m.) and at least 1 travel lane will be open during overnight hours (10 p.m.–5 a.m.).
  • Route 1 Southbound: Approaching the Chelsea Curves from the North Shore, the workzone begins in the right lane at the Carter Street off-ramp. Just beyond the Carter Street on-ramp, the travel lanes shift to the right. 2 of 3 travel lanes will be open during daytime hours (5 a.m. –10 p.m.) and at least 1 travel lane will be open during overnight hours (10 p.m.–5 a.m.).

Route 1 Lane Shifts on Friday, October 18 and Saturday, October 19, 2019

During the overnight hours on Friday, October 18 and Saturday, October 19, lane closures and roadway configuration on Route 1 Northbound and Southbound in Chelsea will shift to a new stage.

Beginning Friday night, October 18, Northbound travel lanes will shift to the right after the Fourth Street off-ramp through the Chelsea Curves. Beginning Saturday night, October 19, Southbound travel lanes will shift to the left after the Carter Street off-ramp. Overnight work will begin one hour after the completion of an event at TD Garden scheduled for 6 p.m. on October 18.

The new roadway configuration allows necessary bridge deck repairs and safety improvements on the inbound side of Route 1 through the Chelsea Curves and will be in place for approximately 1-2 months. 2 travel lanes will continue to be open in each direction during daytime hours (5 a.m.–10 p.m.) and at least 1 travel lane will be open during overnight hours (10 p.m.–5 a.m.).

Fourth Street Off-ramp Temporary Closure

As of July 15, the Fourth Street Off-ramp is closed for 2-3 months for steel repairs, structural rehabilitation, safety improvements, and installation of permanent crash barriers on both sides of the ramp.

Fourth Street Detour

Spruce Street Workzone Lane Reconfiguration

Spruce St. will be reconfigured for approximately 2-3 months and reduced by one turn lane from Beech St. to Sixth St. in the eastbound direction only. A concrete barrier will be installed to separate vehicular traffic and the work zone during the temporary configuration.

The temporary reconfiguration of Spruce Street will have no impacts to Route 1.

Carter Street Workzone

Carter Street travel lanes will continue to be diverted around the active workzone on the eastbound side. Traffic will remain two-way and police details will be used to guide travelers.

On-going and Scheduled Work

  • Route 1 Northbound: Bridge repairs including power washing, deck forming, concrete pours, and joint repairs. Steel repairs continue on the Beacon Street off-ramp. Bridge deck removal and repairs and installation of new bridge deck will continue on the right side of the workzone through the Chelsea Curves.
  • Route 1 Southbound: Steel repairs and painting of new deflector plates continue.
  • Underneath Route 1: Replace and paint steel; continue installation of dust containment systems; power wash and paint columns and support beams; excavate, drill, and grout around support columns; erect steel beams; and place new concrete columns.

Work Completed over the last 2 weeks

In the two weeks prior to October 6, crews continued work on the bridge deck, repaired and erected steel, waterproofed bridge deck, installed dust containment systems, power washed and excavated support column footings, and placed concrete columns.

Travel Tips

Drivers should take care to pay attention to all signage 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 contractors are coordinating with local event organizers and police to provide awareness and manage traffic during events. For your awareness, the following events are scheduled during this look-ahead period:

  • Red Sox (Fenway Park): 10/12 at 7 p.m., 10/14 at 1 p.m.
  • Bruins (TD Garden): 10/6 at 6 p.m., 10/13 at 3 p.m.
  • Concerts (TD Garden): 10/8 at 8 p.m., 10/9 at 8 p.m., 10/10 at 7 p.m., 10/11 at 8 p.m., 10/15 at 7:30 p.m., 10/17 at 7 p.m., 10/18 at 7 p.m.

The North Washington Street Bridge Replacement is also underway which requires local traffic impacts.



Donny Dailey, Government & Public Affairs Liaison, MassDOT Government & Community Affairs (617) 945-4272
Construction Hotline 855-201-2614


10 Park Plaza
Boston, MA 02116