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GLX construction activities and traffic updates

June 5 – June 25, 2021 - construction outlook and upcoming plans. Work schedule is subject to change based on weather or other factors.

Table of Contents

School Street Pedestrian / Bike Detour Routes

School Street Bridge Pedestrian Bridge will be closed January 18 through spring of 2021.

For Ped / Bike Traffic headed east:

  • School St. to LEFT on Madison
  • RIGHT on Sycamore St. to
  • Right on Richdale Ave to
  • LEFT on School St.

For Ped / Bike Traffic headed west:

  • School St. to RIGHT on Richdale Ave
  • LEFT on Sycamore St.
  • LEFT on Madison St.
  • RIGHT on School St.

Additional Resources

Union Square Station

Overview of work in the area: Inbound and outbound track between Unions Square Station and Lechmere Station has been install and is awaiting final leveling/adjustments. Catenary pole installation along this same stretch is virtually complete and power and communication cables are being raised into place. Station work is in its final stages and support facility construction is well underway not far from the Prospect St. bridge. The steel canopy on the station platform is also complete, offering a highly a visual sign of progress.

Work Schedule: Monday – Friday, with frequent weekends.

Work Planned for the next few weeks: Work continues on and around the Union Square Station platform and support structures. This includes systems, communications, power, and electrical work needed to support the station.

Night Work: No night work is anticipated at this time.

Lechmere Station

Overview of current work in the area: Work continues to advance on the Lechmere Station platform at a rapid pace. Inbound and outbound tracks have been connected to the East Cambridge Viaduct and extend uninterrupted to Union Square. Final leveling and adjustment of the tracks will continue in the coming months. The station platform has received its final surface coat of concrete and the erection of steel girders for the station canopy, stair towers and elevator towers is complete. Glass artwork is being installed in the elevator towers and the next visual step will be the installation of steel roofing on the canopy and stair towers. Temporary bus service continues to and from North Station in place of trolley service while construction is underway.

Work Schedule: Monday – Friday, with occasional nights and frequent weekends.

Work Planned for the next few weeks: With most of the structural work complete, a significant amount of work continues on the Lechmere Station platform, headhouses and central instrument house. This includes finishing platform canopy roof installation, working on elevators at the head houses and all of the electrical and wiring work that supports the station and train safety systems.

Near the Boston Engine Terminal area and Brickbottom Condominiums, multiple construction operations continue at both ground and viaduct levels. This work includes placing remaining sections of noise wall panels, placing track leading to the Vehicle Maintenance Facility (VMF), and wiring up the Central Instrument Houses in the area which will run the signals and communication network. Work on drainage, system wiring, and Community Path viaduct construction is also progressing.

Expect periodic use of vibrating rolling equipment on the ground level and ramps to compact soil and aggregate prior to track placement. Vibration from this equipment can be felt at distances but is within carefully measured and conservative geotechnical thresholds.

Night Work: Night work is likely in this area as station work progresses.

Lechmere Viaduct and Charles River Dam Road

Green Line service between Lechmere and North Stations was suspended in May of 2020 to remove, rebuild, and relocate a section of viaduct and construct a new Lechmere Station. Replacement bus service is being provided for the duration of the service interruption.

See the Lechmere Viaduct and Charles River Dam Road page for more details.

Vehicle Maintenance Facility (3rd Ave)

Overview of current work in the area: Construction is advancing on the future Green Line Vehicle Maintenance Facility (“VMF”) which serves as the main location for trolley car maintenance and service. The superstructure of the massive building is virtually complete and weather-tight doors have been installed. The focus continues on the outfitting the interior of the building which is in its final stages. The installation of access and storage track within 8-acre VMF yard is complete and the focus is now on installing power and communication cables on the catenary poles which are now in place. Work is actively underway to have this building tested, commissioned, and ready to service trains in the coming months.

Work Schedule: Monday - Friday, 7 a.m. to 5 p.m. and most nights and weekends in this period.

Work Planned for the next few weeks: We now have a permanent power connection to the VMF area which is a big milestone for the project. Track-leveling and related finishing work continues around the footprint of the facility. Expect to see DC power lines attached to the overhead contact system poles in the area soon. Inside the VMF building, the work of outfitting the building with equipment to service Green Line trains continues. Inside and around the Transportation Building systems work continues and the building is in its final stage of construction.

Night work: None planned during this period.

East Somerville Station (Fitchburg St. to Walnut St.)

Work Schedule: At the street level, work is focused on completing the south sidewalk at Washington St. At the site of the future station, work is advancing on the platform. Heading north along the GLX alignment toward Walnut St, track, systems, and wall construction work continues.

Work Planned for the next few weeks: With the steel canopy roof in place on the station platform, the more detailed work involved with outfitting the station continues. Catenary poles have been installed and work focuses on sub-grading the railbed and preparing for track placement during this period. Signal and communications work also continues at the station and across this sector.

Along Washington St. at the underpass, work on the south sidewalk progressed noticeably during the last period. Expect the sidewalk to be poured with surface street restoration to follow. We expect this area to fully open up to pedestrian and vehicle traffic by the end of the month.

North of Washington St., retaining wall construction remains active up to Walnut St. On top of and behind these walls is where the Community Path is being built. Also, expect to see more track-bed preparation and rail placement during this period.

Night Work: Night work is likely at track level between Medford St. and Cross St.

Please note that a construction train used for excavation and hauling of materials will be active throughout the nights and weekend. This heavy piece of equipment, which is regulated by the Federal Railroad Administration, is required to use its horn for safety purposes whenever it stops and starts.

Gilman Square Station (Walnut St. to Central St.)

Overview of current work in the area: Currently, work continues to advance on modifications to the School St. and Medford St. bridges, building a Traction Power Substation, building of a new retaining wall on the high school side of the tracks, and construction of a new Green Line station. The Station platform and steel roof on the station canopy are in the final detail stage.

Work Schedule: Monday - Friday, 7 a.m. to 5 p.m., most weekends and frequent nights during this period.

Work Planned for the next few weeks: Work continues on and around the Gilman Square Station platform and the Medford St. and School St. bridges. Both bridges are expected to reopen this summer.

At track level, systems installation will continue throughout this segment of the job.

Night work: Work at track level is likely along this part of the project. Also, retaining wall and noise wall panel installation may occur depending on panel availability and ability to get track time.

Please note that a construction train used for excavation and hauling of materials will be active throughout the nights and weekend. This heavy piece of equipment, which is regulated by the Federal Railroad Administration, is required to use its horn for safety purposes whenever it stops and starts.

Magoun Square Station (Central to Cedar)

Overview of work in the area: The station platform, elevator shaft and structural steelwork for the stair tower and platform canopies are in place. Work on the west side of the alignment is advancing well with the installation of retaining walls, drainage, and station construction. In this segment, project neighbors are seeing the Magoun Square Station take shape near Lowell Street. On the opposite side of the alignment, expect to see the last of retaining and noise wall panels being inserted where steel H-piles are already in place.

Work Schedule: Monday - Friday, 7 a.m. to 5 p.m., most weekends and frequent nights this period.

Work Planned for the next few weeks: Work will continue to advance at and around the Magoun Square Station. A lot of electrical and other detail work is underway. Preparations for track placement continue in areas across this segment where there are gaps in the track.

Retaining wall work also continues throughout this section.

Night Work: Yes. Night work is scheduled intermittently in the area for work associated with a broad range of tasks including the sub-grading of railbed, excavation, placement of noise wall panels, and work at the station.

Please note that a construction train used for excavation and hauling of materials will be active throughout the nights and weekend. This heavy piece of equipment, which is regulated by the Federal Railroad Administration, is required to use its horn for safety purposes whenever it stops and starts.

Ball Square Station (Cedar St. to Harvard St.)

Overview of work in the area: At Ball Square, work on the future Green Line Station is very visible as is work on the nearby traction power substation. A few punchlist items are being addressed to finalize completion of the Broadway Bridge. Other work in the area includes:

  • Retaining wall construction between Cedar and Broadway
  • Completion of a small section of noise wall construction north of Broadway and connecting it to an existing wall at Granville Ave.
  • Installation of new rail signaling equipment
  • Track bed construction and light rail placement

Work Schedule: Monday – Sunday, 7 a.m. to 5 p.m. and frequent nights.

Work Planned for the next few weeks: The steel superstructure for the station platform and roof panels are now in place as work connecting the station infrastructure continues. Light-rail systems installation is active in the area as is drainage and utility work and outfitting the traction power substation.

Expect work building the retaining wall, track prep and placement between Cedar St. and Broadway to continue.

Night Work: Night work is expected during this period for a broad range of construction tasks including trackwork, wall, and utilities.

During this work, contractors will make efforts to minimize noise, however, noise levels may be disruptive at times. Efforts will be made to minimize light spillage into residential areas.

Please note that a construction train used for excavation and hauling of materials will be active throughout the nights and weekend. This heavy piece of equipment, which is regulated by the Federal Railroad Administration, is required to use its horn for safety purposes whenever it stops and starts.

Medford/Tufts Station (Harvard St. to Winthrop St.)

Overview of work in the area: With the commuter rail track moved to its final position on the east side of the corridor, work is now focused on the west side walls and station.

Work Schedule: Monday - Friday, 7 a.m. to 5 p.m. and frequent weekends and nights

Work Planned for the next few weeks: Crews will continue to work on the station platform in preparation for pouring the concrete deck. Recently two elevator shafts were lifted into place at the head house. Work on these elevators continues as does work at the pedestrian bridge and emergency egress ramp.

Night Work: Yes. Sewer line work on Boston Ave adjacent to Medford/Tufts Station is expected to resume in the next few weeks. When it does restart, the work is scheduled between 8:00 PM and 4:00 AM to minimize traffic impacts. Elevated noise levels are expected at times. Night work inside the MBTA right-of-way is also possible during this period.

Please note that a construction train used for excavation and hauling of materials will be active throughout the nights and weekend. This heavy piece of equipment, which is regulated by the Federal Railroad Administration, is required to use its horn for safety purposes whenever it stops and starts.

Contact

Phone

Construction Hotline (855) 459-4636

24/7 Coverage

Online

Green Line Extension inquiries info@glxinfo.com

Address

200 Inner Belt Road
Somerville, MA 02143
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