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GLX construction activities and traffic updates

Construction Outlook (September 4 to October 1, 2021). Work schedule is subject to change based on weather or other factors.

Table of Contents

Union Square Station

Overview of work in the area: Union Square Station is in its final stage of construction as are the light-rail systems, overhead catenary, and signal and electrical systems which serve the station.

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: Yes. Systems or wall work is likely closer to McGrath Hwy.

Lechmere Station

Overview of current work in the area: Work continues on the Lechmere Station platform and on structures beneath and leading up to the platform. As some phases of construction wrap up, construction equipment and support material are being removed and the area appears close to its final configuration. At the Red Bridge Traction Power Substation (one of three on the project), work continues on outfitting and testing the equipment in this building which converts AC power to DC to run the trolleys.

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: Work continues on the Lechmere Station platform, headhouses and central instrument house. This includes working on the platform, elevators at the head houses, and all of the electrical and wiring work that supports the station and train safety systems.

Above the Boston Engine Terminal tracks near Brickbottom Condominiums, multiple construction operations continue at both ground and viaduct levels. This work includes placing remaining sections of noise wall panels at night, running systems cable, and wiring up the elevated central instrument house where the two branches split. Expect more drainage, system wiring, and Community Path viaduct construction.

Expect periodic use of vibrating rolling equipment on the ground level to compact soil and aggregate prior to track placement or paving the Community Path. 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 and systems cable is connected to the Overhead Contact System poles.  Systems work will stretch across all portions of the elevated viaduct and is happening 24/7. 

Lechmere Viaduct and Charles River Dam Road

Green Line service between Lechmere and North Stations was suspended last year 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.

Vehicle Maintenance Facility (3rd Ave)

Overview of current work in the area: The Green Line Vehicle Maintenance Facility (“VMF”), which serves as the primary location for trolley car service and maintenance in the area, has been turned over to the MBTA by the Design-Build Contractor, GLXC.  With 3 Green Line trolley vehicles now inside the building, the MBTA will complete the final testing phase of the building and railyard while bringing these facilities to operational readiness. GLXC will continue to work closely with the MBTA to finish minor punch list items at the VMF while completing the nearby GLX Transportation Office Building which will soon be transferred to the MBTA in similar fashion.

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: Some construction will continue inside the VMF and Transportation Building as MBTA mobilizes and prepares staff that will be working in these facilities.

Night work: none planned

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

Overview of current work in the area: 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, Community Path and wall construction work continues. On the ground level, some track work remains between the East Somerville Station and Vehicle Maintenance Facility.

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

Work Planned for the next few weeks:

Wiring and outfitting the East Somerville Station continues. Construction of the bike rack and artwork foundation are underway. Community Path construction, drainage, systems installation, and track work will all be active this period.

At the Washington St. Underpass, painting of the steel girders and punch list items are finishing up. When these items are complete, the south sidewalk will open up to pedestrian traffic. Work continues next door on a robust stormwater pumping station currently under construction and situated below grade between Oliveira’s Restaurant and the bridge. When complete, this stormwater pumping system is expected to improve the historic flooding situation under the bridge.  The system will collect runoff from new storm drains beneath the roadway underpass and pump it through a new outfall system which eventually flows into the Millers River.

Night Work: Night work is likely at track level between Medford St. and Cross St. either associated with systems installation or remaining noise wall panel placement.

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: Work continues at the School St. and Medford St. bridges, building the Pearl St. Traction Power Substation, and construction of a new Green Line station. The Community Path is also shaping up along this section of the rail corridor. 

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 headhouses. A considerable amount of electrical and steel work is underway.

Crews are advancing the remaining work needed to get both the Medford and School St. bridges open to traffic. This includes work on duct banks, sidewalks, and approaches to both bridges. These bridges are expected to open up later this year.

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

On the hillside expect more Community Path work in this segment along with tie in work at neighboring fence lines.    

Night work: Yes. Night work at track level is likely along this part of the project to support fence installation between the commuter rail and light rail lines.  Rock must be hammered out of the way to allow fence posts to be set in the area between School St. and north of Central St.  Retaining wall and noise wall panel installation will continue sporadically 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, pedestrian bridge, 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 entrance from the Lowell Street Bridge take shape. 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: Magoun Square Station construction is active at both platform and at the Lowell Street Bridge level. On the platform, electricians are wiring up the various electrical needs of the station. Masons are finishing up block structures at the track and walkway levels of the station.  Rebar placement is essentially complete on the pedestrian access point from the Lowell St. bridge.  Expect to see this walkway poured with concrete during this period.

Track and systems work will continue throughout this segment. Crews are placing a conduit trough and will be installing barrier and fence that separates the commuter rail from the light rail tracks.

Community Path construction will continue throughout this segment. 

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, the final appearance of the future Green Line Station platform, canopy, and pedestrian access points are highly visible. Green Line systems installation is underway as is track placement, utility work, and remaining noise wall panel installation. Completion of the Traction Power Substation is also a major component of the work happening at the station.

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

Work Planned for the next few weeks: Electrical work continues at the platform level as crews advance construction on the pedestrian access from Broadway, the elevator shaft, and stairs leading down to platform level. Electrical work continues inside the Traction Power Substation. A good portion of this lot will be paved during this period.  Also expect more work on the bike storage facility.

Night Work: Night work is expected again during this period as wall crews continue placing noise panels on the noise wall across from the Ball Square Station.

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: The Medford/Tufts station platform has been poured and structural steel for the canopy, elevator shaft, headhouse, and pedestrian bridge are all in place.

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

Work Planned for the next few weeks: Construction on the Medford/Tufts station platform is progressing as workers frame up the building and continue installing roof panels. Work on the elevator shafts, pedestrian bridge, staircase, and emergency egress ramps also continues.

Night Work: None planned at this time.

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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