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GLX construction activities and traffic updates

Jan. 9 - 29, 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: Station and support facility construction is well underway not far from the Prospect St. bridge. The steel frame now in place for the station platform awnings is highly visible at this stage. Between this area and where the track runs under McGrath Hwy., the GLX project has been building retaining walls along the track to support the new light rail track.

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 canopy installation, track work, systems installation and placement of noise wall panels.

Nearby our work on the Union Square Station, US2 will begin development work on their properties. Expect increased construction activity at the open lot on the corner of Somerville Ave. and Prospect St.

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

Lechmere Station

Overview of current work in the area: Work continues on building a new, elevated Lechmere Station on the north side of Monsignor O'Brien Highway. Demolition of the old viaduct was completed on June 21 and work is now focused on the continued construction of a new viaduct from the Gilmore Bridge to the new Lechmere Station. Trolley service to the Lechmere Station stopped on May 24 and was replaced by bus service to and from North Station.

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

Work Planned for the next few weeks: The pouring of concrete parapets will be completed during this period as work progresses on the station platform and north and south headhouses. Track installation will begin from Charlestown Ave working north during this period. Construction of the Red Bridge Traction Power Substation is near completion.

In the construction zone near Brickbottom Condominiums, work preparing portions of the viaduct for track placement, which includes waterproofing and laying down a thick membrane in advance of ballast placement, will continue. Deck work will continue on the elevated part of the Community Path as will work on walls, drainage, and system installation.

Night Work: None planned at this time.

Lechmere Viaduct and Charles River Dam Road

Green Line service between Lechmere and North Stations was suspended for approximately 1 year on May 24, 2020, to remove, rebuild, and relocate a section of viaduct and construct a new Lechmere Station. Replacement bus service is being provided for this duration.

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 rapidly advancing for the buildings that make up the future Green Line Vehicle Maintenance Facility (“VMF”). A retaining wall is in the final stages that encompasses the entire area footprint. Installation of new drainage and the retaining walls are near completion and the buildings are taking shape with roof panels now being installed on the main structure. The assembly of the track interlockings is presently underway within the future rail vehicle storage yard.

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: With the Vehicle Maintenance Facility sealed up for the winter, the work of outfitting the building with equipment to service Green Line trains continues. At the nearby Transportation Building, the construction team has turned the facility over to Systems personnel so they can finish setting up equipment that supports train operations in the area. While work continues inside both of these buildings, track crews continue placing the remaining track segments that will take vehicles into and out of this 6.5-acre complex.

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 final surface restoration of the roadway and sidewalks at the Washington Street underpass. Overhead, abutments and decking on the second half of the Washington St. rail overpass are underway.

Work Planned for the next few weeks: Work will continue on the East Somerville Station platform and utility building. Wall, drainage and track work continue throughout the general area.

Below the Washington St. rail overpass, work is advancing on the south abutment. The sidewalk is currently closed on the south side for this activity.

North of Washington St. along the rail corridor, retaining wall construction remains active up to Walnut St. Part of this work near Cross St. includes building the Community Path access from bridge level. This work has visually come together in the past few weeks and will become even easier to visualize by the end of this period.

Night Work: Yes. Installation of noise wall panels and track barrier will occur 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.

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

Overview of current work in the area: Currently, work consists of modification to the School St. and Medford St. Bridges, building a Traction Power Substation near the Medford St. Bridge, building of a new retaining wall on the high school side of the tracks, and foundation work for the future station.

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: Construction of the Gilman Station platform and head houses will advance during this period as will work inside the nearby traction power substation.

At the Medford St. and School St. Bridges, all of the pier strengthening and abutment work is close to coming to an end. The next part of extending these bridges will be placing steel across openings. This work will start in the next few months. Up on the Montrose side of School St., an old duct bank carrying various utilities is not functioning and needs to be replaced. During the first week of January crews closed off Montrose St. at School St. to dig up this duct bank. Work will progress up to Madison St. with daytime closures here as well. Once a temporary line is placed, crews will be going back through and put in the permanent structure.

Retaining wall construction between School St. and Central St. has advanced with a majority of the concrete panels in place. Backfilling the space between the walls and Montrose St. backyards is expected to start during this period. On the opposite side of the alignment, gaps in the sound walls along the east side of the alignment continue to be filled in as panels arrive.

At track level, some final drainage and systems work is underway as the area is being made ready for track placement in the near future.

Night work: Yes. Soil excavation and wall panel placement are likely.

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: Work on the west side of the alignment is accelerating with the installation of retaining walls, drainage, and station construction. In this segment, project neighbors will start to see the Magoun Square Station take shape near Lowell Street. On the opposite side of the alignment from the station, expect to see 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 on the Magoun Square Station continues as do modifications to the foundation of the Lowell St. Bridge. Modifications will also continue at track level below the Cedar St. Bridge.

Retaining wall work between Lowell and Central St. has been very active over the past few months and will continue to advance in preparation for future light rail track placement. As this work advances, we will be losing an access point in the lot adjacent to Somerville Junction Park. This is a positive sign of advancement but will mean the few other access points will see an uptick in construction traffic.

Initial work is also starting where the existing Community Path and the new extension tie together.

Track placement has started north of Cedar St. stopping just short of the Magoun Square Station. Getting this track set will be a major focus during this period as will preparing the right-of-way for track placement south of Lowell St.

Night Work: Yes. Expect night work in this area associated with retaining wall construction and the placement of steel noise wall panels and excavation behind walls on the east side.

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: Now that the Ball Square Station platform has been poured, work developing the superstructure of the facility will continue as will work on the station headhouse. Some additional work is needed on the traction power substation before being turned over to the Systems group.

Track is in place now both north and south of the Ball Square Station. A lot of work in this period will be focused on preparing to place track in this section and thus will close the gap in the continuous new Green Line track alignment.

Night Work: Night work is likely in support of noise wall panel placement.

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: As in prior updates, work on the station platform foundation and headhouse is continuing to move forward. Work will also advance on the retaining wall next to the station and along Boston Ave. South of College Ave, bridge work continues on another retaining wall that is positioned behind Tufts University buildings. During this period the systems group will start the installation of the OCS foundations.

Night Work: Yes. Noise wall panel installation and other wall related work is likely during this period at night.

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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