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GLX construction activities and traffic updates

Aug. 2 - 21, 2020, construction outlook and upcoming plans. Work schedule is subject to change based on weather or other factors.

Table of Contents

Union Square Station

Overview of work in the area: Station and support facility construction is well underway not far from the Prospect St. bridge. 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: Construction continues on the future Union Square Station which is the furthest along of all the stations. Installation of signaling and communications equipment will progress during this period as will installation of catenary poles which support the light rail power source. Once rail bed placement is complete, rail track installation will begin and continue through August.

Night Work: None planned during this period.

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 frequent nights and weekends.

Work Planned for the next few weeks: Construction of the new Lechmere Viaduct section continues with steel placement between the Gilmore Bridge and East St. Further north, from East St. to the Boston Engine terminal area, viaduct construction is progressing with some sections being framed up while others are completely developed.

Near Brickbottom Condominiums, work moves forward on foundations for some elevated structures including the Community Path. Work also continues to advance on a mechanically stabilized earthen (MSE) wall that serves as the transition between the viaduct and the at-grade rail line. Work on this ramp will continue throughout August and into early fall.

Night Work: Yes. Yes. Expect construction noise primarily due to MSE wall construction when this work moves into a second shift. Most of the noise generated with be from heavy equipment movement in the area.

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: Construction of the catenary system continues as does work on the Vehicle Maintenance Facility (VMF) and Transportation Building. Track installation will begin during this period.

Night work: Yes, night work is possible in this area.

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: East Somerville Station and platform construction continues to advance behind Joy Street. At the Washington St. rail overpass, work continues at track and roadway level. Crews are working to get the sidewalks open and complete all the drainage tie-in so that the underpass will be fully open by this fall.

Further north, retaining wall construction continues up to Walnut St.

Night Work: Yes. Installation of noise wall panels and other activity is 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.

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

Overview of current work in the area: The GLX Project continues to work closely with the Somerville High School construction team near the future Gilman Square Station. Currently, work consists of modification to the School St. and Medford St. Bridges, building a Traction Power Substation near the Medford St. Bridge, and building of a new retaining wall on the high school side of the tracks.

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: The foundation for the Gilman Square Station is taking shape as the sides and roof are placed on the traction power substation near the Medford St. Bridge.

A clear access way for the Green Line is now visible underneath the Medford St. Bridge and is visible to those walking along Walnut St. or School St. bridges. Work on modifying the Medford St. and School St. bridges continues.

Just north of School St. and behind Montrose, foundation drilling for the large retaining wall will wrap up and the large earthen ramp will begin to be removed. Retaining wall foundation work and drainage installation continues between Sycamore and Central.

At this and other locations along the east side of the corridor, expect to see concrete retaining wall panels and steel noise wall panel placement.

Night work: Yes. Soil removal or other support activity is likely during this period as is work installing retaining wall panels.

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 the start of 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, 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: Running utilities to the future Magoun Square Station continues to be the focus in the first part of August as work transitions into building the station foundation. Lowell St. Bridge modifications on the Maxwell’s Green side of the bridge are very apparent and will continue to progress. So too will retaining wall foundation drilling at Central and Lowell Streets.

Drainage installation is progressing as is the placement of steel noise wall panels.

Night Work: Yes. Expect night work in this area associated with retaining wall construction.

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: A partial reopening of the Broadway Bridge was completed on June 7 and traffic has been functioning smoothly since then. A short-term closure of the Bridge is planned from July 31 through August 2 to advance work required for the full-volume opening of the bridge. Final surface preparations, construction of permanent sidewalks and a station entrance on the new, longer span bridge is the most visible work near the future Ball Square Station. In addition, work is progressing on the Traction Power Substation nearby along Boston Ave. Other work in the area includes:

  • Developing footprint of future Ball Square Station
  • Retaining & noise wall construction between Cedar St. and Broadway
  • Small section of noise wall construction north of Broadway and connecting it to an existing wall at Granville Ave.
  • Drainage
  • Relocation of major utility lines

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

Work Planned for the next few weeks: Wall foundation construction will continue between Cedar St. and Broadway and behind homes on Boston Ave.

Punchlist work on sidewalks and final surfacing continues on and around the Broadway Bridge.

The foundation for the future Ball Square Station will be poured during this period as work advances inside of the new traction power substation.

Night Work: Night work is likely in support of wall construction.

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: From Harvard St. north, work continues on a retaining wall that stretches about halfway to College Ave.

North of College Ave., soil nail placement along the Boston Ave. hillside will continue throughout August. Steel noise wall panels will start to be placed along the east side of the alignment to the project terminus.

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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