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GLX construction activities and traffic updates

Nov. 17 – Dec. 8, 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. 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: The Union Square Station is taking shape as work will continue on the station platform and throughout this construction zone. Rail bed, track installation and retaining wall construction will advance throughout this period as well. System infrastructure is scheduled to begin after rail installation

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 weekends.

Work Planned for the next few weeks: Viaduct construction in this area will be nearly completed at the end of this period with the final deck and parapet sections going into place between the project terminus at Gilmore Bridge in Cambridge up to and across the tracks near the Boston Engine Terminal. On top of the viaduct, the north headhouse is taking shape with the elevator shafts in place. Expect more work on this headhouse as well as the one closer to East St.

The first signal house is expected to arrive during this period with the remaining 8 to arrive over the next few months.

In the construction zone near Brickbottom Condominiums, there will continue to be a lot of walls and drainage work. Up on the viaduct in the Red Bridge area we have begun waterproofing the concrete decking and parapets in preparation to begin placing ballast and light-rail track.

Night Work: Yes. Night work is taking place on the Mechanically Stabilized Earth wall behind Brickbottom Condominiums through mid-December. This wall section will support track between the Lechmere and East Somerville Station. 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: Efforts continue to focus on placing siding panels on the exterior of the Vehicle Maintenance Facility to make it weather tight for the winter. Construction will continue to be very active inside both the VMF and Transportation Building.

Drainage and systems installation are advancing to the point where track placement is expected to start 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: Work will continue on the East Somerville Station platform and utility building. Wall and drainage work continue throughout the general area.

Below the Washington St. rail overpass, the north sidewalk recently opened up to pedestrians allowing workers to remove the temporary ped access point across the street. Attention will now turn to finishing the remaining wall work on the south side of the bridge so this sidewalk can be opened up in the future.

North of Washington St. along the rail corridor, retaining wall construction remains active up to Walnut St.

Night Work: Yes. Installation of noise wall panels and other activity is likely 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: Foundation construction for the future Gilman Station will continue. The nearby traction power substation is being repainted and work to seal up the building before winter is in high gear.

At the Medford St. Bridge, work is focused on center pier reinforcement and readying the new abutment for steel placement. At the School St., bridge similar efforts are underway.

Retaining wall construction between School St. and Central St. is progressing. Once concrete retaining wall panels are fully in place in these sections, crews will start backfilling between the wall and hillside. In most of these sections, this is where the Community Path will be located.

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 foundation for the Magoun Square Station platform and utility building continues as do modifications to the foundation of the Lowell St. Bridge. Bridge modifications are also continuing at track level below the Cedar St. Bridge.

Retaining wall steel H-piles are in place on the west side of the alignment from Central to Lowell. Expect to see concrete wall panels being inserted between those piles during this period. On the east side expect to see concrete and steel panels placed in the existing gaps as shipments arrive.

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
  • Relocation of major utilities including waterline and drainage on both sides of track near the Broadway Bridge
  • 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: Retaining wall construction continues between Cedar St. and Broadway.

Minor punchlist items on the Broadway Bridge are being addressed.

The Ball Square Station platform will continue to advance along with interior and exterior work at the traction power substation.

North of Ball Square and near Harvard St., track installation has started and will continue through this period.

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: Light rail track installation is underway between College Ave and south of Harvard St.

North of College Ave., work on the station platform foundation continues along with the remaining drainage around the station. Steel noise wall panels installation will also continue.

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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