GLX construction activities and traffic updates

Nov 16 - Dec 6, 2019, 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: Site prep work at the future station location

Work Schedule: Monday – Friday, 7 a.m. to 4 p.m.

Work Planned for the next two weeks: Work continues along the rail line behind the Target on Somerville Ave. Crews continue to build the foundation for a new, mechanically stabilized earth (MSE) wall

Night Work: None planned

Lechmere Station

Overview of current work in the area: Besides building a new Lechmere Station on the north side of Monsignor O'Brien Highway, work in this area includes constructing an elevated viaduct that will connect to the existing structure running along Charles River Dam Road. After the Lechmere Station stop, the viaduct continues behind buildings along O'Brien Highway until it splits, with one leg heading to Union Square and the other north to the future East Somerville Station.

Work Schedule: Monday – Friday, 7 a.m. to 4 p.m. and frequent nights and weekends

Work Planned for the next two weeks: Foundation work for the new Vehicle Maintenance Facility continues as does work on a retaining wall around the perimeter of the facility. The foundation work for the associated transportation building has begun.

Near the future Lechmere station and in the MBTA Boston Engine Terminal area concrete cap pouring and steel beam placement for the new viaduct continues.

At Brickbottom Condominiums, drilling for the foundation for the elevated portion of the Community Path Extension is expected to begin in early December.

Night Work: Yes. Expect continued night work in this area and moderate construction noise primarily due to movement of heavy machinery. Contractors will make efforts to direct lighting away from residential buildings.

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

Overview of current work in the area: Replacement of the Washington St. rail overpass, improving drainage in the area, and building both noise and retaining walls are the main focus in this area.

Work Schedule: Monday – Friday, 7 a.m. to 4 p.m. with some weekends & frequent nights

Work Planned for the next two weeks: Track shift preparations at the Washington St. rail overpass continue as the steel deck now has a coating of asphalt. The next step is placing track along the new crossing.

Between Cross St. and McGrath Highway work continues on a retaining wall along Avon Place and Auburn St. This wall is being built just in front of the existing concrete "green wall". Drainage work is also active here.

Grading behind noise walls between McGrath Hwy. and Walnut St. continues as workers make the tie-in between personal property and the new walls.

Night Work: Yes. Crews will continue working nights in this area preparing for the commuter rail track shift.

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 to complete a vast amount of working place near the future Gilman Square Station. Currently, work consists of installing drainage along the tracks and building a new retaining wall on the high school side of the tracks.

Work Schedule: Monday - Friday, 7 a.m. to 4 p.m. with weekends and night work during this period.

Work Planned for the next two weeks: Drilling and placing posts for the retaining wall foundation behind Somerville High School continues.

On the opposite side of the tracks, excavation continues on a deep reinforced trench where we are placing a 60-inch pipe. Installation of this stormwater drainage continues to Central St. where it will tie into the storm line installed earlier this year near Rogers Foam.

Behind homes on Richdale Ave & Montrose, between School St. and Sycamore St., crews continue to place 60-inch stormwater line and build the noise wall.

Night work: Yes. Continue to expect night work with rock removal along the drainage corridor taking place until 10 p.m. near Sycamore. Installation of lagging along this drainage line continues throughout the night as well as other work preparing for the track shift.

Magoun Square Station (Central to Cedar)

Overview of work in the area: Installing new drainage and building walls (both retaining and noise walls) are the main activities currently in this area.

Work Schedule: Monday – Friday, 7 a.m. to 4 p.m. and frequent weekends

Work Planned for the next two weeks: Drainage and retaining wall work continues in preparation of the upcoming commuter rail track shift.

Night Work: Work supporting the commuter rail track shift is likely to occur at night on this section of the project.

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

Overview of work in the area: Construction of a longer span Broadway Bridge is the most visible work near the future Ball Square Station. The site that was cleared to make way for future Ball Square Station and a Traction Power Substation is currently serving as a laydown yard for soils and bridge materials. Work in the area includes:

  • Stabilizing the soil on both sides of the bridge to support the subsequent phases of bridge construction.
  • Drilling shafts and building the abutments that will support the new Broadway Bridge
  • Developing footprint of future Ball Square Station
  • Noise wall construction between Cedar St. and Broadway
  • Small section of noise wall construction north of Broadway and connecting to existing wall at Granville Ave.
  • Install deep drainage system
  • Relocation of major utility lines beneath the tracks

Work Schedule: Monday – Sunday, 7 a.m. to 4 p.m. and frequent nights.

Work Planned for the next two weeks: Drilling the foundation for the new Broadway Bridge continues. Additionally, work is advancing on two stormwater manholes near Granville and Newburn that will tie in all surrounding stormwater drainage. A crew will be out at Granville and Winchester digging test pits to confirm existing utility locations. Work on the drainage line from the rail right-of-way into Winchester will begin soon.

Night Work: Yes. Expect night work to continue north and south of the Broadway Bridge from Granville Ave in Medford to Cedar Street in Somerville as crews advance foundations, walls, and utility relocation to prepare for the commuter rail track shift over to its permanent location. During this work, contractors will make efforts to minimize noise, however, work zones north of College Avenue 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.

College Ave. Station (Harvard St. to Winthrop St.)

Overview of work in the area: Installing new drainage and building walls (both retaining and noise walls) are the main activities currently in this area.

Work Schedule: Monday – Friday, 7 a.m. to 4 p.m. and frequent weekends & nights

Work Planned for the next two weeks: North of College Ave work is focused on completing the next major milestone of placing commuter rail line track into its final configuration on the east side of the alignment. To this end, workers are finishing some additional utility line relocation near Tufts University construction project.

On the west side (Boston Ave. side) of the alignment, foundation drilling continues for a large retaining wall just north College Ave. The hillside along Boston Ave was recently cleared to allow this work to move forward.

Night Work: Yes. Expect night work to continue north of College Ave. as crews finalize wall work, relocate utilities and place the new commuter rail track. Contractors will make efforts to minimize noise, however, work zones north and south of College Avenue 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.

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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