GLX construction activities and traffic updates

September 15 - October 1 construction outlook and upcoming plans. This schedule is subject to change based on weather or other factors.
skip table of contents

Table of Contents

Track Shift

  • Target Start: Late September 2018
  • Duration: Oct. 6 - 7; Oct. 13 - 14; & Oct. 20-21
  • Purpose of Work: Provide GLX Project construction workers with maximum amount of space to safely work on the east side of the rail alignment.
  • Approach: Shift existing commuter rail from its current alignment toward the west.
  • Impacts: Commuter rail service will be interrupted on these weekends.
  • Areas impacted in next two weeks: Night work (9 p.m. to 5 a.m.) between Medford St. and Lowell St. began Sept. 4 and was completed one week early on Sept. 8. More than 3,000 tons of ballast stone was delivered last week for the new line. During day shift expect more site prep and hauling of track and other materials in support of the shift to the new track location.
  • Benefits: Maximizes work space and safety factor for workers and commuter rail operations.

Pre-Construction Survey

  • Target Start: Work underway
  • Duration: Surveys of each property take approximately one hour to complete. Work will continue throughout 2018.
  • Purpose of Work: Capture existing conditions of homes and businesses along the alignment to compare with final conditions should questions arise concerning adverse construction impacts.
  • Approach: Peer Consultants initially documented conditions from the ROW. In late April/early May Phase I of the survey went into effect and property owners were contacted requesting access to their properties in order to perform the survey work (inside & out). Notifications and survey work will continue throughout 2018. Survey work will continue to progress from the northern part of alignment and progress to the south.
  • Impacts: Some time commitment by the part of homeowner.
  • Areas impacted in next two weeks: All Phase 1 properties on the east/north side of the ROW between 200 Inner Belt Road in Somerville and Burget Avenue in Medford have been notified at least 3 times and are considered complete. Peer Consultants is continuing preconstruction work between in the area near East Street, Cambridge. The project will continue to book appointments in that area through October.
  • Benefits: Homeowners will receive a report from the survey. This operation will provide documentation of existing conditions to property owners to ensure any project impacts are captured.

Pest Control

  • Target Start: Work underway
  • Duration: Abatement work began in April 2018 and will continue throughout the duration of project. A1 Pest Control is now checking bait stations once a week to monitor pest activity.
  • Purpose of Work: Reduce chances of pushing rodent issues from right-of-way (ROW) into rail neighbors’ properties.
  • Approach: A rodent habitat inspection on the ROW was completed and the Green Line Extension Constructors Pest Management Plan has been adjusted based on the findings. Nearly 500 hundred baiting stations have been placed along the ROW with baiting in hundreds of burrows.
  • Impacts: Our goal is to reduce the number of rodents, their habitats and conditions that support the rodent population. Subcontractor will closely monitor this work to minimize off-property impacts.
  • Areas impacted in next two weeks: Baiting continues throughout the alignment each week. No direct impacts, but as construction progresses are closely monitoring baiting stations for activity.
  • Benefits: Construction team is working with the cities of Somerville, Medford, and Cambridge to maximize the effectiveness of their efforts with ours.

Soil Boring & Utility Investigation

  • Target Start: Work underway
  • Duration: Soil boring work and utility investigation work continues.
  • Purpose of Work: Determine soil and rock quality to support design efforts. Confirm drawings and utility locations match to avoid possible utility strikes and disruption of service during construction.
  • Approach: Multiple crews with boring and other earth moving equipment are methodically moving operations throughout the entire GLX construction corridor.
  • Impacts: Minimal
  • Areas impacted in next two weeks: Work continues throughout the alignment. Some temporary lane closures possible.
  • Benefits: Soil characterization plays an important part in design.

Upcoming work - Demolition of Homan Building (near Medford & Pearl St.)

  • Target Start: October 2018
  • Duration: 3 - 4 weeks
  • Purpose of Work: Make way for contractor material laydown area and site access.
  • Approach: Standard demolition approach
  • Impacts: Temporary lane closures on Medford St.
  • Areas impacted in next two weeks: A local contractor completed a silicon rubber mold of the lion’s head in the front of the building as part of the effort to ensure the lion and the door surround elements are saved. Work will now begin carefully removing these elements from the building.
  • Benefits: The site will provide an off-road construction staging and lay-down area for GLX and the future construction of a traction power substation. Post construction, the site will provide the City of Somerville with significant development opportunities.

Upcoming work - Demolition at Ball Square

  • Target Start: October 2018
  • Duration: 3 - 4 weeks
  • Purpose of Work: Make way for contractor material laydown area and future Ball Square Station
  • Approach: Standard demolition approach
  • Impacts: None
  • Areas impacted in next two weeks: Property owners will be notified via certified and regular mail of the upcoming demolition work.
  • Benefits: Removing these buildings will support Broadway Bridge demolition/construction and future Ball Square Station Construction.

Upcoming work - Broadway Bridge Closure

  • Target Start: Early 2019
  • Duration: 12 months
  • Purpose of Work: A new, redesigned Broadway Bridge is needed to accommodate the additional light-rail lines that will pass underneath the bridge.
  • Approach: The design and construction of the existing bridge does not allow it to be taken down in stages and thus maintain vehicular and pedestrian traffic. A full closure will be needed and all demolition and construction will need to be synchronized with commuter rail operations.
  • Impacts: Significant Traffic congestion issues for motorists and pedestrians in the area and extensive night and weekend work will be required to take advantage of narrow time windows when commuter trains are not operating. While the project will seek to minimize construction impacts, noise and work lights emanating from the site are to be expected.
  • Areas impacted in next two weeks: None
  • Benefits: The work will advance this important phase of the project forward in an efficient manner.

Upcoming work - Washington Street Underpass Closure

  • Target Start: Winter 2018 & Spring 2019
  • Duration: Thru Fall 2020
  • Purpose of Work: Replace and widen the rail bridge and associated infrastructure along the roadway including drainage improvements. A wider bridge is needed to make room for Green Line Extension track. This replacement will be a total redesign and improve the overall functionality of this overpass.
  • Approach: While some weekend closures are planned to complete early phases of the work, the entire underpass will be closed for 8 months and later for 5 months. Detours will be in place and heavy business and commuter outreach will lead up to the closures.
  • Impacts: Significant
  • Areas impacted in next two weeks: Possible lane closures for repairs
  • Benefits: A more functional overpass will result that is within a short distance of the East Somerville Green Line Station.

Feedback

Did you find what you were looking for on this webpage? * required
We use your feedback to help us improve this site but we are not able to respond directly. Please do not include personal or contact information. If you need a response, please locate the contact information elsewhere on this page or in the footer.
We use your feedback to help us improve this site but we are not able to respond directly. Please do not include personal or contact information. If you need a response, please locate the contact information elsewhere on this page or in the footer.

If you need to report child abuse, any other kind of abuse, or need urgent assistance, please click here.

Feedback