Orange Line 30-Day Surge: Week Three Update
Updated on September 9, 2022
At the end of week three of the 30-day Orange Line closure, we’ve completed 69% of our planned work. We’ve replaced 7,280 feet of rail and 2,695 feet of full-depth track, as well as 240 Cologne-eggs rail fasteners at Tufts Medical Center to make for a smoother, safer ride.
Special trackwork at Jackson Square was completed, allowing us to remove another slow zone to get riders where they need to go faster. Signal upgrades continue between Oak Grove and Malden, and we have been running test trains between the two stations to assess our updated signals and troubleshoot any issues. As we near the end of the closure, crews are beginning to finalize projects and ready the line for a return to full revenue service with track-wide upgrades in place.
We're taking advantage of the Orange Line closure to make upgrades, perform maintenance, and clean stations as opportunities arise. We will continue to keep you updated as we begin to transition through the end phases of these projects.
Building a Better T
As part of our $9.6 billion, 5-year capital investment plan, we're renovating stations, modernizing fare collection systems, upgrading services for our buses, subways, and ferries, and improving the accessibility of the entire system.
What We've Accomplished
During the third week of the Orange Line 30-Day Surge, crews have completed the following work:
- Removed a second slow zone at the Jackson Square Crossover
- Prepared 60 new Orange Line train cars for peak service hours
- Continued to replace rail and ties near Wellington, Back Bay, and Assembly stations and ties near Community College station
- Advanced signal work at Oak Grove and Malden Center, including the testing with a new Orange Line train
- Continued special trackwork at Wellington, which included switch installation, welding and grinding for final track adjustments, installation of signal components and installation of a large portion of the third rail, which provides electric power to Orange Line trains
- Continued tie replacement across Dana Bridge and through Assembly and Sullivan areas; crews have replaced over 1,800 ties
- Installed new and removed old Cologne-egg vibration reduction hardware at the Tufts Medical Center curve
Additional Repairs and Upgrades
In addition to completing prioritized work, we're using this time to achieve other planned repairs and upgrades. In week three, crews completed the following additional work:
- Wellington Power Vault: Installed new ductbanks and a traction power box for third rail power, allowing the power cables to be relocated to more resilient and reliable underground routing for vehicle power in the Wellington area
- Massachusetts Avenue to Forest Hills Retaining Wall Inspections: Investigated the structural condition of our retaining walls to ensure the safety of the system and provide information for future repairs
- North Station to State Conduit Inspection: Confirmed the feasibility of electrical cable installation to provide emergency power improvements for planned upgrades at North Station
- Ruggles Duct Bank Inspection: Used ground penetrating radar and performed additional utility investigations to inform upcoming In support of Ruggles Station Improvements Phase II work
- Jackson Square Expansion Joint Inspection: Performed an engineering investigation of station tunnel leakage to assess plans and solutions for future leak repairs
- Ruggles to Forest Hills Transit Bridge Inspections: Examined the structural condition of transit bridges from Ruggles to Forest Hills to provide information for repair plans and engineering solutions
For questions, comments, or concerns regarding these shutdowns, please contact Customer Support.
For questions or comments related to this project, please email the Orange Line Transformation team at OLT@mbta.com.
To report construction issues or noise complaints, please call the OLT project hotline at 617-222-3393.
Sign Up for Orange Line Transformation Updates
To get project news delivered to your inbox, sign up for our weekly newsletter.