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Service Change Ongoing
All MBTA services are running on a reduced schedule until further notice in the interest of the health and safety of our riders and employees. Full details: MBTA.com/coronavirus

Red Line Maintenance Work

A crew works on track replacement at Downtown Crossing during the November 15 – 17, 2019, weekend shutdown.
A crew works on track replacement at Downtown Crossing during the November 15 – 17, 2019, weekend shutdown.

The Red Line has more than 44 miles of track: It runs 11.5 miles from Alewife to Ashmont and 17.5 miles from Alewife to Braintree (and back!). The tracks are just a piece of the complex system that supports trains weighing hundreds of thousands of pounds—and 227,000 rider trips each weekday.

We’re working hard to keep the tracks in good repair and support new Red Line vehicles coming into service with:

  • Rail tie replacement in 2020
  • Floating slab maintenance in 2020
  • Track replacement and station improvements completed in 2019

Diversions

Building a Better T 2020

This project is one of many we are accelerating in 2020 that will deliver results to riders sooner.

Learn more about this work

Rail Tie Replacement

Tie replacement involves using heavy machinery to align the ties before crew members secure them in place, as seen here during Orange Line work in July 2019.


Starting on March 15, 2020, our crews will begin replacing approximately 6,000 rail ties between Quincy Center and Braintree stations. Work will be done on weeknights, and shuttles will replace trains during this time.

Rail ties run perpendicular to the tracks with the rails sitting on top. Aging ties are often the cause of speed restrictions along sections of track. The new ties our crews are installing will last up to 30 years and will reduce the possibility of speed restrictions.

Learn more about Red Line service changes

Floating Slab Maintenance

A crew places new rebar in the subway tunnel near Alewife, part of the Red Line floating slab maintenannce.

Work on the floating slab system between Harvard and Alewife stations resumed on weekends in January 2020. Shuttles will replace Red Line service during this work, which we expect to complete by the end of April 2020.

    Track Replacement and Station Improvements

    A crew works on track replacement at Downtown Crossing during the November 15 – 17, 2019, weekend shutdown.

    From November 15 – December 15, 2019, shuttles replaced train service between Kendall/MIT and Broadway on 4 weekends to support Red Line work through the T’s Capital Acceleration Plan.

    These closures allowed us to complete station improvements and track replacements at Park Street 4 months earlier than planned, and at Downtown Crossing 11 months earlier than planned. We closed a broader section of the track so crews could bring vehicles and equipment into the central subway tunnel.

    We thank you for your patience during these closures.

    Service Alerts

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    Recent Updates

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    Diversions

    Building a Better T 2020

    This project is one of many we are accelerating in 2020 that will deliver results to riders sooner.

    Learn more about this work

    Recent Updates

    View all project updates