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Blue Line Maintenance Work

A crew works on rail maintenance in a tunnel, between Bowdoin and Government Center, with heavy machinery in the background.
Crew members unload new rail from a swing loader for track replacement on the Blue Line near Bowdoin.

The Blue Line travels nearly 6 miles from Bowdoin to Wonderland. The tracks are just a piece of the complex system that supports trains weighing hundreds of thousands of pounds—and nearly 80,000 rider trips a day.

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

What work will you be doing?

The work is part of the MBTA's $8 billion, 5-year capital improvement program. During weekend work in September 2019 at Bowdoin, our crews replaced 312 feet of track near Bowdoin for a smoother ride.

Starting in May and through June 2020, track replacement work will resume between Bowdoin and Airport stations. Starting in August, we will again close sections of track between Bowdoin and Airport so we can begin working on harbor tunnel improvements.

How is rail installed?

Sticks of rail, which are 39 feet long and weigh about 1,500 pounds each, are placed in a line, and then welded to each other to create a continuous welded rail section, called a “stringer.”

Stringers are installed using special equipment. Much of the new rail being installed will replace existing stringers that have worn down over the years, as well as jointed rail.

How will this work affect me?

Our crews need safe and uninterrupted access to the tracks to get this work done.

Learn more about Blue Line service changes

Related Projects

View all projects

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

Related Projects

View all projects