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Service Change Ongoing
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Blue Line Harbor Tunnel Infrastructure Improvements

The Blue Line harbor tunnel runs between Aquarium and Maverick stations and passes under Boston Harbor

We’re upgrading the Blue Line between Airport and Aquarium stations to improve resiliency and travel time.

The harbor tunnel, which runs between Aquarium and Maverick stations, passes under Boston Harbor and is susceptible to flooding during storm surges. We’re making infrastructure upgrades to improve flood resilience and prevent water leaks and corrosion.

We’re also replacing the track between Airport and Maverick stations so we can lift a speed restriction and improve travel times.

Diversions

Building a Better T

As part of our $8 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.

Learn more

What to Expect During This Work

In May 2020, we will close sections of track between Bowdoin and Airport stations while we work on track replacement and prepare for other accelerated work. Starting in August, we will again close sections of track between Bowdoin and Airport so we can begin working on harbor tunnel improvements.

Learn more about Blue Line service changes

Related Projects

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Diversions

Building a Better T

As part of our $8 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.

Learn more

Related Projects

View all projects