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Gloucester Drawbridge Replacement September 2021 Progress Recap

Updated on November 4, 2021

Crews work to complete the control tower
Work on the control tower nears completion (September 2021)

The MBTA is pleased to provide an update on ongoing and completed project activities, as well as a preview of upcoming work.

While the complete project remains on schedule, supply chain delays and bridge construction complexities have delayed opening of the southern barrel. As the MBTA evaluates alternatives to restore rail service as soon as possible, work crews will use this opportunity to accelerate other projects planned for the line.

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.

Learn more

Control Tower

Crews work to complete the control tower so it’s ready to operate the new bridge. They installed the glass enclosure on the observation level of the tower.

Glass enclosure on the observation level of the tower
Glass enclosure on observation level of the tower (September 2021)

Workers connected power and controls from the main drive to the control panel. They installed plumbing and prepped the interior of the control tower for drywall installation.

Plumbing installed in the control tower
Plumbing installed in the control tower (September 2021)

Piers 2 and 3

Crews completed the installation of the two remaining drilled shafts, located at Pier 2 and Pier 3.

Drilled shaft installation
Drilled shaft installation (September 2021)
Drilled shaft installation
Drilled shaft installation (September 2021)

Work crews installed steel reinforcement and placed the concrete for the Pier 3 pile cap—they removed the forms for the concrete and completed the pier. The Pier 2 pile cap is currently under construction.  

Concrete placed for Pier 3
Concrete placed for Pier 3 (September 2021)

Signals, Power, and Utilities

Pre-testing for the control tower operation of the bascule span has begun. Workers are using the main drive and control panel to operate the bridge. Crews continue installation of the signal system, connecting all the Signal Instrument houses and the Signal Instrument rooms together.

Installation of the signal system
Installation of the signal system (September 2021)

Upcoming Work

  • Installation of drywall and plumbing inside the control tower

  • Witness testing of the new equipment and systems 

Related Projects

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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.

Learn more

Related Projects

View all projects

Get Involved

Sign up to receive email advisories and meeting notices.