BOSTON – Amtrak recently topped out the steel structure for its new Maintenance & Inspection (M&I) Facility in Boston and the building envelope is closing in, marking the placement of the final steel beam and an important construction milestone at Southampton Yard. This achievement reflects the strong collaboration between Amtrak and the project contractor as the facility continues to take shape.
The new M&I facility will help advance Amtrak’s New Era of Rail, supporting maintenance of the new Airo fleet that will debut on the Northeast Regional in late 2027. Completing the structural frame brings the project a significant step closer to delivering a modern, efficient facility that will strengthen Amtrak’s operations throughout the Northeast Corridor and Amtrak Downeaster routes.
Construction began in late 2025 on the 860-foot-long facility, with new facility and renovations to existing buildings slated for completion in phases through 2029. It will be used for daily inspections, service and cleaning and more.
Construction progress to date includes:
- Approximately 700 underground soil stiffening elements completed for increased bearing capacity and soil stabilization.
- More than 9,000 cubic yards of concrete placed for the facility’s foundations and structural elements.
- Approximately 1,400 tons tons of structural steel erected for the M&I superstructure.
- More than 10,000 structural steel bolts installed.
- Approximately 1,200 tons of reinforcing steel installed.
- More than 220,000 worker-hours completed since construction began.
Images above show construction progress over the past year, including the beginning of the steel work.
Additional upgrades include a new direct fixation track on pedestals; removal of existing and installation of new overhead catenary (electric power) structures; new storage tracks for both MBTA commuter trains and Amtrak equipment; new retaining walls; new industrial equipment (including drop tables, split rails, overhead cranes, sanding systems); utility relocations; yardmaster’s operations area; and more, all without impacting the customer experience.
These upgrades will benefit Amtrak customers across the East Coast–including the Northeast Regional between Boston and Washington, D.C., and the Amtrak Downeaster between Boston and Brunswick, Maine. This facility will also be used for Acela and Long Distance trains that operate out of this yard, connecting with cities such as Chicago, New York, Philadelphia, Baltimore, Washington, D.C., and Richmond.
Amtrak is building a network of new and upgraded maintenance facilities across the country to support today’s fleet and the next generation of trainsets. These modern facilities allow full trainsets to be inspected and serviced together, reducing downtime and improving efficiency.
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