Amtrak is undertaking a multi-year project to perform significant power system upgrades to the Harrisburg Line, used by both Amtrak and SEPTA trains.
Amtrak crews will construct new transmission lines and replace old structures. This includes demolishing the existing Bryn Mawr substation and building a new one with added functionality as a traction power substation.
The main purpose of this project is to fill a gap in the power supply system that impacts trains using the Harrisburg Line. Correcting this will benefit Amtrak and SEPTA passengers by allowing for more reliable, faster trips on these trains. Furthermore, it will eliminate the frequent repairs needed by the outdated infrastructure, which will prevent future disruptions in service.
Project Location and Hours
The work will take place along 18 miles of the Harrisburg Line between the zoo substation in Philadelphia and Paoli substation in Chester County.
Work will begin October 28, 2024 and is anticipated to be completed by winter 2027.
Construction hours for the project take place during the day and night. At times, crews may be on-site 24 hours a day.
Impact on Riders
The impact of this project on SEPTA riders will be minimal; there may be an increase in noise levels typical with construction. The Paoli/Thorndale Line that utilizes Bryn Mawr Station will continue to operate as normal.
Impact on Area Traffic
No detours or street closures are expected to result during this project. There will, however, be increased traffic from trucks on the street when construction is occurring.
Note that there will be changes to parking at Bryn Mawr Station. During construction,
19 parking spaces will be temporarily unavailable, and after the new substation is complete, 12 parking spaces will be permanently removed. If you regularly park at Bryn Mawr Station, please plan accordingly.
Project Details
- The majority of the old support structures will be removed.
- The new structures will be taller than the current ones.
- The existing substation will be demolished and replaced with a larger one.
- A new brick facade and control building will be installed.
- Additional details are available on Amtrak’s website.