Fall 2025 T Trolley Tunnel Closure Information

Update as of February 2026:

Trolleys remain on diversion overnight. The update history below is included for reference purposes.

Update as of January 30, 2026: Planned tunnel maintenance work for this weekend has been canceled due to the impact extreme temperatures have on the overhead wires that were scheduled to be replaced. The trolleys will run in the tunnel as normal this weekend, limiting riders exposure to frigid temperatures.

Update as of January 27, 2026: The weeklong closure previously scheduled from 10 pm on February 13 through 5 am February 23 has been shortened to a weekend only closure from 10 pm on February 13 until 5 am February 16.

Continued Overnight Trolley Tunnel Closures

To allow time for additional inspections and maintenance, the tunnel will be closed and all trolleys will run on diversion each night between 10 pm and 5 am.

We thank you for your patience during this extended outage and sincerely apologize for the disruption that it has caused. We look forward to seeing our riders and our trolleys safely back in the tunnel.

Update as of December 16, 2025:

SEPTA is running a T Bus Shuttle as the Center City Trolley Tunnel Closure is expected to continue through the end of December. On weekdays, the shuttle runs every 10 minutes or better from 6 am to 10 pm, and every 15 minutes from 10 pm to midnight. On Saturdays and Sundays, the shuttle runs every 10 minutes from 6 am to 10 pm, and every 15 minutes from 10 pm to midnight. Refer to the T Bus PDF Schedule for exact stop times.

SEPTA made these changes after determining that more testing is needed before the tunnel can be opened for regular trolley service. 

We understand the frustration this extended closure is causing to our riders. To mitigate the impact of this closure, SEPTA is doing the following: 

Implementing a T Bus Shuttle between 40th-Market and 15th St/City Hall 

To better meet the needs of riders traveling to/from points between 40th St and 15th St not served by the L, SEPTA implemented a T Bus Shuttle, which runs between 6 am and midnight, seven days a week.

The map below illustrates the route followed by the shuttle (click to enlarge).

This bus option runs approximately every 10 minutes between 40th-Market and 15th St/City Hall, stopping near each T station along the way: 

T Bus Shuttle stops: 

  • 40th and Market 
  • 36th and Market 
  • 22nd and Market 
  • 19th and Market (Eastbound) / 19th and JFK (Westbound) 
  • 15th and Market  

Note: This shuttle bus information is now incorporated into the data that feeds our website, app and third-party apps.

Working with partners at the City of Philadelphia, Philadelphia Police Department, and Philadelphia Parking Authority to implement on-street interventions to speed up the flow of diverted trolleys. So far:  

  • SEPTA Transit Police and PPD Traffic have been stationed at 38th and Spruce to prioritize trolleys turning from Spruce onto 38th St. 
  • Parking restrictions have been put in place along the left side of 40th St to minimize the impacts of illegally stopped or double-parked cars blocking T service. 
  • 40th Street between Powelton and Market Streets has been closed to private vehicle traffic during peak hours. 
  • Some traffic lights along 40th Street have been granted extended green time to keep traffic flowing smoothly. 

We thank our partners at the City of Philadelphia, Philadelphia Police Department, and Philadelphia Parking Authority for their proactive collaboration on these efforts, and continue to actively work with them to implement additional interventions.  

Travel Tips to/from Center City Philadelphia

  • Using the 46, 63, 52, or 64 bus to connect to the [L] 
  • Using the 21, 42, or 12 bus to travel to and from Center City
  • Using Indego, Philadelphia’s bike share system, to connect to a SEPTA stop or station that may be too far to walk. Indego has stations near many [L] and [T] stations, and now offers single-trip ride options. See Indego map here

We have also prepared updated [T] PDF schedules to provide a better idea of travel times to/from 40th St & Market St. You can view them below.

Background Information

Results from continued test trains have determined that additional testing must be completed before the trolley tunnel can reopen.

All T trolleys will remain on diversion to 40th and Market streets for connection to the L to and from Center City. We will continue to provide updates as they are available. 

We recognize that this ongoing closure poses a significant inconvenience for our customers. We are acting out of an abundance of caution to ensure the tunnel is safe to reopen for service. This closure is unrelated to planned preventative maintenance work that took place this summer during the annual trolley tunnel blitz.

Earlier this fall, SEPTA replaced a vehicle part on each trolley called a “slider” that connects the vehicles to the overhead wire on most of the T trolley fleet – replacing 3-inch sliders with 4-inch sliders. We took this action to reduce maintenance costs as we continue to maintain aging vehicles. Evidence from peer agencies and testing performed by SEPTA suggested this change would reduce wear and tear on carbon pieces that sit within the sliders, cutting maintenance costs since they would need to be replaced less frequently.

The replacement of 3 inch sliders (l.) with 4 inch sliders (r) caused unexpected damage to overhead infrastructure in the trolley tunnel.

Unfortunately, soon after the old sliders were replaced, there were two major incidents in the tunnel that led to evacuations: On Oct. 14, 150 passengers were evacuated after four trains were stranded in the tunnel, and a second incident on Oct. 22 led to the evacuation of 300 passengers.

Upon our investigation of the incidents, it became apparent that the sliders caused damage to the overhead infrastructure. We re-installed the 3-inch sliders on all vehicles. As we further assessed the damage, we closed the tunnel from Nov. 7 to 13, and made repairs to the overhead infrastructure. However, after reopening on Nov. 13, additional issues were identified related to the damage caused by the sliders, which caused us to close the tunnel again.

SEPTA crews have been working around the clock to make the additional repairs, such as using a special tool to smooth out the wires so trolleys can operate without incident. We are addressing these issues through a calculated action plan, using data from pilot cars that have been running in the tunnel throughout the closure. However, it is not yet clear when the issues will be resolved and the tunnel will be able to safely reopen.

Repairs are being made to significant damage in the overhead infrastructure throughout the five-mile trolley tunnel.

As we work through these matters, we are working closely with the Federal Transit Administration, which on Oct. 31 ordered SEPTA to inspect the entire overhead catenary system that powers our D, G, and T trolleys. This order followed an unrelated Sept. 25 pantograph incident on the D.

SEPTA will continue to provide updates as more information is available about the projected reopening of the tunnel.

Again, we sincerely apologize for this disruption and appreciate your patience and understanding as we work to deliver the safe service our riders deserve.