Mt. Washington Transit Tunnel Rail Replacement

About the Work

Pittsburgh Regional Transit will close the Mt. Washington Transit Tunnel for about eight months starting on February 23, 2025, to replace more than 1,000 feet of light-rail track, the roadway, and overhead electric lines inside the tunnel between South Hills Junction and Station Square Stations just south of downtown Pittsburgh.

The project is estimated to cost $28 million and is expected to run from February 23, 2025 until October 2025.

Detours

The Mt. Washington Transit Tunnel will be closed to all traffic, including rail and buses.

While the tunnel is closed, Blue Line and Red Line light-rail service will operate about every 15 minutes through Allentown using the tracks along East Warrington and Arlington avenues; PRT will establish a temporary light-rail stop on Warrington Avenue at Allen Street in both directions.

Meanwhile, the Silver Line will be temporarily shortened on weekdays to operate between Library Station and Washington Junction to reduce the number of rail cars operating up the Arlington Avenue hill and through Allentown. Riders traveling to Silver Line stations beyond Washington Junction can transfer from the Blue Line to the Silver Line at Washington Junction. On weekends, the Red, Blue, and Silver lines will operate via Allentown.

PRT will operate a temporary “Subway Local” light-rail route from Station Square to Allegheny Station, which will ensure adequate capacity within the Downtown and North Shore areas . This route will operate about every 35 minutes between 4:45 a.m. and 1:45 a.m. on weekdays, 5:45 a.m. to 1:30 a.m. on Saturdays, and 5:45 a.m. to 11 p.m. on Sundays.



Several bus routes that normally use the Mt. Washington Transit Tunnel will generally travel inbound via Warrington and Arlington avenues. Buses traveling outbound will generally use the Wabash Tunnel, which will be open only in the outbound direction for the entirety of the closure.

39-Brookline        

40-Mount Washington        

41-Bower Hill        

44-Knoxvville        

51L-Carrick Limited        

Y1-Large Flyer        

Y45-Baldwin Manor Flyer        

Y46-Elizabeth Flyer        

Y47-Curry Flyer        

Y49-Prospect Flyer