Pittsburgh Regional Transit has been notified by Duquesne Light of their intent to shut down the power to the Mt Washington Transit Tunnel, in an effort to repair an abnormal circuit within the tunnel, will close same to perform work on Sunday evening, October 25, 2026.
Work and the full Transit Tunnel closure will begin Sunday Evening, October 25, 2026, beginning at approximately 5:00 PM continuing until the following morning, Monday October 26, 2026, at around 4:00 AM.
Light rail service will detour via long established Allentown tracks in Warrington and New Arlington Avenues, with a Station Square - Allegheny Station rail shuttle car being made available to and from Station Square Station for free transfer to and from detoured Red, Silver & Blue Line cars.
Buses will detour inbound via the same Allentown streets and to protect all existing outbound stops, will detour outbound via the Wabash Tunnel.
Start: 10/25/2026 — End: 10/26/2026
Standing Detour - Emergency Closure Of Smithfield Street Bridge
On occasion, the historic Smithfield Street Bridge, a vital link for thirteen (13) Pittsburgh Regional Transit bus routes and four routes for two regional transit agencies (FACT, MMVTA) as well as the bus substitution routing for buses replacing light rail service, when the bridge is compromised, either due to scheduled maintenance or emergencies, must use a lengthy and extensive detour until service over the Smithfield Street Bridge is restored.
Closures could be for heavy maintenance of the bridge by PennDOT or due to emergencies such as excessive flooding of the Monongahela River and high waters or by barge strikes on the piers of the bridge, resulting in concerns for its structural integrity until fully inspected.
This detour will be activated by default, usually by police or emergency forces closing the bridge immediately for emergencies.
Start: 01/01/2026 — End: 12/31/2026