Some Port Authority bus routes will be affected by the closing of the Mount Washington Transit Tunnel at 6 p.m. Sunday. Buses can't use the tunnel between then and the end of service Sunday night while workers conduct rail maintenance.
During the closure, a small number of bus routes will be detoured inbound via Allentown and outbound via the Wabash Tunnel. Riders should allow for extra travel time due to the detour.
T service will still use the tunnel but will single-track in the affected area, with all inbound service using the outbound platforms at South Hills Junction and Station Square. Outbound T service will stick to regular schedules. Delays of around five to eight minutes may occur due to single-tracking.