Saw Mill Run Boulevard Bridge Detours

The Saw Mill Run Boulevard Bridge, a Port Authority-owned and maintained bridge that carries the South Busway over Saw Mill Run Boulevard in Pittsburgh's Mt. Washington neighborhood, closed to both bus and light-rail traffic on February 4 when the bridge unexpectedly shifted after water in the concrete support structure froze during a winter storm.

On Saturday, May 14, the bridge reopened to bus traffic. Light-rail vehicles are expected to return to using the bridge by the end of the month, after track work at Fallowfield Station in Beechview is completed. That work began on May 3.

Red Line service will continue to detour. Please see below for updated bus shuttle information.

Blue Line and Silver Line service are not affected.

Detours may be updated so please check back with this page. If you have any questions, Customer Service is available at 412-442-2000, on Twitter @PghTransitCare, and on LiveChat.

Red Line Detour

Click image to enlarge.

Please allow for additional travel time.

Until further notice, Red Line service will detour over the Blue Line from Willow Station to Downtown. Red Line service from South Hills Village to St. Anne’s, and South Hills Junction to Allegheny Station is not affected.

A rail shuttle is serving all Red Line stops from Overbrook Junction to Potomac Station. Frequency depends on operator availability.

• Overbrook Junction (exit to transfer to Blue, Silver or detoured Red Line service at nearby Willow Station)
• Castle Shannon
• Arlington
• Poplar
• Mt. Lebanon
• Dormont Junction
• Potomac (exit to transfer to the bus shuttle serving stops from Potomac to Station Square)

Bus shuttles are serving stops from Potomac Station to Station Square. Frequency depends on operator availability.

Inbound Bus Shuttle Stops (to Station Square)

Note: Effective May 14, the Red Line bus shuttle can now serve Dawn and Palm Garden. Additionally, instead of Palm Garden (Warrington) Ramp at South Busway (Island), the bus shuttle will serve West Liberty Ave at South Busway Ramp. See below for more info.

• Broadway at Potomac
• Broadway opp Stevenson Platform
• Broadway at Shiras (Island)
• Broadway at Belasco (Island)
• Broadway at Hampshire (Island)
• Broadway at Fallowfield
• Cape May at Hampshire (Westfield)
• West Liberty Ave at South Busway Ramp (Island) (existing stop # 6298, also served by inbound bus route 41)
• South Busway at Dawn Stop
• South Busway at Palm Garden Stop
• South Busway at South Hills Junction (existing stop # 6095, also served by inbound bus routes 39, 40, 41, Y1, Y45, Y46, Y47, Y49)
• South Busway Bus Shelter Behind Station Square Station**

**PLEASE NOTE: Due to the ongoing work in the Mt. Washington Transit Tunnel, Monday-Friday from 8pm-end of service (weather dependent), shuttle buses will be routed around the tunnel and the South Busway Bus Shelter Behind Station Square bus shuttle stop location will CHANGE to East Carson at Smithfield Street Bridge Transit Shelter (existing stop # 11216).

Outbound Bus Shuttle Stops (to Potomac Station)

Note: Effective May 14, the Red Line bus shuttle can now serve Dawn and Palm Garden. Additionally, the bus shuttle will no longer serve West Liberty at Hargrove (Transit Shelter). Please use Dawn Stop instead.

• South Busway Bus Shelter Behind Station Square Station**
• South Busway at South Hills Junction (existing stop # 19685, also served by outbound bus routes 39, 40, 41, 44, Y1, Y45, Y46, Y47, Y49)
• South Busway at Palm Garden Stop
• South Busway at Dawn Stop
• Cape May at Hampshire (Westfield)
• Beechview at Broadway (for Fallowfield and Hampshire)
• Broadway at Belasco
• Broadway at Shiras
• Broadway opp Stevenson Platform
• Broadway at Potomac

What is the best way to get to my stop?

Dormont, Mt. Lebanon and Castle Shannon neighborhoods

• From downtown or South Hills Village: Take Blue, Red or Silver Line service to Willow Station, walk to Overbrook Junction, and transfer to an inbound rail shuttle to complete your journey. Riders from downtown can also exit at South Hills Junction and board an outbound bus shuttle to Potomac Station. At Potomac Station, exit and transfer to an outbound rail shuttle to your destination.
• To Downtown: Take the outbound rail shuttle and exit at Overbrook Junction. Walk to Willow Station and transfer to any inbound Blue, Red or Silver Line rail car.
• To South Hills Village: Take the outbound rail shuttle and exit at Overbrook Junction. Walk to Willow Station and transfer to an outbound Blue or Red Line rail car.
• To Beechview: Board the inbound rail shuttle and exit at Potomac Station to transfer to an inbound bus shuttle.

Beechview neighborhood

• From downtown: Take Blue, Silver or Red Line service to South Hills Junction, exit, and transfer to the outbound bus shuttle that serves stops to Potomac Station.
• To downtown: Board an inbound bus shuttle, and exit at South Hills Junction or Station Square where you may board regular Blue, Silver or Red Line rail service, or bus service.
• To South Hills Village: Board an inbound bus shuttle and exit at South Hills Junction. Board any outbound Blue or Red Line rail service to South Hills Village.
• To Dormont, Mt. Lebanon and Castle Shannon: Board the outbound bus shuttle and exit at Potomac Station. Transfer to an outbound rail shuttle.

Bus Detours

Effective Saturday, May 14, the Saw Mill Run Boulevard Bridge reopened to bus traffic and routes 39, 41, Y1, Y45, Y46, Y47, Y49 returned to using the South Busway.

Please note that the 39-Brookline continues to detour Monday through Friday from 8:30 a.m. to 5 p.m. and Saturdays from 7 a.m. to 5 p.m. due to the temporary closure of Pioneer Avenue for Columbia Gas line replacement work. Click here for more information.