The Southwestern Pennsylvania Commission (SPC) MPO includes ten counties in southwestern Pennsylvania : Allegheny, Armstrong, Beaver, Butler, Fayette, Greene, Indiana, Lawrence, Washington, and Westmoreland Counties as well as the City of Pittsburgh.  The SPC activities support the operation, maintenance and improvement of a multi-faceted transportation system that provides a strong backbone for personal and freight travel.


Major Corridors within the region include:

Major East-West Corridor

I-70, I-76, I 376

Major North-South Corridor

I-79, and the Mon-Fayette Expressway


The SPC region is well served by eleven public transportation service providers.  These are Port Authority of Allegheny County (PAAC), Mid Mon Valley Transit Authority (MMVTA), Beaver County Transit Authority (BCTA), the City of Washington Transit (WCT), Butler City-Township Joint Municipal Transit Authority (BTA), Indiana County Transit Authority (Indigo), Mid-County Transit Authority (Town & Country Transit), Westmoreland County Transit Authority (WCTA), Fayette Area Coordinated Transportation (FACT), New Castle Area Transportation Authority (NCATA), and the Southwestern Pennsylvania Commission (CommuteInfo Program).  PAAC Transit is the regions’ largest and a primary provider of intra-city public transportation services.  Port Authority’s North Shore Connector now extends the Light Rail system from Pittsburgh’s Golden Triangle under the Allegheny River to the North Shore.



Pittsburgh International Airport (PIT) is a world-class facility that serves more than 8 million travelers annually.  The airport is served by 12 air carriers and their subsidiaries.  Several air cargo carriers also operate from this facility.  The region’s other 16 public airports provide additional services for local travelers and support a thriving general aviation community.  The Arnold Palmer Regional Airport in Latrobe also supports commercial aviation service.


Rail Freight

Southwestern Pennsylvania is served by three Class I railroads: CSX, Norfolk Southern (NS) and Canadian National (CN), as well as

16 regional and short-line railroads along more than 1,300 miles of track. NS operates the region’s largest truck intermodal center at Pitcairn.  Canadian National has trackage rights into a relatively new intermodal facility in New Stanton, Westmoreland County.


Water Freight

The region’s river system supports Pittsburgh’s status as one of the nation’s largest inland ports.  Coal barges traveling the three major rivers provide fuel for the region’s power plants and for export. Major lock and dam improvements underway on the Monongahela River system will have a significant impact on operating efficiency in this corridor when these projects are completed.  The Upper Ohio Navigation Study, designed to assess the infrastructure condition and rehabilitation needs of the locks and dams on the Upper Ohio River, including the Emsworth, Dashields and Montgomery Locks and Dams in the SPC region, is currently underway.  SPC participates in study activities as a member of the Inter-Agency Working Group.


Transportation Program- First Four Years (2013-2016)

To maintain and improve the existing transportation system in SPC, several key transportation projects are included in first four years of the 2013-2024 Twelve Year Transportation Program.  Some of these key projects include:

· Butler Street Bridge Replacement

· PA 28 Widening from Troy to 31st Street

· PA 28 Widening from I-579 to East Ohio Street

· PA 88/51 Bridge/Safety Improvements

· West Carson Street Viaduct Rehabilitation

· Library Road Bridge Replacement

· Masontown Bridge Replacement

· US 19 Safety Improvements

· Bailey’s Crossroads Intersection Improvements

· PA 56 South Brush Valley Bridge Replacement and Roadway Realignment

· US 119 Homer City North Rehabilitation

· Belle Vernon Bridge Replacement

· B&O Railroad Bridge Replacement

· PA 519/SR 1055 Intersection Improvements

· US 119/PA 819 Interchange Reconstruction

· Derry Borough Bridge Replacement

· PA 982 over US 30 Bridge Replacement


Transportation Program- Second Four Years (2017-2020)

Due to the cost and timing of projects in the first four years of the 2013-2024 Twelve Year Transportation Program, several projects will overlap and continue in the second four years of the Program.  Some of these key projects include:

· Liberty Bridge and Ramps Preservation/Painting

· Bellevue Avenue Bridge Rehabilitation

· 28th Street Bridge Rehabilitation

· Swinburne Bridge Rehabilitation

· South Negley Avenue Bridge Replacement

· Balls Bend 3R Roadway Realignment/Resurfacing

· PA 21/Thompson Crossing to Mall Entrance Widening

· Cast Iron Bridge Rehabilitation

· PA 31 at Exit 9 – Donegal Roadway Widening

· US 119 over Jacks Run Bridge Replacement

· PA 981 at Kennametal Roadway Restoration


Transportation Program- Interstate Transportation Projects

· I-376/I-79 to Fort Pitt Tunnel

· I-79/US 422 Interchange

· I-70 at PA 481 Interchange

· I-70 - Bentleyville Interchange

· I-70 : I-79 Southbound and Northbound to PA 136 Interchange

· I-70 – South Junction to PA 519

· I-70 at PA 31 Interchange

· I-70 at Yukon Interchange

· I-70 Interchange at New Stanton