Interstate 376 Business

I-376 Bus. westbound approaching University Boulevard in Moon Township

I-376 Bus. diverges from I-376 at a partial interchange in Findlay Township, heading due south as a continuation of the Beaver Valley Expressway with a wide grass median. The road immediately turns east, meeting Flaugherty Run Road at a diamond interchange which allows indirect access to the remaining movements for I-376. Heading east, I-376 Bus. comes to a diamond interchange with International Drive, which provides access to three of the cargo areas of Pittsburgh International Airport. Further east, the median narrows and the road curves southeast before coming to a signalized intersection with Hangar Road, which connects to the airport service area, marking the end of the Beaver Valley Expressway.

I-376 Bus. turns east again as a four-lane, at-grade limited-access road before intersecting University Boulevard to the north and Horizon Drive to the south. This intersection is the beginning of the Airport Parkway, at which point a wide grass median begins again. The third and final signalized intersection on the route is with Airside Drive, leading to more of the airport's cargo areas. The median narrows again as I-376 Bus. curves south-southeast as a freeway once again. The road intersects Thorn Run Road and then Ewing Road before ending at I-376. The Airport Parkway name continues onto I-376 to the east.

The Airport Parkway section of the route was built in the early 1950s as a four-lane, at-grade limited-access road connecting what was then Beers School Road (today University Boulevard) at the former Pittsburgh International Airport terminals to McClaren Road at the site of the current eastern terminus of the route. In 1962, the road became part of an extended PA 60, which continued north along what is now University Boulevard to PA 51.[3]

Construction began in the late 1960s on the Beaver Valley Expressway section of the road, which opened by 1971. At the time, the freeway abruptly ended at a stub just east of the current International Drive interchange. Traffic was diverted off the mainline onto a temporary connector road which fed into the current at-grade four-lane divided portion of the route. Original plans called for the Beaver Valley Expressway to be extended east to directly connect to the freeway portion of the Airport Parkway. This plan was canceled in the 1970s,[4] causing a short gap in the freeway portion of PA 60.

In 1992, the Southern Expressway opened, connecting to the new Pittsburgh International Airport terminal.[5] The PA 60 designation was rerouted onto it, creating PA 60 Bus. in its place.

I-376 Bus. shield in Moon Township

In order to increase the accessibility of the cargo areas, International Drive was built, and with it came a new interchange. The project also involved reconstructing the road to the east of the interchange, removing the stub of the canceled Beaver Valley Expressway extension and improving the transition from freeway to limited-access highway. Construction began in 2001 and finished in 2003.[6]

I-376 was extended to I-80 near Hermitage in 2009, and PA 60 was cut back to its current northern terminus. As a result, PA 60 Bus. was decommissioned and replaced with I-376 Bus.

The entire route is in Allegheny County.

Location	mi	km	Destinations	Notes
Findlay Township	0.00	0.00	I-376 west – Beaver	Western terminus of I-376 Business; access only from eastbound and to westbound I-376
Findlay Township–Moon Township line	1.13	1.82	Flaugherty Run Road east to I-376 – Pittsburgh International Airport	Interchange; I-376 not signed eastbound
Moon Township	2.21	3.56	International Drive	Interchange; access to cargo areas 1, 2, and 3
	2.99	4.81	Halverson Drive	Eastbound entrance only
	3.62	5.83	Hangar Service Road	At-grade intersection; access to airport service area and airport maintenance facilities
	3.87	6.23	Orange Belt (University Boulevard) / Horizon Drive to PA 51 – Sewickley, Coraopolis, Robert Morris University	At-grade intersection; western end of concurrency with Orange Belt; no left turn westbound onto Horizon Drive
	4.02	6.47	Airside Drive	At-grade jughandle intersection; access to Airside Business Park and cargo areas A and B
	4.59	7.39	Thorn Run Road – Sewickley, Coraopolis, Pittsburgh IAP Air Reserve Station	Interchange; access to Airport Office Park
	5.82	9.37	Ewing Road – Coraopolis	Interchange
	6.88	11.07	I-376 east / Orange Belt / Montour Run Road – Pittsburgh	Eastern terminus of I-376 Business; eastern end of concurrency with Orange Belt
			I-376 west to PA Turnpike 576 – Pittsburgh International Airport
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus       Incomplete access

•  U.S. Roads portal
•  Pennsylvania portal

Wikimedia Commons has media related to Interstate 376 Business.

• Pennsylvania Highways: I-376 Business Routes
• Business Loop I-376 at AARoads.com