U.S. Route 19 Truck
Route information
Auxiliary route of US 19
Maintained by PennDOT
Length	19.4 mi[1] (31.2 km)
Major junctions
South end	US 19 in Mt. Lebanon
Major intersections	PA 51 in Pittsburgh I-376 / US 22 / US 30 in Pittsburgh I-279 in Pittsburgh PA 65 in Pittsburgh I-579 / PA 28 in Pittsburgh I-279 in Pittsburgh
North end	US 19 in McCandless Township
Location
Country	United States
State	Pennsylvania
Counties	Allegheny
Highway system
United States Numbered Highway System List Special Divided Pennsylvania State Route System Interstate US State Scenic Legislative

U.S. Route 19 Truck (US 19 Truck) is a truck route of US 19 located in Western Pennsylvania in Greater Pittsburgh that has a length of 19.4 miles (31.2 km). It is a loop off US 19; the southern terminus located in Mt. Lebanon and the northern terminus in McCandless, connecting to US 19 at both ends. The route is notable for a large, unorthodox interchange with the Penn–Lincoln Parkway (Interstate 376 [I-376]/US 22/US 30) just west of the Fort Pitt Tunnel, where the route joins the parkway and forms several wrong-way concurrencies, including one with its own opposing directions.^[2] North of Pittsburgh, US 19 Truck is called McKnight Road and south of Pittsburgh it carries West Liberty Avenue and Washington Road.

US 19 Truck begins as US 19 enters Mt. Lebanon along Washington Road. US 19 branches northwest to skirt Mt. Lebanon and Dormont, following Cochran Road, while US 19 Truck stays on Washington Road and continues through the centers of those towns. As US 19 Truck enters the southern parts of Pittsburgh, its name becomes West Liberty Avenue as it passes through the Beechview neighborhood. At the south portal of the Liberty Tunnel, US 19 Truck interchanges with Pennsylvania Route 51 (PA 51; Saw Mill Run Boulevard) and joins it, following it north.

After 1.4 miles (2.3 km), US 19 Truck and PA 51 encounter the Penn–Lincoln Parkway, carrying I-376/US 22/US 30, at a complex, unorthodox interchange complex that stretches roughly half a mile (0.80 km) along the parkway and rests just south of the Fort Pitt Tunnel. Mainline US 19 also resides within this interchange, exiting the parkway and traveling north to join PA 51. Here, US 19 Truck joins the parkway.

Northbound US 19 Truck exits PA 51 at a left exit, turning toward the westbound parkway, which also contains a right-in/right-out ramp for Woodville Avenue. The ramp merges into the southbound US 19 mainline ramp, forming a wrong-way concurrency, but remains separated from the Penn–Lincoln Parkway via a Jersey barrier. The ramp travels for roughly half a mile (0.80 km) in this fashion before making a U-shaped curve. Before this ramp passes under the parkway, it merges with southbound US 19 Truck (which exits the Penn–Lincoln Parkway from the Fort Pitt Tunnel), forming a wrong-way concurrency with itself. Mainline US 19 separates after the underpass and travels southbound as Banksville Road, and the ramp (carrying north and south US 19 Truck) curves northward, joining with the northbound US 19 mainline. The ramp now merges into the Penn–Lincoln Parkway, forming four lanes of I-376/US 22/US 30/both directions of US 19 Truck/US 19. After a short stretch, southbound US 19 Truck exits south at the next ramp, removing one lane from the Parkway, and, after passing under PA 51, northbound mainline US 19 exits as well, also removing a lane. The Penn–Lincoln Parkway, now with both directions carrying I-376/US 22/US 30/US 19 Truck and in an orthodox orientation, enter the Fort Pitt Tunnel.

After exiting the Fort Pitt Tunnel, US 19 Truck/I-376/US 22/US 30 cross the Monongahela River on the Fort Pitt Bridge, arriving on the Golden Triangle of Downtown Pittsburgh. The route meets the southern terminus of I-279 here, and I-376/US 22/US 30 head eastward, while US 19 Truck separates from them and joins I-279 on its northward trek. The two routes then cross the Allegheny River on the Fort Duquesne Bridge. North of the bridge, I-279 and US 19 Truck interchange with the southern terminus of PA 65 at exit 1C of I-279. Exit 1B is to PNC Park and exit 1C is for Acrisure Stadium. At exit 1D and 2A, I-279 southbound splits into high-occupancy vehicle (HOV) lanes at the I-279 Interchange. The I-279 interchange involves the northern terminus of I-579 and the southern terminus of PA 28.

North of exit 2B, I-279 has HOV lanes and continues its concurrency with US 19 Truck toward the north. At exit 4, US 19 Truck splits from I-279 and US 19 Truck continues toward the north at-grade as McKnight Road, a frequently congested divided highway known locally as McNightmare Road.^[3] In Ross Township, US 19 Truck interchanges with Babcock Boulevard and shifts toward the northwest. The remainder of the route widens to six lanes and heavily lined with shopping centers and large malls, including North Hills Village, Ross Park Mall, and McCandless Crossing. In McCandless, US 19 Truck interchanges with Ingomar Road. Northwest of Ingomar Road, US 19 Truck turns west, paralleling and crossing Pine Creek before it terminates (ends) at a partial Y interchange with US 19.^[1]

The roadway was signed as US 19 from 1941 to 1948. The route was signed in 1946 as a bypass route for trucks that were not allowed on US 19. In 1948, the southern terminus was moved from Banksville Road to its current location. In 1989, US 19 Truck's designation was moved to I-279 to form a complete US 19 Truck from Mt. Lebanon to Wexford after the parkway north was completed. In 1997, construction began on the interchange at the southern portal of the Liberty Tunnel and opened to traffic on November 20, 1999.^[4]

The entire route is in Allegheny County.

Location	mi[5]	km	Old exit	New exit	Destinations	Notes
Mt. Lebanon	0.0	0.0			US 19 / Yellow Belt (Washington Road / Cochran Road) – Bethel Park	Southern terminus
Dormont					Blue Belt (Potomac Avenue) – Green Tree	Southern end of concurrency with Blue Belt
					Blue Belt (Pioneer Avenue) – Brentwood	Northern end of concurrency with Blue Belt
Pittsburgh					Buses only (South Busway)	Northbound exit and southbound entrance
					PA 51 south (Saw Mill Run Boulevard) / Liberty Tunnel – Downtown, South Side, Uniontown	Interchange; southern end of concurrency with PA 51
					Woodruff Street to PA 837 – Wabash Tunnel, Mount Washington
					I-376 west / US 22 west / US 30 west (Penn Lincoln Parkway) – Carnegie, Pittsburgh International Airport US 19 north / PA 51 north (Saw Mill Run Boulevard) – West End Bridge, Downtown US 19 south (Banksville Road) – Mt. Lebanon Woodville Avenue – West End	Interchange; northern end of concurrency with PA 51; southern end of concurrency with I-376 / US 22 / US 30; exits 69A-C (I-376 / US 22 / US 30) (old exits 5A-C)
			Fort Pitt Tunnel under Mount Washington
			5C	69C	PA 837 north to PA 51 – West End	Southbound exit and northbound entrance
Monongahela River			Fort Pitt Bridge
Pittsburgh			6B	70A	Boulevard of the Allies / Liberty Avenue – PPG Arena	Northbound exit and southbound entrance
			6C	70B	Fort Duquesne Boulevard – Convention Center, Strip District	Northbound exit and southbound entrance
			6A		I-376 east / US 22 east / US 30 east (Penn Lincoln Parkway) – Monroeville I-279 begins	Northern end of concurrency with I-376 / US 22 / US 30; southern end of concurrency with I-279
			6C	1A	Fort Duquesne Boulevard – Convention Center, Strip District	Southbound exit and northbound entrance
Allegheny River			Fort Duquesne Bridge
Pittsburgh			7A	1B	North Shore	No northbound entrance; access to Acrisure Stadium, PNC Park, and Carnegie Science Center
			7B	1C	PA 65 north (Ohio River Boulevard) to US 19	Southern terminus of PA 65
					9th Street	Southbound left exit and northbound entrance
					I-279 south	Southbound exit only
					PPG Arena	Southbound left exit and northbound entrance
			7C	1D	PA 28 north / Chestnut Street / Ohio Street – Etna	Northbound exit and southbound entrance
			8A	2A	I-579 south (Crosstown Boulevard) – Veterans Bridge	Southbound exit and northbound entrance; northern terminus of I-579
			8B	2B	East Ohio Street to PA 28 north	Southbound exit and northbound entrance
			9	3	Hazlett Street	Northbound exit and entrance
			10	4	East Street	Southbound exit and entrance
					I-279 north to I-79 – Erie	North end of concurrency with I-279; I-279 exit 4
					I-279 south – Pittsburgh	Southbound left exit and northbound entrance
					Evergreen Road – Millvale	Northbound access via exit ramp
					Nelson Run Road to Blue Belt	Interchange
Ross Township					Babcock Boulevard – West View, Millvale	Interchange
McCandless					Green Belt (Babcock Boulevard / Peebles Road) to PA 8 / PA 65 – Hampton Township, Emsworth
					Perrymont Road / Babcock Boulevard to US 19 – La Roche University, UPMC Passavant McCandless
					Cumberland Road – La Roche University, UPMC Passavant McCandless
					Yellow Belt (Ingomar Road) – North Park, Hampton, Franklin Park, Ingomar	Interchange; northbound exit and southbound entrance
					Pine Creek Road to US 19 south / Rinaman Road
					US 19 north (Perry Highway) – Wexford	Northern terminus; northbound exit and southbound entrance
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus       HOV only       Incomplete access

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• Multiplexed Roads - U.S. Route 19 Truck junction list