The I-279/Truck US 19 and US
22/US 30 duplexes join for a mile through Pittsburgh in Allegheny
County. The southern half mile of the quadruplex is joined by US
19 in the state's only quintuplex.

Jeff Kitsko 11/7/03
Southbound on I-279/Truck US 19 nearing the south end of Parkway
North. The left exit leads to I-376/US
22/US 30 east.

Denny Pine 2003
Southbound on I-279/Truck US 19 (Parkway North) at the interchange
with I-376/US 22/US 30 (Parkway
East). Straight ahead then is I-279/Truck US 19/US 22/US 30 (Parkway
West). I-376 ends at the left, and US 22/US 30 merges with I-279/Truck
US 19 as the expressway climbs over the Monongahela River on the Fort
Pitt Bridge.

Denny Pine 2003
In the other direction, I-279/Truck US 19 north splits from US
22/US 30 east and I-376 east begins at the north end of the Fort
Pitt Bridge.
Interstate 279 and United States Truck Route 19 join for six miles
through Pittsburgh in Allegheny County. The northern 5 miles are covered
here. The southern mile of the duplex is joined by US
22/US 30 for a quadruplex and partly by US
19 for a quintuplex.

Denny Pine 2003
Southbound on Truck US 19/McKnight Road where Truck US 19 exits to
join I-279 south. That exit is just ahead at the overpass. The foreground
guide sign clarifies the routing of Truck US 19, which gets little
mention along the 6-mile multiplex as the minor route with I-279 and
US 22/US 30.