Allegheny Valley Expressway, North Street, Broad Street, Brookville Street, Allegheny Boulevard, Main Street

Direction:

North/South

Southern Terminus:

Parkway North (I-279) and Veterans Bridge (I-579) in Pittsburgh

Northern Terminus:

US 219 in Brockway

Counties:

Allegheny, Butler, Armstrong, Clarion, Jefferson

Signed:

Yes

PA 28 is a diagonal route extending to the northeast from Pittsburgh. It begins on the North Shore at the interchange of the Parkway North (I-279) and the approach to the Veterans Bridge (I-579). The first section is the Allegheny Valley Expressway, an expressway running along the north side of the Allegheny River. Heading out of Pittsburgh, it has an interchange with the Pennsylvania Turnpike (I-76) and then continues northeast to Kittanning, where the expressway ends at US 422.

In this area, US 422 is also an expressway, and PA 28 follows it to the east. It is joined by PA 66 at the next exit. At the last exit before the expressway ends, US 422 splits off, while PA 28/PA 66 continues straight ahead. It narrows down to become a two-lane undivided road and continues northeast to New Bethlehem. There, PA 66 splits off to the north, while PA 28 continues northeast to Brookville.

In Brookville, PA 28 turns east to follow US 322 through the downtown area. Heading out of town, the two routes split. PA 28 passes through an interchange with I-80 and then continues northeast to Brockway, where it ends at US 219.