Pennsylvania State Route 28 is a north-south highway from Downtown Pittsburgh to the Butler/Allegheny County Line, along the Alexander H. Linsay Memorial Highway. PA St Rt 28 passes through the following town in Allegheny County. Pittsburgh PA St Rt 28 is not multi-plexed in Allegheny County. PA St Rt 28 intersects the following highways in Allegheny County. Interstate 279, at Pittsburgh. TRUCK U.S. Rt. 19, at Pittsburgh. Pennsylvania State Route 8, near Etna. Pennsylvania State Route 910, near Cheswick. Interstate 76, (Pennsylvania Turnpike) near Cheswick. (NO INTERCHANGE) Pennsylvania State Route 366, near Tarentum.
A BGS on NB I-279/TK U.S. Rt. 19. A BGS on SB PA St Rt 28. A road work sign on NB PA St Rt 28. (May, 2004) NB PA St Rt 28 near Etna. NB PA St Rt 28 near Aspinwall. NB PA St Rt 28 near Cheswick. NB PA St Rt 28 near Taretum. A set of guide markers in Tarentum.