Pennsylvania State Route 56 is a east-west highway in Northwestern Westmoreland County. This runs along the Allegheny and Kiskiminetas Rivers. PA St Rt 56 passes through towns in Westmoreland County. New Kensington
East Vandergrift Vandergrift Oklahoma PA St Rt 56 is multi-plexed in Westmoreland County. Pennsylvania State Route 366, in New Kensington. Pennsylvania State Route 356, near Shearersburg. ALT Pennsylvania State Route 66, near Vandergrift. Pennsylvania State Route 66, near Oklahoma. PA St Rt 56 intersects the following highways in Westmoreland County. TRUCK Pennsylvania State Route 56, at New Kensington. Pennsylvania State Route 366, at New Kensington. Pennsylvania State Route 780, at New Kensington. TRUCK Pennsylvania State Route 56, at New Kensington. Pennsylvania State Route 366, at New Kensington. Pennsylvania State Route 356, near Shearersburg. Pennsylvania State Route 356, near Shearersburg. ALT Pennsylvania State Route 66, near West Leechburg. ALT Pennsylvania State Route 66, at East Vandergrift. Pennsylvania State Route 66, at Oklahoma.
Branches of PA St Rt 56 in Westmoreland County. A junction marker on WB PA St Rt 366; EB TK PA St Rt 56.
