Pennsylvania Route 173

Pennsylvania Route 173
Route information
Maintained by PennDOT
Length	45.7 mi[1] (73.5 km)
Major junctions
South end	PA 8 near Slippery Rock
Major intersections	I-80 near Grove City
North end	PA 27 near Cochranton
Location
Country	United States
State	Pennsylvania
Counties	Butler, Mercer, Crawford
Highway system
Pennsylvania State Route System Interstate US State Scenic Legislative
← PA 172 → PA 174

Pennsylvania Route 173 (PA 173) is 45.7-mile-long (73.5 km) state highway located in western Pennsylvania, running from PA Route 8 south of Slippery Rock in Butler County, to PA Route 27 north of Cochranton in Crawford County.