Route information | ||||
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Maintained by PennDOT | ||||
Length | 45.7 mi[1] (73.5 km) | |||
Major junctions | ||||
South end | PA 8 near Slippery Rock | |||
I-80 near Grove City | ||||
North end | PA 27 near Cochranton | |||
Location | ||||
Country | United States | |||
State | Pennsylvania | |||
Counties | Butler, Mercer, Crawford | |||
Highway system | ||||
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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.