Pennsylvania Route 173
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Pennsylvania Route 173 is 45.7-mile-long 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.
PA 173 northbound past PA 108 in Slippery Rock
Pennsylvania Route 8
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Pennsylvania Route 8 is a major 148.6-mile-long (239.1 km) state route in western Pennsylvania. Officially, PA 8 is named the William Flinn Highway.
PA 8 is a major street in downtown Butler.
PA 8 northbound past PA 208 in Barkeyville
PA 8/PA 27 through Titusville
PA 8 Bus. southbound in Oil City