Route information | ||||
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Maintained by PennDOT | ||||
Length | 15.916 mi[1] (25.614 km) | |||
Major junctions | ||||
West end | SR 304 at the Ohio state line near West Middlesex | |||
I-376 in West Middlesex | ||||
East end | PA 158 in Mercer | |||
Location | ||||
Country | United States | |||
State | Pennsylvania | |||
Counties | Mercer | |||
Highway system | ||||
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Pennsylvania Route 318 (PA 318) is a 15.9-mile-long (25.6 km) state highway located in Mercer County, Pennsylvania. The western terminus is at the Ohio state line in Shenango Township near West Middlesex where the road continues as Ohio State Route 304. The eastern terminus is at PA 158 in Mercer.