Pennsylvania Route 58

PA Route 58
Route information
Maintained by PennDOT
Length:	71.2 mi (114.6 km)
Major junctions
West end:	SR 5 near Jamestown
East end:	PA 68 in Sligo
Location
Counties:	Mercer, Butler, Armstrong, Clarion
Highway system
Pennsylvania State Route System Interstate US State Scenic Byways Legislative ← PA 56 PA 59 → ← PA 456 PA 458 PA 462 →

PA Route 458
Location:	Greene Township-Jamestown
Length:	3.0 mi (4.8 km)
Existed:	1930–1946

Pennsylvania Route 58 (PA 58) is located in Western Pennsylvania, running 71.2 miles from the Ohio state line 3 miles (4.8 km) west of Jamestown in Mercer County to Sligo in Clarion County.

PA 58 travels eastward from the Ohio state line in northwestern Mercer County just over 4 miles (6.4 km) to the borough of Jamestown, where, after passing through a low-clearance tunnel beneath an abandoned railroad right-of-way, it intersects with US 322. The two routes join together and continue eastward nearly 0.3 miles (0.48 km) where US 322 leaves northward. PA 58 continues eastward, then turns southeasterly, and about 6 miles (9.7 km) later, joins PA Route 18 just north of the Greenville borough line. The concurrency continues 0.4 miles (0.64 km) into the borough to its junction with PA Route 358. The three routes form a concurrency and head westward – this segment is what is known as a wrong way concurrency, because PA 58 is signed east at the same time that Route 358 is signed west. The concurrency lasts only a quarter mile, and then PA 58 leaves the concurrency, heading south-southeast nearly 15 miles (24 km) to the borough of Mercer. Here, the route first meets the US 19/US 62 concurrency. The three routes form a concurrency south 0.2 miles (0.32 km) to the intersection of PA Route 258. At this complex intersection, the concurrency ends, US 62 continues westward, concurrent with Route 258, US 19 continues south, and Routes 58 and 258 join to the east. Also at this point, the PA 58/PA 258 concurrency is split – eastbound follows S. Diamond St., and westbound follows N. Diamond St. in the middle of town. At the east end of the “square,” the concurrency ends as Route 258 heads southward and PA 58 continues east, then later turns southeast. It crosses both I-80 and I-79 near the interchange of the two interstates, just over 4 miles (6.4 km) from Mercer, and enters the borough of Grove City about 4.5 miles (7.2 km) later. In Grove City, the route intersects with the southern terminus of the PA Route 173/PA Route 208 concurrency, and overlaps with Route 173, continuing southeast. About 0.3 miles (0.48 km) later, the concurrency ends; Route 173 continues south, and PA 58 continues southeast just over 3 miles (4.8 km) to the Butler county line after spending 39 miles in Mercer County.

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Wikipedia