Pennsylvania Route 173

PA Route 173
Route information
Maintained by PennDOT
Length:	46 mi[1] (74 km)
Existed:	1961 – present
Major junctions
South end:	PA 8 4 mi. s. of Slippery Rock
	I-80 3 mi. n. of Grove City
North end:	PA 27 7½ mi. n. of Cochranton
Location
Counties:	Butler, Mercer, Crawford
Highway system
Roads in Pennsylvania Interstate • US • State • Legislative ← PA 172 PA 174 →

Pennsylvania Route 173 is located in western Pennsylvania, running from PA Route 8 4 miles (6.4 km) south of Slippery Rock in Butler County, to 7.5 miles (12.1 km) north of Cochranton in Crawford County.

Route description

Route 173 is designated as part of Washington’s Trail between its southern terminus at PA Route 8 and Slippery Rock.^[1]

Butler County

From the village of Stone House at PA Route 8, Route 173 heads north-northeast in Butler County about 4 miles (6.4 km) to the borough of Slippery Rock, home to Slippery Rock University. Near the north end of town, the route intersects with PA 108 at the southern terminus of PA Route 258. Routes 108 and 173 overlap, traveling northeasterly for 0.3 miles (0.48 km), where the concurrency ends and Route 173 turns northward. About 3 miles (4.8 km) later, the route crosses the county line.

Mercer County

After entering Mercer County, Route 173 continues northerly almost 3.5 miles (5.6 km) to the borough of Grove City, the site of Wendall August Forge and Grove City College. The route intersects with PA Route 58, and the two overlap northeastward 0.2 miles (0.32 km). This concurrency ends at the intersection of PA Route 208, where Routes 173 and 208 concurrency northward – for about 0.33 miles (0.53 km), the northbound and southbound lanes run on parallel one-way streets through the downtown area. About 0.4 miles (0.64 km) later, the concurrency ends, Route 173 continues north, and leaves the borough. The route interchanges with I-80 about 2.5 miles (4.0 km) later, and then intersects with PA Route 965 about 6 miles (9.7 km) after that at the village of Perrine’s Corners.

Route 173 enters the borough of Sandy Lake 4 miles (6.4 km) later, where it forms a brief concurrency with US 62; the concurrency ends at the eastern terminus of PA Route 358. Route 173 leaves the borough, and just over 4 miles (6.4 km) later, intersects with Georgetown Rd., which is the former alignment of PA Route 285 in the borough of New Lebanon. The route passes through the village of Milledgeville 4 miles (6.4 km) north, and then crosses the county line just over 1 mile (2 km) after that.

Crawford County

A little more than 2 miles (3.2 km) after entering Crawford County, Route 173 turns northeasterly as it intersects with the eastern terminus of PA Route 285, and then enters the borough of Cochranton shortly thereafter. In Cochranton, the route intersects with the former alignment of US 322, and then 0.6 miles (0.97 km) later, after leaving the borough, it intersects with the current alignment of US 322. Not quite 2 miles (3.2 km) later, the route passes through the village of Kasters Corners, and then runs another 5 miles (8.0 km) before its northern terminus at PA Route 27.

History

• 1926 – The segment from Stone House to Slippery Rock was originally designated PA Route 8^[1]
• 1941 – The entire alignment was designated PA Route 78^[1]
• 1961 – Designation changed to PA Route 173^[1]

Major intersections

County	Location	Mile	Destinations	Notes
Butler	Brady Township	0.0	PA 8
	Slippery Rock	4.7	PA 108 PA 258	Western terminus of PA 108/PA 173 concurrency; southern terminus of PA 258.
		5.0	PA 108	Eastern terminus of concurrency.
Mercer	Grove City	11.6	PA 58	Eastern terminus of concurrency.
		11.8	PA 58 PA 208	Eastern terminus of PA 58/PA 173 concurrency; southern terminus of PA 173/PA 208 concurrency.
		12.5	PA 208	Northern terminus of concurrency.
	Wolf Creek Township	15.1	I-80	Exit 24 (I-80)
	Worth Township	21.2	PA 965
	Sandy Lake	25.5	US 62	Southern terminus of concurrency.
		25.6	US 62 PA 358	Northern terminus of concurrency; eastern terminus of PA 358.
	New Lebanon	29.9	Georgetown Road	Former routing of PA 285
Crawford	Fairfield Township	37.5	PA 285	Eastern terminus of PA 285.
	Cochranton	38.1	Franklin Street	Former routing of US 322
	Wayne Township	38.7	US 322
	Randolph Township	45.6	PA 27
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

1. ^ ^{a b c d e} Pennsylvania Highways - Pennsylvania Route 173

External links

• http://www.state-ends.com/paends/state/173.html