Pennsylvania Route 173

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PA Route 173

Length:

46 mi^[1] (74 km)

Formed:

1961

South end:

PA 8 4 mi. s. of Slippery Rock

Major
junctions:

I-80 3 mi. n. of Grove City

North end:

PA 27 7½ mi. n. of Cochranton

Counties:

Butler, Mercer, Crawford

Pennsylvania State Routes
< PA 171		PA 174 >
Legislative

Pennsylvania Route 173 is located in western Pennsylvania, running from PA Route 8 4 miles south of Slippery Rock in Butler County, to 7½ miles north of Cochranton in Crawford County.

1 Route description
2 Communities along the route
3 Major intersections
4 Attractions
5 History
6 Miscellanea
7 References
8 External links

[edit] Route description

[edit] Butler County

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

[edit] Mercer County

After entering Mercer County, Route 173 continues northerly almost 3.5 miles to the borough of Grove City. The route intersects with PA Route 58, and the two duplex northeastward 0.2 miles. This duplex ends at the intersection of PA Route 208, where Routes 173 and 208 duplex northward – for about 1/3 of a mile, the northbound and southbound lanes run on parallel one-way streets through the downtown area. About 0.4 miles later, the duplex ends, Route 173 continues north, and leaves the borough. The route interchanges with I-80 about 2.5 miles later, and then intersects with PA Route 965 about 6 miles after that at the village of Perrine’s Corners.

Route 173 enters the borough of Sandy Lake 4 miles later, where it forms a brief duplex with US 62; the duplex ends at the eastern terminus of PA Route 358. Route 173 leaves the borough, and just over 4 miles 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 north, and then crosses the county line just over a mile after that.

[edit] Crawford County

A little more than 2 miles 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 later, after leaving the borough, it intersects with the current alignment of US 322. Not quite 2 miles later, the route passes through the village of Kasters Corners, and then runs another 5 miles before its northern terminus at PA Route 27.

[edit] Communities along the route

[edit] Major intersections

County	Location	Mile	Road(s)	Notes
Butler	Brady Township	0.0	PA 8
	Slippery Rock	4.7	PA 108 PA 258	Western terminus of PA 108/PA 173 duplex; southern terminus of PA 258.
	Slippery Rock	5.0	PA 108	Eastern terminus of duplex.
Mercer	Grove City	11.6	PA 58	Eastern terminus of duplex.
		11.8	PA 58 PA 208	Eastern terminus of PA 58/PA 173 duplex; southern terminus of PA 173/PA 208 duplex.
		12.5	PA 208	Northern terminus of duplex.
	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 duplex.
	Sandy Lake	25.6	US 62 PA 358	Northern terminus of duplex; eastern terminus of PA 358.
	New Lebanon	29.9	PA 285	Former alignment of PA 285 at Georgetown Road.
Crawford	Fairfield Township	37.5	PA 285	Eastern terminus of PA 285.
	Cochranton	38.1	US 322	Former alignment of US 322 at Franklin Street.
	Wayne Township	38.7	US 322
	Randolph Township	45.6	PA 27

Legend
Crossing, no access	Concurrency termini	Decommissioned	Unconstructed	Closed

[edit] Attractions

[edit] 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]