Ohio State Route 170

State Route 170 marker

State Route 170
Route information
Maintained by ODOT
Length: 36.64 mi[1] (58.97 km)
Existed: 1924 – present
Major junctions
South end: US 30 / SR 7 / SR 11 near Calcutta
  I680 in Youngstown
North end: US 62 in Youngstown
Location
Counties: Columbiana, Mahoning
Highway system
SR 169SR 171
Intersection with State Route 154 in Negley

State Route 170 (SR 170) is a northsouth running state route located in Mahoning and Columbiana counties in northeast Ohio. It runs within a few miles of the Pennsylvania border for much of its route as it passes though the eastern parts of the two counties. The southern terminus is at an interchange with U.S. 30, State Route 7, and State Route 11 near Calcutta, and the northern at U.S. 62 in Youngstown. ODOT extended the northern terminus from the previous point of Interstate 680, changing signs on July 16 and 17, 2008.[2]

History

1924

Original state highway.[3]

1924

Originally routed from East Palestine to Petersburg.[3]

1931

Extended to East Liverpool along previous unnumbered road.[3]

1962

Extended to 1-mile (1.6 km) north of North Kingsville along previous route 90.[3]

1970

Truncated at 3 miles (4.8 km) north of Poland.[3]

2008

Extended 3 miles (4.8 km) to U.S. 62 in Youngstown along the former Route 625.[2][4]

Major junctions

CountyLocationmikmDestinationsNotes
ColumbianaSt. Clair Township0.000.00 US 30 / SR 7 / SR 11 / Substation RoadInterchange
Middleton Township11.1817.99 SR 154 east Beaver Falls, PASouthern end of SR 154 concurrency
11.2418.09 SR 154 west LisbonNorthern end of SR 154 concurrency
East Palestine14.5723.45 SR 46 north / SR 558 west (Main Street)Southern terminus of SR 46; eastern terminus of SR 558
14.8223.85 SR 165 east (Taggart Street)Southern end of SR 165 concurrency
Unity Township16.7026.88 SR 14 east / North Market StreetSouthern end of SR 14 concurrency
17.2427.75 SR 14 west / SR 165 / Brookdale Avenue ColumbianaNorthern end of SR 14 / SR 165 concurrency
MahoningPetersburg21.2334.17 SR 617 west (Garfield Road)Southern end of SR 617 concurrency
21.3234.31 SR 617 east (Youngstown-Pittsburgh Road) / CR 8 (East Garfield Road)Northern end of SR 617 concurrency
New Middletown26.0441.91 SR 630 east / CR 30 (East Calla Road)Western terminus of SR 630
Poland30.3348.81 SR 616 north (Water Street)Southern terminus of SR 630
30.3948.91 US 224 (Center Road)
Youngstown33.5553.99 I680 Youngstown, PittsburghExit 9 (I-680)
35.3356.86 SR 7 (Market Street)
36.6458.97 US 62 (Canfield Road / Glenwood Avenue)
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References