State Route 170 | ||||
---|---|---|---|---|
Route information | ||||
Maintained by ODOT | ||||
Length: | 36.64 mi (58.97 km) | |||
Existed: | 1924 – present | |||
Major junctions | ||||
South end: | US 30 / SR 7 / SR 11 near Calcutta | |||
I-680 in Youngstown | ||||
North end: | US 62 in Youngstown | |||
Location | ||||
Counties: | Columbiana, Mahoning | |||
Highway system | ||||
|
State Route 170 (SR 170) is a north–south 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.
Original state highway.
Originally routed from East Palestine to Petersburg.
Extended to East Liverpool along previous unnumbered road.
Extended to 1-mile (1.6 km) north of North Kingsville along previous route 90.
Truncated at 3 miles (4.8 km) north of Poland.
Extended 3 miles (4.8 km) to U.S. 62 in Youngstown along the former Route 625.