Ohio State Route 634

State Route 634 marker
State Route 634
Route information
Maintained by ODOT
Length17.95 mi[1] (28.89 km)
Existed1937–present
Major junctions
South end SR 189 / SR 190 in Fort Jennings
Major intersections US 224 near Ottoville
North end SR 15 near Continental
Location
CountryUnited States
StateOhio
CountiesPutnam
Highway system
  • Ohio State Highway System
SR 633 SR 635

State Route 634 (SR 634) is a 17.95-mile-long (28.89 km) state highway in the northwestern portion of the U.S. state of Ohio. The highway runs from its southern terminus at its junction with SR 189 and SR 190 in Fort Jennings to its northern terminus at the intersection of SR 15 nearly 1.5 miles (2.4 km) north of Continental. SR 634 runs entirely within Putnam County and is entirely a two-lane highway.

SR 634 was commissioned in the late 1930s, the northern terminus was in Defiance County. Only parts of the highway was paved when it was commissioned. The last section to be paved was in the early 1950s. The northern terminus was moved to its current location in the late 1960s.

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