Ohio State Route 691

State Route 691 marker
State Route 691
Route information
Maintained by ODOT
Length10.29 mi[1] (16.56 km)
Existed1938–present
Major junctions
South end SR 56 near New Marshfield
North end US 33 / SR 78 in Nelsonville
Location
CountryUnited States
StateOhio
CountiesAthens
Highway system
  • Ohio State Highway System
SR 690 SR 692

Ohio State Route 691 (SR 691) is a north–south state route in southern Ohio. The entirety of SR 691 is within Athens County. Its southern terminus is at SR 56 about 1.5 miles (2.4 km) northwest of New Marshfield, and its northern terminus is at an interchange with U.S. Route 33 (US 33) and SR 78 in Nelsonville.

  1. ^ "DESTAPE - Athens County" (PDF). Ohio Department of Transportation. August 30, 2017. Retrieved May 23, 2020.