Ohio State Route 521

State Route 521 marker
State Route 521
Route information
Maintained by ODOT
Length13.62 mi[1] (21.92 km)
Existed1937–present
Major junctions
West end SR 37 in Delaware
Major intersections
East end SR 656 / CR 52 in Olive Green
Location
CountryUnited States
StateOhio
CountiesDelaware
Highway system
  • Ohio State Highway System
SR 520 SR 522

State Route 521 (SR 521) is an east–west state highway in central Ohio. Existing entirely within Delaware County, the western terminus of SR 521 is at SR 37 in Delaware. Its eastern terminus is at SR 656 in the hamlet of Olive Green, located approximately five miles (8.0 km) north of Sunbury.

  1. ^ "DESTAPE - Delaware County" (PDF). Ohio Department of Transportation. June 24, 2015. Retrieved November 17, 2015.