State Route 21 is a relic of an old U.S. Route 21, a major north–south highway that connected greater Cleveland, Ohio, to southern South Carolina. South of Strasburg, Ohio, near the current southern terminus of State Route 21, the designation of U.S. Route 21 was moved to the new Interstate 77 freeway in east-central and southeastern Ohio by the early 1970s and then decommissioned. North of Strasburg, what remained of U.S.
| Attributes | Values |
|---|---|
| rdfs:comment |
|
| foaf:depiction | |
| county | |
| length (μ) |
|
| route end | |
| road end direction |
|
| route junction | |
| route number |
|
| route start | |
| road start direction |
|
| route type abbreviation |
|
| thumbnail | |
| is location of |