Ohio State Route 821

State Route 821 marker
State Route 821
Route information
Maintained by ODOT
Length48.85 mi[1][2][3] (78.62 km)
Existed1971[4][5]–present
Major junctions
South end SR 60 near Marietta
Major intersections I-77 near Marietta
I-77 in Belle Valley
North end I-77 / SR 209 / CR 35 in Byesville
Location
CountryUnited States
StateOhio
CountiesWashington, Noble, Guernsey
Highway system
  • Ohio State Highway System
← SR 814→ SR 822

State Route 821 (SR 821) is a north–south state highway in the southeastern portion of the U.S. state of Ohio. A state-maintained section of the old US 21, its southern terminus is at SR 60 approximately 2 miles (3.2 km) north of Marietta, and its northern terminus is at I-77 in Byesville, along with the eastern terminus of SR 209. The route is entirely undivided surface road, and is much less direct than the newer I-77 which supplanted it as a through route. As the interstate was being built, the designation of US 21 was moved to the freeway before Ohio wholly decommissioned the now-superfluous U.S. route. SR 821 was designated about two years after US 21 was moved onto I-77 in southeastern Ohio.

  1. ^ Ohio Department of Transportation. "Technical Services Straight Line Diagrams: SR 821, Washington County" (PDF). Archived from the original (PDF) on 2012-05-07. Retrieved 2011-09-22.
  2. ^ Ohio Department of Transportation. "Technical Services Straight Line Diagrams: SR 821, Noble County" (PDF). Archived from the original (PDF) on 2012-05-07. Retrieved 2011-09-22.
  3. ^ Ohio Department of Transportation. "Technical Services Straight Line Diagrams: SR 821, Guernsey County" (PDF). Archived from the original (PDF) on 2012-05-07. Retrieved 2011-09-22.
  4. ^ Cite error: The named reference ODOT1969_map was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference ODOT1971_map was invoked but never defined (see the help page).