Ohio State Route 203

State Route 203 (SR 203, OH 203) is a 22.14-mile (35.63 km) long north–south state highway in the central portion of the U.S. state of Ohio. The southern terminus of SR 203 is at a four-way stop intersection with SR 37 just 0.50 miles (0.80 km) northwest of the city limits of Delaware. Its northern terminus is at SR 309 approximately 4 miles (6.4 km) northwest of Marion.

State Route 203
Route information
Maintained by ODOT
Length22.10 mi[1][2] (35.57 km)
Existed1923[3][4]–present
Major junctions
South end SR 37 near Delaware
North end SR 309 near Marion
Location
CountiesDelaware, Marion
Highway system
← SR 202SR 204 →
SR 203 in rural western Marion County, looking south from the SR 95 intersection

Route description

SR 203 traverses the northwestern portion of Delaware County and the southern half of Marion County. There are no segments of SR 203 that are included within the National Highway System (NHS), a network of highways deemed to be most important for the economy, mobility and defense of the country.[5]

History

SR 203 was established in 1923. The highway was originally routed along its current alignment between its present southern terminus, at the time designated as SR 47, and its junction with what is now SR 739, but in 1923 known as SR 38.[3][4] In 1938, SR 203 was extended north to its present terminus at what is now SR 309, but at the time a part of the now-defunct U.S. Route 30S (US 30S).[6][7]

Major intersections
CountyLocationmi[1][2]kmDestinationsNotes
DelawareRadnor Township0.000.00 SR 37 / South Section Line Road – Delaware, Magnetic Springs
MarionProspect9.8815.90 SR 47 (Water Street)
Pleasant Township12.3419.86 SR 4 – Marion, Marysville
Green Camp Township16.8427.10 SR 739 – Marion, Green Camp
Big Island Township20.2832.64 SR 95 – Marion, LaRue
22.1035.57 SR 309 – Marion, Kenton
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
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References

KML is from Wikidata
  1. Ohio Department of Transportation. "Technical Services Straight Line Diagrams: SR 203, Delaware County" (PDF). Archived from the original (PDF) on 2012-05-07. Retrieved 2011-08-11.
  2. Ohio Department of Transportation. "Technical Services Straight Line Diagrams: SR 203, Delaware County" (PDF). Archived from the original (PDF) on 2012-05-07. Retrieved 2011-08-11.
  3. Map of Ohio State Highways (MrSID) (Map). Cartography by ODHPW. Ohio Department of Highways and Public Works. April 1922. Retrieved 2011-08-11.
  4. Map of Ohio Showing State Routes (MrSID) (Map). Cartography by ODHPW. Ohio Department of Highways and Public Works. July 1923. Retrieved 2011-08-11.
  5. National Highway System: Ohio (PDF) (Map). Federal Highway Administration. December 2003. Retrieved 2011-08-11.
  6. Official Ohio Highway Map (MrSID) (Map). Cartography by ODOH. Ohio Department of Highways. 1937. Retrieved 2011-08-11.
  7. Official Ohio Highway Map (MrSID) (Map). Cartography by ODOH. Ohio Department of Highways. 1938. Retrieved 2011-08-11.
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