Ohio State Route 665

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State Route 665 marker

State Route 665
Route information
Maintained by ODOT
Length: 25.63 mi[3] (41.25 km)
Existed: 1937[1][2] – present
Major junctions
West end: US 42 / SR 38 / SR 56 / SR 142 in London
  US 62 near Grove City
I‑71 in Grove City
East end: US 23 / SR 317 near Lockbourne
Counties: Madison, Franklin
Highway system
SR 664 SR 666

State Route 665 (SR 665) is an east–west state highway located in central Ohio, a U.S. state. The western terminus of this state highway is at a signalized intersection that marks the confluence of US 42, SR 38, SR 56 and SR 142 in downtown London. Its eastern terminus is at an intersection with US 23 and SR 317 approximately 2.50 miles (4.02 km) northwest of the village of Lockbourne.

Route description[edit]

SR 665 passes through the eastern portion of Madison County and the southwestern corner of Franklin County. There is no segment of this route that is included within the National Highway System, a system of highways deemed most important for the nation's economy, mobility and defense.[4]


When it was first designated in 1937, SR 665 was routed along its present alignment between the junction of US 42, SR 38, SR 56, and SR 142 in London and US 23 near Lockbourne.[1][2] Just two years later, the highway was extended on the east end, via a short jog northerly along US 23, then east along what is today SR 317 from US 23 into Groveport, where the route came to an end at the Main Street intersection.[5][6] Then, in 1973, a southward extension of SR 317 through the eastern portion of suburban Columbus resulted in that highway being extended to Groveport. SR 317 was linked in with what was then the eastern terminus of SR 665, and then replaced SR 665 from that point westerly to US 23. Consequently, SR 665 was restored to its original routing, and has not changed since that time.[7][8] As of 2013, SR 317's southern terminus has been realigned to end at SR 665's eastern terminus.[9]

Major intersections[edit]

County Location Mile[3] km Destinations Notes
Madison London 0.00 0.00 US 42 / SR 38 north / SR 142 east (High Street) / SR 56 west (North Main Street) Western end of SR 38/SR 56 concurrency; western terminus of SR 142
0.31 0.50 SR 38 south (West Center Street) / SR 56 east (South Main Street) Eastern end of SR 38/SR 56 concurrency
Franklin Pleasant Township 18.10 29.13 US 62 / SR 3 (Harrisburg Pike)
Grove City 19.98 32.15 I‑71 – Columbus, Cincinnati Exit 97 (I-71)
23.31 37.51 SR 104 (Jackson Pike) – Columbus, Chillicothe
Hamilton Township 25.63 41.25 US 23 (South High Street) / SR 317 north (London Groveport Road) – Groveport, Circleville Southern terminus of SR 317
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ a b Ohio Department of Highways (1936) (MrSID). Official Ohio Highway Map (Map). Cartography by ODOH. http://www.dot.state.oh.us/Divisions/TransSysDev/Innovation/prod_services/Documents/StateMaps/otm1936a.sid. Retrieved 2011-01-12.
  2. ^ a b Ohio Department of Highways (1937) (MrSID). Official Ohio Highway Map (Map). Cartography by ODOH. http://www.dot.state.oh.us/Divisions/TransSysDev/Innovation/prod_services/Documents/StateMaps/otm1937a.sid. Retrieved 2011-01-12.
  3. ^ a b Ohio Department of Transportation. "Technical Services Straight Line Diagrams". Retrieved 2006-12-06. 
  4. ^ Federal Highway Administration (December 2003) (PDF). National Highway System: Ohio (Map). http://www.fhwa.dot.gov/planning/nhs/maps/oh/oh_Ohio.pdf. Retrieved 2011-01-11.
  5. ^ Ohio Department of Highways (1938) (MrSID). Official Ohio Highway Map (Map). Cartography by ODOH. http://www.dot.state.oh.us/Divisions/TransSysDev/Innovation/prod_services/Documents/StateMaps/otm1938a.sid. Retrieved 2011-01-12.
  6. ^ Ohio Department of Highways (1939) (MrSID). Official Ohio Highway Map (Map). Cartography by ODOH. http://www.dot.state.oh.us/Divisions/TransSysDev/Innovation/prod_services/Documents/StateMaps/otm1939a.sid. Retrieved 2011-01-12.
  7. ^ Ohio Department of Highways (1972) (MrSID). Ohio Highway Map (Map). Cartography by ODOH. http://www.dot.state.oh.us/Divisions/TransSysDev/Innovation/prod_services/Documents/StateMaps/otm1972a.sid. Retrieved 2011-01-12.
  8. ^ Ohio Department of Transportation (1973) (MrSID). Ohio Transportation Map (Map). Cartography by ODOT. http://www.dot.state.oh.us/Divisions/TransSysDev/Innovation/prod_services/Documents/StateMaps/otm1973a.sid. Retrieved 2011-01-12.
  9. ^ "2013 Franklin County Projects". ODOT. 2013. Retrieved February 4, 2014. 

External links[edit]