Ohio State Route 503

State Route 503
Route information
Maintained by ODOT
Length:	40.53 mi[3] (65.23 km)
Existed:	1937[1][2] – present
Major junctions
South end:	US 127 in Seven Mile
	US 35 in West Alexandria I-70 in Lewisburg US 40 in Lewisburg
North end:	SR 121 in Wayne Lakes
Location
Counties:	Butler, Preble, Darke
Highway system
Ohio highways Interstates • U.S. Routes • State Routes ← SR 502 SR 505 →

State Route 503 (SR 503, OH 503) is a north–south state highway in the southwestern quadrant of the U.S. state of Ohio. The southern terminus of SR 503 is at U.S. Route 127 (US 127) in Seven Mile. Its northern terminus is at a T-intersection with SR 121 on the eastern limits of the village of Wayne Lakes.

Route description

Along its way, SR 503 travels through northern Butler County, eastern Preble County and southern Darke County. There are no segments of SR 503 that are included as a part of the National Highway System, a network of highways identified as being most important for the economy, mobility and defense of the nation.^[4]

History

The SR 503 designation was assigned in 1937. The highway was established along the routing that it maintains to this day between US 127 in Seven Mile and SR 121 in Wayne Lakes. No changes of major significance have taken place to the routing of the highway since its inception.^[1][2]

Major intersections

County	Location	Mile[3]	Destinations	Notes
Butler	Seven Mile	0.00	US 127	Southern terminus.
	Wayne Township	0.97	SR 73
		4.61	SR 744
Preble	Gratis	12.19	SR 725
		12.26	SR 122
	West Alexandria	19.16	US 35	Signalized intersection.
	Harrison Township	25.60	I-70	Exit 14 off of I-70, a diamond interchange.
	Lewisburg	26.83	US 40	Signalized intersection.
Darke	Ithaca	32.71	SR 722 east	Four-way stop intersection marking southern split of SR 503/SR 722 duplex. SR 722 joins from the east.
	Twin Township	32.85	SR 722 west	T-intersection marking northern split of SR 503/SR 722 duplex. SR 722 departs to the west.
	Butler Township	38.94	US 127
	Wayne Lakes	40.53	SR 121	Northern terminus at T-intersection.
1.000 mi = 1.609 km; 1.000 km = 0.621 mi      Concurrency terminus •      Closed/Former •      Incomplete access •      Unopened

References

	Ohio portal
	U.S. Roads portal

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 2011-02-25. 
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 2011-02-25. 
3. ^ ^{a b} Ohio Department of Transportation. "Technical Services Straight Line Diagrams". http://www.odotonline.org/techservapps/SLD/default.htm. Retrieved 2011-02-26. 
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 2011-02-25. 

External links

• State Route 503 Endpoint Photos