Ohio State Route 166

State Route 166
Route information
Maintained by ODOT
Length:	11.40 mi[3] (18.35 km)
Existed:	1923[1][2] – present
Major junctions
West end:	US 6 near Chardon
East end:	SR 534 near Rock Creek
Location
Counties:	Geauga, Ashtabula
Highway system
Ohio highways Interstates • U.S. Routes • State Routes ← SR 165 SR 167 →

State Route 166 (SR 166, OH 166) is an east–west state highway in the northeastern portion of the U.S. state of Ohio. The western terminus of State Route 166 is at a T-intersection with U.S. Route 6 just over 3 miles (4.8 km) northeast of Chardon. Its western terminus is at State Route 534 about 5 miles (8.0 km) west of Rock Creek.

Route description

State Route 166 travels through the northeastern portion of Geauga County and the western part of Ashtabula County. No segment of this highway is a part of the National Highway System, a system of highways identified as most important for the economy, mobility and defense of the nation.^[4]

History

The debut of State Route 166 took place in 1923. The original routing of State Route 166 consisted of the existing route of State Route 166 from its current western terminus northeast of Chardon to its junction with State Route 528, and State Route 528 from that intersection north to that highway's current northern terminus north of Madison.^{[1] [2]} In 1939, State Route 166 was re-routed. From the current junction of State Route 166 and State Route 528, State Route 166 was routed east, replacing what was formerly designated as State Route 522, to the intersection that marks State Route 166's current eastern terminus at State Route 534 west of Rock Creek. In turn, State Route 528 was extended northward, replacing what was the north-south leg of State Route 166.^{[5] [6]}

Major intersections

County	Location	Mile[3]	Destinations	Notes
Geauga	Hambden Township	0.00	US 6	Western terminus at T-intersection.
	Thompson Township	4.09	SR 86
		6.59	SR 528
Ashtabula	Trumbull Township	11.40	SR 534	Eastern terminus.
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

1. ^ ^{a b} Ohio Department of Highways and Public Works (April 1922) (MrSID). Map of Ohio State Highways (Map). Cartography by ODHPW. http://www.dot.state.oh.us/Divisions/TransSysDev/Innovation/prod_services/Documents/StateMaps/otm1922a.sid. Retrieved 2011-01-08. 
2. ^ ^{a b} Ohio Department of Highways and Public Works (July 1923) (MrSID). Map of Ohio Showing State Routes (Map). Cartography by ODHPW. http://www.dot.state.oh.us/Divisions/TransSysDev/Innovation/prod_services/Documents/StateMaps/otm1923a.sid. Retrieved 2011-01-08. 
3. ^ ^{a b} Ohio Department of Transportation. "Technical Services Straight Line Diagrams". http://www.odotonline.org/techservapps/SLD/default.htm. Retrieved 2006-11-12. 
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 2011-01-08. 
5. ^ Ohio Department of Highways (1939) (MrSID). Ohio Highway Map (Map). Cartography by ODOH. http://www.dot.state.oh.us/Divisions/TransSysDev/Innovation/prod_services/Documents/StateMaps/otm1939a.sid. Retrieved 2011-01-08. 
6. ^ Ohio Department of Highways (1940) (MrSID). Ohio Highway Map (Map). Cartography by ODOH. http://www.dot.state.oh.us/Divisions/TransSysDev/Innovation/prod_services/Documents/StateMaps/otm1940a.sid. Retrieved 2011-01-08. 

External links

• State Route 166 Endpoint Photos