Ohio State Route 3

State Route 3
State Route 3
	Route of SR 3 highlighted in red
Route information
	Maintained by ODOT
Length	248.5 mi (399.9 km)
Existed	1923–present
Major junctions
South end	US 22 / US 27 / US 42 / US 52 / US 127 / SR 264 in Cincinnati
	I-71 (numerous locations); I-275 in Montgomery; US 35 / US 62 in Washington Court House; I-270 in Grove City; I-70 in Columbus; US 23 / US 33 in Columbus; US 40 / SR 16 in Columbus; I-670 in Columbus; US 30 / US 250 in Wooster; I-76 / US 224 in Seville;
North end	US 6 / US 20 / US 42 at Public Square in Cleveland
Location
Country	United States
State	Ohio
Counties	Hamilton, Warren, Clinton, Fayette, Madison, Pickaway, Franklin, Delaware, Knox, Ashland, Holmes, Wayne, Medina, Cuyahoga
Highway system
	Ohio State Highway System; Interstate; US; State; Scenic;

State Route 3 (SR 3) is a major north–south (physically northeast-southwest) highway in Ohio which leads from Cincinnati to Cleveland by way of Columbus. It is the second longest state route in Ohio. For this reason, the road is also known as the 3-C Highway, a designation which antedates the Ohio state highway system.^[2] It is the only state route to enter all three of Ohio's largest cities, though it has largely been bypassed by Interstate 71 (I-71).

^ Mileages retrieved from Technical Services Straight Line Diagrams unless otherwise noted.
^ In Search of...The Three-C Highway by Michael G. Buettner, February, 2006

[sld-1] Mileages retrieved from Technical Services Straight Line Diagrams unless otherwise noted.

[2] In Search of...The Three-C Highway by Michael G. Buettner, February, 2006

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[2]