I-75 highlighted in red | ||||
Route information | ||||
Maintained by ODOT | ||||
Length | 211.55 mi[1] (340.46 km) | |||
Existed | 1957[2]–present | |||
NHS | Entire route | |||
Major junctions | ||||
South end | ![]() ![]() | |||
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North end | ![]() | |||
Location | ||||
Country | United States | |||
State | Ohio | |||
Counties | Hamilton, Butler, Warren, Montgomery, Miami, Shelby, Auglaize, Allen, Hancock, Wood, Lucas | |||
Highway system | ||||
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Interstate 75 (I-75) runs from Cincinnati to Toledo by way of Dayton in the US state of Ohio. The highway enters the state running concurrently with I-71 from Kentucky on the Brent Spence Bridge over the Ohio River and into the Bluegrass region. I-75 continues along the Mill Creek Expressway northward to the Butler County line just north of I-275. From there, the freeway runs into the Miami Valley and then passes through the Great Black Swamp before crossing into Michigan.
SLD
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