I-275 (OH)

Interstate 275
Cincinnati By-Pass
Route information
Auxiliary route of I‑75
Length:	83.71 mi (134.72 km)
Existed:	1962 – present
Major junctions
Beltway around Cincinnati, Ohio
	I-71 / I-75 in Erlanger, KY US 50 in Lawrenceburg, IN I-74 / US 52 near Miamitown, OH I-75 in Sharonville, OH I-71 in Montgomery, OH US 22 / SR 3 in Montgomery, OH SR 28 in Milford, OH SR 32 near Mount Carmel, OH I-471 in Highland Heights, KY
Location
States:	Kentucky, Indiana, Ohio
Counties:	KY: Kenton, Boone, Campbell IN: Dearborn OH: Hamilton, Clermont
Highway system
Interstate Highway System Main Auxiliary Suffixed Business Future Indiana Highways Interstate US State Scenic Highways in Kentucky Interstate US State Parkways Ohio Highways Interstate U.S. State Scenic ← SR 269 IN SR 301 → ← KY 274 KY KY 276 → ← SR 274 OH SR 275 →

Interstate 275 (I-275) is an 83.71-mile-long (134.72 km) loop in Ohio, Indiana, and Kentucky that forms a complete beltway around the Cincinnati, Ohio, area. It is the only auxiliary interstate that enters three states, including one state that the parent route does not enter (Indiana). It is the longest loop interstate highway in the United States, and it encloses an area of over 250,000 acres. For a short distance in northwest Hamilton County it overlaps with I-74 and U.S. Highway 52 (US 52).

I-275 is signed as the Cincinnati By-Pass and officially known as the Donald H. Rolf Circle Freeway in Ohio, after a state senator, but locals rarely use these names, instead simply referring to it as "two-seventy-five." In 2011, Kentucky named its segment the Ronald Reagan Highway, not to be confused with Ronald Reagan Cross County Highway across the river in Cincinnati. The section in Clermont County is also designated as the Staff Sergeant Matt Maupin Veterans Memorial Highway.

I-275 heads west toward Indiana passing by the Cincinnati/Northern Kentucky International Airport, with Kentucky Route 212 (KY 212) used as the service road to and from the airport. Then near Hebron, west of the airport, I-275 has an interchange with Kentucky Route 237 (KY 237), before passing over the Ohio River into Indiana.

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Wikipedia