Interstate 275 (Ohio–Indiana–Kentucky)
|Length:||83.71 mi (134.72 km)|
|Existed:||1962 – present|
|Beltway around Cincinnati, Ohio|
I-71 / I-75 in Erlanger, KY
|States:||Kentucky, Indiana, Ohio|
|Counties:||KY: Kenton, Boone, Campbell
OH: Hamilton, Clermont
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. 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. The section in Clermont County is also designated as the Staff Sergeant Matt Maupin Veterans Memorial Highway.
Route description 
I-71/I-75 to Indiana 
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.
In Indiana I-275 passes through rural area with only one interchange and it is at U.S. Route 50 (US 50)/State Road 1 (SR 1). I-275 heads northeast towards Ohio, at the Ohio state line I-275 passes over US 50.
I-275 heads northeast towards Springdale. I-275 has a short concurrency with Interstate 74 (I-74). When the concurrency ends, I-275 has an intersection with Ohio State Route 126 (Ronald Reagan Cross County Highway). Then I-275 has an interchanges with U.S. Route 27 (US 27) and U.S. Route 127 (US 127). I-275 turns east having an interchange with State Route 4, State Route 747, Interstate 75, and U.S. Route 42. I-275 turns southeast having an interchange with Interstate 71 and U.S. Route 22. I-275 passes through over the Little Miami River and I-275 turns due south toward Milford. I-275 then has interchanges with State Route 28, State Route 450, State Route 32, and State Road 125. I-275 turns due west towards Kentucky, passing through a short concurrency with U.S. Route 52 (US 52), before crossing over the Ohio River into Kentucky.
Ohio to I-71/I-75 
From Ohio I-275 heads southwest towards Highland Heights. I-275 has an interchange with Interstate 471 (I-471) near Highland Heights. I-275 turns due west towards Crestview Hills, passing through an interchange with Kentucky Route 9 (KY 9), Kentucky Route 16 (KY 16), and Kentucky Route 17 (KY 17). In Crestview Hills I-275 has an interchange with U.S. Route 25/U.S. Route 42/U.S. Route 127. I-275 turns northeast towards Interstate 71/Interstate 75.
|This section requires expansion. (August 2012)|
I-74/I-275 bridge accident 
On May 20, 2008, a tractor-trailer hauling a locomotive separated while traveling on the ramp from westbound I-74 to southbound I-275. After the trailer detached, it crashed into supports for the bridge on I-74 eastbound going over the ramps between I-275 and I-74 westbound. As a result, the Ohio Department of Transportation shut down eastbound I-74 for several weeks. Both ramps between I-74 west and I-275 were closed as well, because of fears the bridge would collapse, but two crossovers were built so that traffic could use one lane of westbound I-74 to travel east around the damaged bridge.
Exit list 
||Erlanger||0.000||0.000||84||I-71 / I-75 – Louisville, Lexington, Cincinnati|
||2.027||3.262||2||Mineola Pike – Erlanger, Villa Hills|
|3.969||6.387||4||KY 212 to KY 20 – Cincinnati-Northern Kentucky International Airport||Signed as exits 4A (east) and 4B (west) westbound|
|Hebron||7.028||11.310||8||KY 237 (North Bend Road) – Hebron||Signed as exits 8A (north) and 8B (south) westbound|
|Idlewild||11.427||18.390||11||KY 8 south – Petersburg||Northern terminus of the western segment of KY 8; I-275 west becomes north inner; I-275 south to east outer|
|Ohio River||13.858||22.302||Kentucky–Indiana state line|
||Lawrenceburg||15.13||24.35||16||SR 1 north to US 50 – Lawrenceburg, Greendale, Aurora||Southern terminus of SR 1; access to Hollywood Casino Lawrenceburg, Grand Victoria Casino and Belterra Casino|
|17.02||27.39||Indiana–Ohio state line|
|24.24||39.01||25||I-74 west / US 52 west – Indianapolis||South end of I-74 / US 52 overlap|
|Miamitown||7||SR 128 (Hamilton–Cleves Road) – Hamilton, Cleves||I-275 north becomes east inner; I-275 west becomes south outer|
|27.82||44.77||28||I-74 east / US 52 east – Cincinnati||East end of I-74 / US 52 overlap|
|31||Ronald Reagan Cross County Highway east / Blue Rock Road|
|Northbrook||33.04||53.17||33||US 27 / SR 126 (Colerain Avenue)||Access to Northgate Mall|
|Pleasant Run||35.84||57.68||36||US 127 (Hamilton Avenue) – Forest Park, Fairfield|
|Forest Park||38.25||61.56||39||Winton Road – Fairfield, Greenhills||Access to Cincinnati Mall|
|Springdale||40.40||65.02||41||SR 4 (Dixie Highway), Fairfield, Hamilton|
|41.40||66.63||42||SR 747 (Princeton Pike) – Springdale, Glendale||Signed as exits 42A (south) and 42B (north) westbound; access to Tri-County Mall|
|Sharonville||42.74||68.78||43||I-75 (Millcreek Expressway) – Dayton, Cincinnati||Signed as exits 43A (north) and 43B (south) eastbound, and as exits 43A (south) and 43B (north) westbound; left exit eastbound (43A); left exit westbound (43A)|
|43.47||69.96||44||Mosteller Road – Sharonville|
|45.36||73.00||46||US 42 (Lebanon Road) – Sharonville, West Chester, Mason|
|46.81||75.33||47||Reed Hartman Highway – Sharonville, Blue Ash|
|Montgomery||48.24||77.63||49||I-71 – Columbus, Cincinnati||Signed as exits 49A (south) and 49B (north) westbound|
|49.22||79.21||50||US 22 / SR 3 (Montgomery Road) – Montgomery, Morrow|
|51.86||83.46||52||Loveland–Madeira Road – Loveland, Indian Hill, Madeira|
||Sundale||54.30||87.39||54||Wards Corner Road||I-275 east becomes south inner; I-275 north becomes west outer|
|Mulberry||57.31||92.23||57||SR 28 – Milford, Blanchester|
|Milford||59.20||95.27||59||SR 450 (Milford Parkway) to US 50 – Milford, Hillsboro||Signed as exits 59A (west) and 59B (east)|
|Mount Carmel||63.42||102.06||63||SR 32 – Newtown, Batavia||Signed as exits 63A (west) and 63B (east); access to Eastgate Mall|
|Withamsville||65.91||106.07||65||SR 125 (Ohio Pike) – Amelia||I-275 south becomes west inner; I-275 east becomes north outer|
||Anderson Township||68.83||110.77||69||Five Mile Road|
|Cincinnati||70.95||114.18||71||US 52 east (Kellogg Avenue) – New Richmond||East end of US 52 overlap|
|72.64||116.90||72||US 52 west (Kellogg Avenue) – Cincinnati||West end of US 52 overlap; access to River Downs|
|Ohio River||73.061||117.580||Ohio–Kentucky state line|
||Highland Heights||74.857||120.471||74||I-471 north / KY 471 south – Cincinnati, Alexandria, Highland Heights||Southern terminus of I-471; northern terminus of KY-471; signed as exits 74A (north) and 74B (south)|
|75.454||121.431||76||Three Mile Road – Wilder, Alexandria||Access to Northern Kentucky University; eastbound exit and westbound entrance|
|Wilder||77.097||124.076||77||KY 9 / AA Hwy – Alexandria|
||Taylor Mill||78.779||126.783||79||KY 16 (Taylor Mill Road) – Covington, Taylor Mill|
|Fort Wright||79.970||128.699||80||KY 17 (Madison Pike) – Covington, Independence|
|Lakeside Park||82.030||132.014||82||KY 1303 (Turkeyfoot Road) – Lakeside Park, Crestview Hills,||Access to Thomas More College; leads to Edgewood|
|82.503||132.776||83||US 25 / US 42 / US 127 (Dixie Highway) – Erlanger, Florence|
|Erlanger||83.780||134.831||84||I-71 / I-75 – Louisville, Lexington, Cincinnati|
- Staff (October 31, 2002 ). "Route Log: Auxiliary Routes of the Eisenhower National System of Interstate and Defense Highways, Table 2". Route Log and Finder List. Federal Highway Administration. Retrieved April 30, 2011.
- Smith, Steve et al (2007). "Around Town". Cincinnati USA City Guide. Cincinnati Magazine. p. 79. Retrieved 2013-05-06.
- Welzel, Karin A. (c. 1984). The Columbus Dispatch http://www.roadfan.com/dispname.html
|url=missing title (help). Retrieved April 12, 2009.
- Wartman, Scott (September 29, 2011). "N.Ky. gets Ronald Reagan Highway". Gannett. Retrieved October 3, 2011.
- "60–90 Days to Fix Whitewater Township Bridge". Cincinnati, OH: WKRC-TV. May 21, 2008. Retrieved May 23, 2008.
- Relyea, Neil (May 22, 2008). "Work Crews Open One Lane From W I-74 To S I-275". Cincinnati, OH: WCPO-TV. Retrieved May 23, 2008.
- Staff. "Official DMI Route Log". Kentucky Transportation Cabinet. Retrieved September 3, 2011.
- Staff. "INDOT Roadway Referencing System" (PDF). Indiana Department of Transportation. Retrieved September 3, 2011.
- Staff (January 1, 2009). "Straight Line Diagrams". Technical Services. Ohio Department of Transportation. Retrieved September 3, 2011.
- Staff (2007). "Interstate 275" (PDF). Ohio Interstate Exit Guide. Ohio Department of Transportation. Retrieved January 18, 2011.
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