Interstate 270 is the designation for four Interstate Highways in the United States, all of which are related to Interstate 70:
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Interstate 270 (Colorado)
Interstate 270 (I-270) is a auxiliary Interstate Highway located in the northeastern part of the Denver metropolitan area in the US state of Colorado. It overlaps U.S. Highway 36 (US 36) for its entire length and is also a par ...
, a northeastern bypass of downtown Denver
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Interstate 270 (Missouri–Illinois)
Interstate 270 (I-270) makes up a large portion of the outer belt freeway in Greater St. Louis. The counterclockwise terminus of I-270 is at the junction with I-55 and I-255 in Mehlville, Missouri; the clockwise terminus of the freeway is ...
, a partial beltway around St. Louis
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Interstate 270 (Maryland)
Interstate 270 (I-270) is a auxiliary Interstate Highway in the U.S. state of Maryland that travels from I-495 (Capital Beltway) just north of Bethesda in Montgomery County north to I-70 in the city of Frederick in Frederick County. I ...
, a connector to the Washington, D.C. metropolitan area
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Interstate 270 (Ohio)
Interstate 270 (I-270) is an auxiliary interstate highway that forms a beltway loop freeway in the Columbus metropolitan area in the US state of Ohio, commonly known locally as The Outerbelt or the Jack Nicklaus Freeway. The zero-milepos ...
, a beltway around Columbus, Ohio
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