Interstate 280 (Iowa–Illinois)
| Quad Cities Beltway | |||||||
| I-280 highlighted in red | |||||||
| Route information | |||||||
| Auxiliary route of I-80 | |||||||
| Maintained by Iowa DOT and IDOT | |||||||
| Length | 26.98 mi (43.42 km) | ||||||
| NHS | Entire route | ||||||
| Major junctions | |||||||
| West end | I-80 / US 6 / US 61 in Davenport, IA | ||||||
| 
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| East end | I-74 / I-80 near Colona, IL | ||||||
| Location | |||||||
| Country | United States | ||||||
| States | |||||||
| Counties | 
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| Highway system | |||||||
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Interstate 280 (I-280) is an auxiliary Interstate Highway that makes up the western and southern portions of the beltway around the Quad Cities of Illinois and Iowa. The freeway starts at I-80 near Davenport, Iowa, and ends at I-80 near Colona, Illinois; its eastern part runs concurrent with I-74 to return to I-80. I-280 forms the southern part of a circle around the Quad Cities as well as forming part of a bypass (along with I-80) for US Route 61 (US 61) around Davenport. This road is 26.98 miles (43.42 km) long.