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Interstate 840 | ||||
|---|---|---|---|---|
 I-840 highlighted in red | ||||
| Route information | ||||
| Auxiliary route of I-40 | ||||
| Maintained by NCDOT | ||||
| Length | 21.9 mi[1] (35.2 km) | |||
| Existed | 2011[2]–present | |||
| History | First segment opened in 2002 officially designated as SR 3269; officially designated as I-840 in 2011 | |||
| NHS | Entire route | |||
| Major junctions | ||||
| West end |    I-40 / I-73 / US 421 in Greensboro | |||
| East end |   I-40 / I-85 / I-785 in Greensboro | |||
| Location | ||||
| Country | United States | |||
| State | North Carolina | |||
| Counties | Guilford | |||
| Highway system | ||||
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Interstate 840 (I-840) is a 21.9-mile (35.2 km) auxiliary Interstate Highway and state highway in the U.S. state of North Carolina. It is the northern half of the Greensboro Urban Loop beltway around the city of Greensboro. It connects I-40, I-73, and US 421 in the west with I-40, I-85, and I-785 in the east. It was completed on January 23, 2023.
I-840 runs concurrently with I-73 from its western terminus to its interchange with Bryan Boulevard in the northwest and I-785 from its interchange with US 29 (North O'Henry Boulevard) in the northeast to its eastern terminus. The route provides a continuous freeway bypass around Greensboro's west, north, and east sides.
- ^ Google (January 26, 2023). "Interstate 840 (North Carolina)" (Map). Google Maps. Google. Retrieved January 26, 2023.
- ^ North Carolina Department of Transportation (September 2, 2011). "US Route Change (2011-09-02)" (PDF). North Carolina Department of Transportation. Retrieved November 24, 2014.