Interstate 840 follows the Greensboro Northern Loop from I-40/73 northeast to N Elm Street. Future I-840 accompanies Interstate 785 along the Greensboro Urban Loop south from U.S. 29 to I-40/85. Located within the Triad region in north-central North Carolina, I-840 will eventually form a complete loop around Greensboro from I-40 and I-73 by Piedmont Triad International Airport (PTI) to the west and the exchange joining I-40, I-85 and I-785 near Stewarts Mill to the east. Interstate 85 comprises the southeastern quadrant of the Greensboro Urban Loop. The 13 mile long section opened to traffic in February 2004.1 Completed by February 2008, the southwest leg of the loop is a part of Interstate 73.
Project U-2525C, the final section under construction for the Greensboro Northern Loop, extends 4.7 miles east from Lawndale Drive to U.S. 29. Work commenced on the $137.7 million project in April 2018. A two mile portion opened between Lawndale Drive and N Elm Street nearly a year ahead of schedule on December 23, 2020.8 The remainder of the six lane freeway is anticipated to open on January 23, 2023. Overall work continued to Spring 2023.1
The American Association of State Highway and Transportation Officials (AASHTO) approved the final 7.28 miles of Interstate 840 as a logical addition to the Interstate System at the October 2022 meeting.
The 44 mile long Greensboro Urban Loop originated in a late 1940s transportation plan to add a parkway encircling the city. It was later named Painter Boulevard, after a former city manager.7 The initial section of Interstate 840 completed was the two mile segment north from I-40 and I-85 to U.S. 70. Located east of Greensboro and initially signed as Future I-840, the segment opened to traffic in 2002.
Subsequent construction for Interstate 840, between I-40 west of Greensboro and Joseph Bryan Boulevard, was underway during the week of September 8, 2003. The $101.6 million project was expected to open to traffic by Summer 2007, but was delayed until February 21, 2008. Citing potential benefits to Piedmont Triad International Airport (PTI) area traffic congestion, this leg of the Greensboro Urban Loop was prioritized by state officials.2 Upon completion, the west leg of the loop was dually signed as Future I-73 and I-840.
The American Association of State Highway and Transportation Officials (AASHTO) Special Committee on U.S. Route Numbering conditionally approved two additional segments of I-840 at their September 2017 meeting: one extending from its split with I-73 and Bryan Boulevard to U.S. 220 in northwest Greensboro, and the other continuing northward from U.S. 70 on the east side of the loop to U.S. 29.3
Work on the northern half of the beltway continued with construction underway in October 2013 on project U-2524C. Costing $123 million, work extended I-840 northeast from Bryan Boulevard (I-73) to U.S. 220 (Battleground). A dedication ceremony took place for the 3.8 mile, six lane wide freeway on April 13, 2018. It opened to motorists on April 19, 2018.4
The future roadways for Interstate 840 at Joseph Bryan Boulevard. This section opened to traffic on December 6, 2017. 12/15/16