The Greensboro Urban Loop is a Interstate Highway beltway around Greensboro, North Carolina, United States. The Urban Loop carries I-73, I-85, I-785, I-840, and US 421. It is primarily located within Greensboro city limits, though it often crisscrosses the city line. The right-of-way of the Urban Loop and its interchanges between South Elm-Eugene Street and Huffine Mill Road was annexed by the city of Greensboro in 2005. The final segment to be built, between North Elm Street and I-785/US 29, opened to traffic on January 23, 2023. Route description Beginning at an interchange between I-40, I-73, I-840, and US 421 on the west side of Greensboro, the Urban Loop follows the I-73 and I-840 concurrency north from this interchange. After a single-point urban interchange with West Friendly Avenue, the Urban Loop curves north-northeast before coming to an interchange with Bryan Boulevard. Here, I-73 leaves the Urban Loop to the west, and the Urban Loop continues as solely I-840, running northeast and east for , along the northern side of Greensboro, before reaching an interchange with I-785 and US 29, where I-785 enters the loop from the northeast. Along the way, the Urban Loop intersects US 220 (Battleground Avenue), Lawndale Drive, North Elm Street, and Yanceyville Street. Turning south at an interchange with Huffine Mill Road, the Urban Loop intersects US 70 shortly after. later, the Urban Loop comes to an interchange with I-40, I-85, and I-85 Bus., at which point I-785 and I-840 both end and I-85 enters the Urban Loop as it heads southwest. The Urban Loop winds its way southwest as I-85, intersecting Youngs Mill Road and Alamance Church Road before joining with US 421 and turning west. After meeting South Elm-Eugene Street, the Urban Loop comes to an interchange complex with I-73/US 220 and I-85 Bus./US 29/US 70. Here, I-73 joins the Urban Loop from the south as I-85 leaves it to the southwest. The two interstates officially share a wrong-way concurrency for approximately , though the collector-distributor roads of the interchanges cause the two routes to not share the same roadbed in either direction. Winding its way northwest, the Urban Loop intersects Gate City Boulevard with a diverging diamond interchange and Wendover Avenue with a partial cloverleaf interchange before reaching the initial interchange between I-40, I-73, I-840, and US 421. History Early development A June 1948 document from the city Planning & Zoning Commission described the