State highway in Dare County, North Carolina, US
North Carolina Highway 400 (NC 400) is the shortest primary state highway in the U.S. state of North Carolina. It is 0.63 miles (1.01 km) long and is entirely in Dare County and the town of Manteo on Roanoke Island. The route traverses from its western terminus at US 64 to the Elizabeth II vessel (State Historic Site) docked on Ice Plant Island, located in Shallowbag Bay. Unlike other state routes, all of the NC 400 markers have brown recreational backgrounds. The route is split among two one-way streets: eastbound and westbound.