North Dakota Highway 18
ND 18 highlighted in red | ||||
| Route information | ||||
| Maintained by NDDOT | ||||
| Length | 242.147 mi (389.698 km) | |||
| Existed | 1939–present | |||
| Major junctions | ||||
| South end | SD 25 near Claire City, SD | |||
| North end | PTH 30 in Neche | |||
| Location | ||||
| Country | United States | |||
| State | North Dakota | |||
| Counties | Pembina, Walsh, Grand Forks, Traill, Cass, Richland | |||
| Highway system | ||||
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North Dakota Highway 18 is a major north–south highway in eastern North Dakota. It runs from Highway 30 at the Canadian border south of Gretna, Manitoba to South Dakota Highway 25 north of Claire City.