U.S. Route 12 in North Dakota

U.S. Highway 12
U.S. Highway 12
	US 12 highlighted in red
Route information
	Maintained by NDDOT
Length	87.470 mi (140.769 km)
Existed	1926–present
Major junctions
West end	US 12 at the Montana state line
	US 85 in Bowman;
East end	US 12 at the South Dakota state line
Location
Counties	Slope, Bowman, Adams
Highway system
	United States Numbered Highway System; List; Special; Divided; North Dakota State Highway System; Interstate; US; State;

U.S. Route 12 (US 12) is a part of the U.S. Highway System that travels from Aberdeen, Washington, to Detroit, Michigan. In the state of North Dakota, US 12 extends from the Montana border east to the South Dakota border.

Route description[]

Throughout the state, US 12 is a two-lane undivided highway that runs through Adams, Bowman and Slope counties in southwest North Dakota. The speed limit is 65 miles per hour (105 km/h) on rural segments, with slower posted speeds within the cities of Marmarth, Rhame, Bowman, Scranton and Hettinger. US 12 meets with US 85 in Bowman, and the routes run concurrently for a short distance through the city.^[1]

Major intersections[]

County	Location	mi^[1]	km	Destinations	Notes
Slope		0.000	0.000	US 12 west – Baker	Continuation into Montana
Bowman	Bowman	33.207	53.441	US 85 south – Belle Fourche	Western end of US 85 concurrency
	Bowman	33.867	54.504	US 85 north – Belfield	Eastern end of US 85 concurrency
	Scranton	46.415	74.698	ND 67 north – Scranton	Southern terminus of ND 67
Adams		56.112	90.304	ND 22 south – State Line	Western end of ND 22 concurrency
		60.369	97.154	ND 22 north – New England, Dickinson	Eastern end of ND 22 concurrency
		73.455	118.214	ND 8 south – Lodgepole	Western end of ND 8 concurrency
		81.540	131.226	ND 8 north – Mott & Haynes Road south-Haynes	Eastern end of ND 8 concurrency
		87.470	140.769	US 12 east – Lemmon	Continuation into South Dakota
1.000 mi = 1.609 km; 1.000 km = 0.621 mi Concurrency terminus