North Dakota Highway 31

North Dakota Highway 31
North Dakota Highway 31
Route information
	Maintained by NDDOT
Southern segment
Length	35.257 mi (56.741 km)
South end	SD 65 at the South Dakota border
North end	ND 21 west of Flasher
Northern segment
Length	33.938 mi (54.618 km)
South end	I-94 north of New Salem
North end	CR 37 in Stanton
Location
Country	United States
State	North Dakota
Counties	Sioux, Morton, Grant, Oliver, Mercer
Highway system
	North Dakota State Highway System; Interstate; US; State;

North Dakota Highway 31 (ND 31) is a north–south state highway in the U.S. state of North Dakota. The southern segments southern terminus is a continuation as South Dakota Highway 65 (SD 65) at the South Dakota border, and the northern terminus is at ND 21 west of Flasher. The northern segments southern terminus is at Interstate 94 (I-94) north of New Salem and the northern terminus is a continuation as County Route 37 (CR 37) at the end of state maintenance in Stanton.^[2]

The portion of ND 31 in Sioux County, in the Standing Rock Indian Reservation, divides the Mountain Time Zone to the west and the Central Time Zone to the east.^[3]

Major intersections

County	Location	mi^[1]	km	Destinations	Notes
Sioux		0.000	0.000	SD 65	Beginning of southern section
Grant–Morton county line		35.257	56.741	ND 21	End of southern section
Gap in route
Morton		0.000	0.000	I-94	Beginning of northern section, I-94 exit 127
Oliver		17.389	27.985	ND 25 east	Western terminus of ND 25
Mercer		30.393	48.913	ND 200A west	Southern end of ND 200A concurrency
		32.260	51.917	ND 200A east	Northern end of ND 200A concurrency
	Stanton	33.938	54.618	CR 37	End of northern section
1.000 mi = 1.609 km; 1.000 km = 0.621 mi Concurrency terminus

References

^ ^a ^b Cartography Section, Planning/Asset Management Section (2015). Route and Mileage Map (PDF) (Map). c. 1:1,900,800. Bismarck: North Dakota Department of Transportation. Retrieved July 20, 2016.
^ North Dakota Department of Transportation. North Dakota Route and Mileage Map (PDF) (Map). Bismarck: North Dakota Department of Transportation. Retrieved August 30, 2018.
^ 49 CFR 71.7

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[NDDOT-1] Cartography Section, Planning/Asset Management Section (2015). Route and Mileage Map (PDF) (Map). c. 1:1,900,800. Bismarck: North Dakota Department of Transportation. Retrieved July 20, 2016.

[2] North Dakota Department of Transportation. North Dakota Route and Mileage Map (PDF) (Map). Bismarck: North Dakota Department of Transportation. Retrieved August 30, 2018.

[3] 49 CFR 71.7

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