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South Dakota

Interstates

	Interstate	IA border, North Sioux City - Vermillion - Sioux Falls (I-229, I-90) - Brookings - Watertown - Sisseton - New Effington, ND border
	Interstate	WY border, Spearfish - Sturgis - Rapid City (I-190) - Box Elder - Vivian - Mitchell - Sioux Falls (I-29, I-229) - Valley Springs, IA border
	Interstate	I-90 - Rapid City
	Sioux Falls East Beltway	Sioux Falls: I-29 - I-90

Standards

Freeway standard

Under construction U/C
Planned

Page was last modified on 25 November 2005