Interstate 190 (South Dakota)

Interstate 190
Interstate 190
	I-190 highlighted in red
Route information
	Auxiliary route of I-90
	Maintained by SDDOT
Length	1.72 mi (2.77 km)
Existed	1958–present
History	Completed in 1962
NHS	Entire route
Major junctions
South end	I-90 BL / US 16 / SD 44 / SD 79 in Rapid City
North end	I-90 / US 14 / US 16 / SD 79 in Rapid City
Location
Country	United States
State	South Dakota
Counties	Pennington
Highway system
	Interstate Highway System; Main; Auxiliary; Suffixed; Business; Future; South Dakota State Trunk Highway System; Interstate; US; State;

Interstate 190 (I-190) is an auxiliary Interstate Highway in the US state of South Dakota. The route runs for about two miles (3.2 km) connecting I-90 to downtown Rapid City. The entire route is concurrent with US Highway 16 (US 16). It is the westernmost auxiliary route of I-90 (approximately 1,190 miles [1,920 km] east of the highway's western terminus in Seattle, Washington) and its only auxiliary route west of the Mississippi River.

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