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Interstate 190 (South Dakota): Wikis


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Interstate 190
Auxiliary route of the Interstate Highway System
Maintained by South Dakota DOT
Length: 1.72 mi[1] (2.77 km)
South end: I-90 Bus. / US 16 / SD 47 / SD 79 in Rapid City
North end: I-90 / US 14 / US 16 in Rapid City
South Dakota numbered highways
< SD 168 SD 203 >

Interstate 190 (I-190) is an auxiliary Interstate Highway in the U.S. state of South Dakota. The route runs for about two miles (3 km) south, connecting I-90 to downtown Rapid City. The entire length overlaps U.S. Route 16. It is the westernmost auxiliary route of Interstate 90, approximately 1150 miles (1850 km) east of the highway's western terminus in Seattle, Washington. It is also the highway's only auxiliary route west of the Mississippi River.


Route description


Codified law

Legally, the route of I-190 is defined at South Dakota Codified Laws § 31-4-203.[2]

Exit list

The entire route is in Rapid City, Pennington County.

Mile[3] # Destinations Notes
0.00 To I-90 Bus. / West Boulevard
0.43 US 16 west / SD 44 / SD 79 (Omaha Street) – Mt. Rushmore
0.87 1C North Street – Civic Center
1.46 1 I-90  – Gillette, Sioux Falls Northbound exit and southbound entrance; signed as exits 1A (west) and 1B (east)



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