Interstate 190 (South Dakota)

Interstate 190
Route information
Defined by SDCL §31-4-203
Maintained by SDDOT
Length:	1.72 mi[1] (2.77 km)
Major junctions
South end:	I-90 Bus. / US 16 / SD 44 / SD 79 in Rapid City
North end:	I-90 / US 14 / US 16 in Rapid City
Highway system
Interstate Highway System Main Auxiliary Suffixed Business South Dakota 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 2 miles (3.2 km) south, connecting I-90 to downtown Rapid City. Its length from I-90 to Omaha Street runs concurrent with 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.

Route description

I-190 begins as West Boulevard and has an intersection with Omaha Street, which is signed as US 16/SD 44. US 16 westbound goes east on Omaha Street and eastbound runs north concurrently with I-190. I-190 then becomes a freeway, with an exit to North Street. I-190 then passes under Anamosa Street before an on-ramp from the northbound lanes of West Boulevard. Both US 16 and I-190 then terminate at a trumpet interchange with I-90/US 14/SD 79.^[2]

State law

Legally, the route of I-190 is defined at South Dakota Codified Laws § 31-4-203.^[3]

Exit list

All exit numbers begin with 1. Only lettered exits are given. The entire route is in Rapid City, Pennington County.

mi[4]	km	Exit	Destinations	Notes
0.00	0.00		To I-90 Bus. / West Boulevard	Southern terminus
0.43	0.69		US 16 west / SD 44 / Omaha Street – Mount Rushmore	Southern end of US 16 concurrency
0.87	1.40	C	North Street – Rushmore Plaza Civic Center
1.46	2.35	A–B	I-90 / US 14 / SD 79 – Gillette, Sioux Falls	I-90 exit 57; northbound exit and southbound entrance; eastern terminus of US 16, northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

1. "Route Log and Finder List - Interstate System: Table 2". FHWA. Retrieved 2007-10-03.
2. Google (2011-09-07). "I-190" (Map). Google Maps. Google. Retrieved 2011-09-07.
3. "South Dakota Codified Laws - § 31-4-203". South Dakota Legislature. Retrieved 2008-06-25.
4. "Transportation Inventory Management". South Dakota Department of Transportation. Retrieved 2008-06-25.

Route map: Bing / Google