Interstate 190 marker

Interstate 190

I-190 highlighted in red
Route information
Auxiliary route of I-90
Maintained by SDDOT
Length1.72 mi[1] (2.77 km)
Existed1958[2]–present
HistoryCompleted in 1962
NHSEntire 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
CountryUnited States
StateSouth Dakota
CountiesPennington
Highway system
  • South Dakota State Trunk Highway System
← SD 168→ SD 203

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.

Route description

Northern terminus at I-90

I-190 begins as West Boulevard and has an intersection with Omaha Street, which is signed as US 16/South Dakota Highway 44 (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 onramp 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.[3]

State law

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

History

A freeway replacing West Bypass to connect downtown Rapid City to I-90 was proposed by the city government.[5] The designation of I-190 for this connector was approved by the American Association of State Highway Officials in November 1958.[2]

I-190 was opened in 1962 to connect Rapid City to the recently completed I-90 bypass, which was built outside of Rapid City's northern boundaries.[6]

The interchange with I-90 was rebuilt from 2000 to 2001, changing from a directional T interchange with a left exit to a trumpet interchange.[7][8][9] The Omaha Street intersection was rebuilt in 2004,[10] while the North Street interchange was converted to a single-point urban interchange in 2017.[11]

Exit list

The entire route is in Rapid City, Pennington County.

mi[12]kmExitDestinationsNotes
0.000.00
 To I-90 BL / West Boulevard south		Southern terminus of I-190; roadway continues as West Boulevard; stoplight intersection
0.430.69
 US 16 west / SD 44 (Omaha Street) – Mount Rushmore		Southern end of US 16 concurrency
0.871.401CNorth Street – Civic Center
1.462.351A–1B I-90 (US 14 / SD 79) – Gillette, Sioux FallsNorthern terminus of I-190; eastern terminus of US 16; northern end of US 16 concurrency; northbound exit and southbound entrance; left exit A to 90 westbound; trumpet interchange; I-90 exit 57
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

  1. ↑ Starks, Edward (January 27, 2022). "Table 2: Auxiliary Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways". FHWA Route Log and Finder List. Federal Highway Administration. Retrieved November 30, 2022.
  2. 1 2 Johnson, A. E. (November 10, 1958). "Correspondence with H. C. Kempfer". American Association of State Highway Officials. p. 1. Retrieved December 4, 2021 – via AASHTO Route Numbering Archive.
  3. ↑ Google (September 7, 2011). "I-190" (Map). Google Maps. Google. Retrieved September 7, 2011.
  4. ↑ "South Dakota Codified Laws - § 31-4-203". South Dakota Legislature. Retrieved June 25, 2008.
  5. ↑ Niciejewski, Ed (March 11, 1958). "Rapid City Important Point On Interstate; City Plans Connecting Links For Interstate". Rapid City Journal. p. 19. Retrieved December 9, 2021 – via Newspapers.com.
  6. ↑ "I-190/Silver Street Study: Interchange Modification Justification Report" (PDF). South Dakota Department of Transportation. December 2011. p. 8. Retrieved January 19, 2018.
  7. ↑ Ross, Denise (March 1, 1998). "I-90 projects ready to go". Rapid City Journal. p. 31. Retrieved September 9, 2021 – via Newspapers.com.
  8. ↑ Daly, Dan (July 16, 2000). "Detourism; Businesses cope with construction". Rapid City Journal. p. F1. Retrieved September 9, 2021 – via Newspapers.com.
  9. ↑ Miller, Steve (July 27, 2001). "I-90 project nears end; lanes open". Rapid City Journal. p. B1. Retrieved September 9, 2021 – via Newspapers.com.
  10. ↑ "Omaha Street, Rapid City: What is Being Built". South Dakota Department of Transportation. 2004. Archived from the original on August 15, 2004. Retrieved January 19, 2018.
  11. ↑ Holland, Jim (October 2, 2017). "Good news, Rapid City drivers: The I-190 project is nearly done". Rapid City Journal. Retrieved January 19, 2018.
  12. ↑ "Transportation Inventory Management". South Dakota Department of Transportation. Retrieved June 25, 2008.
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