Utah State Route 198

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State Route 198 marker

State Route 198
Route information
Defined by Utah Code §72-4-125
Maintained by UDOT
Length: 15.715 mi[1] (25.291 km)
Existed: 1995 – present
Major junctions
West end: I-15 / US-6 in Santaquin
  SR-178 in Payson
SR-115 in Payson
SR-164 in Spanish Fork
SR-156 in Spanish Fork
East end: US-6 in Spanish Fork
Highway system
  • State highways in Utah
SR-196 SR-199

State Route 198 is a highway completely within Utah County in northern Utah that connects Santaquin to Spanish Fork via Payson and Salem. The route runs 16 miles (26 km). The entire length of the route is an old routing of US-6 and US-50; a portion of the route was also US-91. These routes were re-aligned or truncated after the Interstate Highway System was constructed through this part of Utah.

Route description[edit]

From its western terminus at Interstate 15 in Santaquin, the route heads north-northeast until reaching Payson, where it straightens out to the north. This portion of the route is 100 West in Payson. Soon after, the highway turns east on State Road. The highway veers northeast and eventually to the north-northeast until Spanish Fork, where it runs north again. The route turns east on Canyon Road, eventually turning to the southeast until reaching US-6, where it terminates.


The roads from Santaquin northeast to Spanish Fork and Spanish Fork southeast to Moark Junction were added to the state highway system in the early 1910s.[2][3] In the 1920s, the former back part of SR-1 and US-91, and the latter part of SR-8 and US-89.[4][5][6] The state route designation of the latter portion, which had since become signed as US-6, was changed from SR-8 to State Route 105 in 1945.[7] With the construction of I-15 in the area, SR-1 was moved to the new Interstate in 1964, and the old route from Santaquin to Spanish Fork became an extension of SR-26, which was continued east to Moark Junction, replacing SR-105. The state legislature redesignated this as part of SR-27 in 1969,[8] and in the 1977 renumbering the official state route designation was changed to SR-6, matching signage for US-6. The Utah Transportation Commission submitted a request for a realignment to the American Association of State Highway Officials (AASHTO) in 1994, moving US-6 onto I-15 and SR-214 in order to follow AASHTO policies for following the "shortest routes and the best roads". AASHTO approved this change in November,[9] and in April 1995 the state officially moved US-6, with the old alignment becoming State Route 198.[10]

Major intersections[edit]

The entire route is in Utah County. [11]

Location[11] mi[1] km Destinations Notes
Santaquin 0.000 0.000 I-15 – Nephi, Provo Western terminus
Payson 4.385 7.057 SR-178 west (West 800 South)
5.391 8.676 SR-115 north (Main Street)
Spanish Fork 11.540 18.572 SR-164 west (Arrowhead Trail)
13.342 21.472 SR-156 north Former separation of US-6/50 with US-91
15.715 25.291 US-6 – Spanish Fork, Price Eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ a b "State Route 198 Highway reference". Utah Department of Transportation. 
  2. ^ Utah Department of Transportation, Highway Resolutions: "Route 1".  (35.4 MB), updated September 2007, accessed May 2008
  3. ^ Utah Department of Transportation, Highway Resolutions: "Route 8".  (16.8 MB), updated September 2007, accessed May 2008
  4. ^ Rand McNally Auto Road Atlas, 1926
  5. ^ Bureau of Public Roads & American Association of State Highway Officials (November 11, 1926). United States System of Highways Adopted for Uniform Marking by the American Association of State Highway Officials (Map). 1:7,000,000. Washington, DC: U.S. Geological Survey. OCLC 32889555. Retrieved November 7, 2013 – via University of North Texas Libraries. 
  6. ^ American Association of State Highway Officials, United States Numbered Highways, American Highways, April 1927
  7. ^ Utah State Legislature (1945). Chapter 61: State Roads and Routes. Session Laws of Utah. Route 105. From Spanish Fork on route 1 easterly to Moark Junction on route 8. 
  8. ^ Utah Department of Transportation, Highway Resolutions: "Route 26".  (4.54 MB), updated September 2007, accessed May 2008
  9. ^ Utah Department of Transportation, Highway Resolutions: "Route 6".  (17.4 MB), updated September 2007, accessed May 2008
  10. ^ Utah Department of Transportation, Highway Resolutions: "Route 198".  (3.00 MB), updated November 2007, accessed May 2008
  11. ^ "State Highway Map". Utah Department of Transportation. Retrieved 27 April 2008.