1962 Utah state route renumbering

July 2025 January 2025 Coinciding with the designation of several routes in the Interstate Highway System through Utah, the Utah State Legislature made several changes to the Utah State Route system. The bulk of these changes were not visible to the public, but were to unsigned legislative designations only. The primary effect was reserving route numbers 1 through 5 for the future corridors of the Interstate Highways in Utah. Several other routes were truncated or reassigned or split into multiple designations to allow the Interstate Highway corridors to have a single route number assigned. As very little of the Interstate Highway System had been constructed in Utah by 1962, these changes were primarily to support future construction. There were a number of cases where the legislative change enacted in 1962 would not be built and signed until years later. There were also changes made to a few unsigned highways serving state parks and institutions. Few of the changes made in 1962 are still valid today. As construction of the Interstate Highway system proceeded, additional changes were made. The legislature made a larger change in route designations in 1977, eliminating unsigned legislative designations and concurrences, in the process making most of the 1962 changes obsolete. Though dozens of changes were required, most were to support the following five major changes: State Route 1 was changed to follow the proposed route of Interstate 15 from following U.S. Route 91. While the two routes were similar, they were not identical. As a result several segments where the two routes differed were assigned new designations. State Route 2 was assigned to the Interstate 80 corridor. Route 2 had previously been used for the legislative designation of U.S. Route 89 through Logan Canyon. A significant portion of the then future I-80 corridor was designated SR-4 prior to 1962, but the two corridors had different routes through the Salt Lake Valley. New route designations were created for the segments where the two differed. State Route 3 was assigned to the then I-80N corridor (modern Interstate 84), it had previously been used for a highway along the western shore of Bear Lake (modern US-89 and SR-30). The eastern portion of the I-80N corridor had a single designation, SR-5, however the western portion had previously been split among multiple route numbers. State Route 4 was assigned to the Interstate 70 corridor. SR-4 had been assigned to a Nevada to Wyoming corridor similar, but not identical, to the route of modern I-80 (designated SR-2 with this renumbering). As the I-70 corridor would require connecting multiple previous state routes and new construction, a number of highways were truncated and re-designated to free up this corridor. State Route 5 was assigned to the proposed corridor Interstate 215. Previously SR-5 was used for the eastern portion of then U.S. Route 30S, now Interstate 84 (from Ogden through Weber Canyon to Echo). Post 1962 DesignationPre 1962 DesignationCurrent DesignationFromTo0011 State Route 10011 State Route 1I-15ArizonaHot Springs0012 State Route 1NoneI-15Hot SpringsEast of Riverside0013 State Route 10412 State Route 41I-15East of RiversideIdaho0021 State Route 20041 State Route 4I-80NevadaLake Point Junction0022 State Route 20671 State Route 67I-80Lake Point JunctionSalt Lake City0023 State Route 2NoneI-80Salt Lake CityParleys Canyon0024 State Route 20045 State Route 4I-80Parleys CanyonWyoming0031 State Route 3NoneI-84IdahoSnowville0032 State Route 30422 State Route 42I-84SnowvilleHaws Corner0033 State Route 30051 State Route 5I-84OgdenEcho Junction0041 State Route 40131 State Route 13I-70Cove FortSevier0042 State Route 40101 State Route 10I-70SalinaFremont Junction0043 State Route 4NoneI-70Fremont JunctionGreen River0044 State Route 40082 State Route 8I-70Green RiverColorado0051 State Route 5NoneI-215Parleys CanyonNorth of Salt Lake City0081 State Route 80081 State Route 8US-89, US-6SpringvilleGreen River0101 State Route 100102 State Route 10SR-10Fremont JunctionPrice0131 State Route 130021 State Route 2US-89LoganGarden City0161 State Route 160031 State Route 3SR-16, SR-30, US-89WyomingIdaho0421 State Route 420421 State Route 42SR-42, SR-30IdahoSnowville0671 State Route 67181A1 State Route 181Aex-SR-281Dixie Junior CollegeSt. George0841 State Route 840841 State Route 84SR-126RoyHot Springs0842 State Route 840012 State Route 1US-89Hot SpringsBrigham0843 State Route 840411 State Route 41SR-13BrighamEast of Riverside0851 State Route 850851 State Route 85US-91Southwest of BrighamBrigham0852 State Route 850012 State Route 1US-91BrighamIdaho1711 State Route 1710043 State Route 4SR-171MagnaSalt Lake City1712 State Route 1711711 State Route 171SR-171, I-215Salt Lake CityParleys Canyon181A1 State Route 181ANoneSR-282University of UtahSalt Lake City2011 State Route 2010042 State Route 4SR-201Lake Point JunctionMagna2012 State Route 2012011 State Route 201SR-201MagnaSalt Lake City2013 State Route 2010044 State Route 42100 SouthSalt Lake CityParleys Canyon See also State highways deleted by the Utah State Legislature in 1969 References External links Utah Department of Transportation, Highway Resolutions This site has a PDF for every state route with its former and current legislative route. Renumbering Utah State Route Renumbering, 1962 Utah State Route Renumbering, 1962 1962 renumbering Category:1962 establishments in Utah Category:1962 disestablishments in Utah Category:Highway renumbering in the United States