Talk:Interstate 15 in Utah

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Topics Interstate Highways Utah State Highways
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[edit] History notes

  • Early: SR-1, Arizona to Brigham City; SR-41, Brigham City to Idaho
  • August 20, 1962: SR-41 became part of SR-1; SR-1 north of Brigham City became SR-85
  • May 20, 1977: SR-1 became SR-15


  • 1969: state legislature moved SR-1 to I-15 south of exit 8; old route became SR-18, SR-34 through St. George, but the old alignment south of SR-18 remained until 1974
  • July 19, 1974: old route became local road (Arizona to SR-18)
  • March 23, 1973: old route became local road (exits 8 to 10)
  • July 10, 1964: old route became extended SR-212 and local road (exits 10 to north of 16)
  • May 5, 1967: old route became local road (exits 22 to 27)
  • September 27, 1965: old route became SR-58 (exits 42 to 51)
  • January 23, 1968: old route became local road (exits 51 to 57)
  • December 15, 1967: old route became SR-130 (exits 57 to 62)
  • August 28, 1970: old route became local road (exits 62 to 71)
  • May 10, 1968: old route became SR-38, SR-143, SR-76 (exits 71 to 82)
  • August 28, 1970: old route became local road (south from exit 109)
  • 1969: state legislature moved SR-1 to I-15 around Beaver; old route became SR-160 (exits 109 to 112)
  • February 14, 1964: old route became local road (exits 112 to 120)
  • October 29, 1965: old route became local road, SR-4, SR-161 (exits 129 to 135)
  • 1969: state legislature moved SR-1 to I-15 around Kanosh; old route became SR-133 (exits 146 to 158)
  • 1969: state legislature moved SR-1 to I-15 around Fillmore; old route became SR-99 (exits 163 to 167)
  • 1969: state legislature moved SR-1 to I-15 around Holden; old route became SR-26 and a spur of SR-26 (exits 174 to 178)
  • 1953: state legislature moved SR-1 to I-15 around Scipio; old route became SR-63, SR-63A (around exit 188)
  • There's a missing piece here.
  • May 8, 1987: old route became SR-78 (exit 207 to west of Levan)
  • January 23, 1968: old route became SR-163, SR-28, SR-41 (west of Levan to exit 228 - note that what was built is not what was planned then)
  • May 14, 1971: old route became SR-41, to become local road once I-15 is complete (exits 228 to south of 242)
  • December 28, 1973: old route became local road (exits north of 228 to 242)
  • September 12, 1975: old route became local road (exits north of 228 to 242) - why again?
  • Not sure when: moved SR-1 to I-15 around Santaquin; old route became SR-26 and a spur of SR-26 (exits 242 to 244)
  • August 14, 1964: old route became SR-26, SR-156, SR-8 (exits 244 to 282)
  • November 6, 1964: old route became SR-271 (exits 291 to 312)
  • March 12, 1962: old route became SR-169 (and SR-106?) (exits 312 to 317)
  • 1953: SR-1 and SR-106 swapped and separation extended (exits 317 to 330)
  • November 25, 1966: old route became SR-106 (exits 330 to 351)
  • May 20, 1977: old route became US-89, SR-13 (exits 351 to 385)
  • July 8, 1988: old route became SR-13 (exits 385 to 392; was already SR-13 south of exit 385)
  • May 16, 1980: old route became local road (north of exit 392 to Idaho)
Spurs

[edit] Assessment

This article is rated Start instead of B because the route description is far too short. For a 400-mile route, it does not go into nearly enough detail to merit B-class. -- Kéiryn (talk) 16:03, 29 May 2008 (UTC)