Idaho State Highway 81

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State Highway 81 marker

State Highway 81

Map
Route information
Maintained by ITD
Length33.978 mi[1] (54.682 km)
Existed1972–present
Major junctions
South end SH-77 in Malta
Major intersections SH-77 in Declo
North end US 30 in Burley
Location
CountryUnited States
StateIdaho
CountiesCassia
Highway system
  • Idaho State Highway System
← SH-79→ I-84

State Highway 81 (SH-81) is a

Interstate 84
(I-84) at the Yale Interchange.

Prior to its designation as SH-81 in 1972, the highway was part of

U.S. Route 30S (US-30S), a multi-state national highway that traveled from Burley to Granger, Wyoming.[2]

Route description

State Highway 81 begins at an intersection with

Interstate 84 Business) south of Burley Municipal Airport on the banks of the Snake River, just east of downtown Burley.[1][3]

History

Interstate 80N (later I-84) in 1970,[5] and decommissioned entirely in 1972.[6] SH-81 was established by the Idaho State Board of Highway Directors on September 12, 1972, to preserve state maintenance of the highway between Burley and the Utah state line.[2][7]

In 1983, the Idaho Transportation Board studied an extension of SH-81 from Burley to Twin Falls to replace an existing section of US 30.[8] It was later truncated in the early 1990s to its current terminus at SH-77 in Malta.[citation needed]

Major intersections

The entire route is in Cassia County.

Locationmi[1]kmDestinationsNotes
Malta0.0000.000
 SH-77 north (Center Street) – Albion
​15.16624.407
SH-81 Spur (Yale Road) to I-84
Declo26.21642.191
 SH-77 (Clark Street) to I-84 – Albion, Rupert
I-84 BL – Burley, Heyburn
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Spur route

Spur plate.svg

State Highway 81 Spur marker

State Highway 81 Spur

Locationnear Idahome, Idaho
Length0.337 mi[1] (542 m)
Existed1972–present[2]

ID-81 has a

Interstate 84, traveling 0.337 miles (0.542 km) east along Yale Road to the Yale Interchange.[1][3]

See also

References

  1. ^ a b c d e "Milepoint Log: State Highway 81" (PDF). Idaho Transportation Department. January 26, 2016. Retrieved February 17, 2017.
  2. ^ a b c "Minutes of the Regular Meeting of the Idaho Board of Highway Directors" (PDF). Idaho State Board of Highway Directors. September 12, 1972. p. 212. Retrieved February 21, 2017.
  3. ^ a b Google (February 17, 2017). "State Highway 81" (Map). Google Maps. Google. Retrieved February 17, 2017.
  4. OCLC 32889555. Retrieved November 7, 2013 – via Wikimedia Commons
    .
  5. American Association of State Highway Officials
    . p. 6. Retrieved February 17, 2017 – via Wikimedia Commons.
  6. American Association of State Highway Officials
    . p. 4. Retrieved February 17, 2017 – via Wikisource.
  7. ^ Idaho, 1972 Official Highway Map (Map). Cartography by Rand McNally. Idaho Transportation Department. 1972. § M5.
  8. ^ "Minutes of the Regular Meeting and East Idaho Tour of the Idaho Transportation Board, October 17–21, 1983" (PDF). Idaho Transportation Department. October 17, 1983. p. 239. Retrieved February 10, 2023.

External links

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Media related to Idaho State Highway 81 at Wikimedia Commons

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