Idaho State Highway 81

State Highway 81 begins at an intersection with SH-77 in Malta, located north of the Utah state line. The highway travels north, following the eastern foothills of the Cotterell Mountains and the Raft River valley, through Idahome to Interstate 84, which it parallels for several miles heading northwest. SH-81 completes its turn west and heads towards Declo, intersecting SH-77. The highway continues west along the southern side of the Snake River, parallel to the Eastern Idaho Railroad. It terminates at an intersection with US-30 (co-signed with Interstate 84 Business) south of Burley Municipal Airport on the banks of the Snake River, just east of downtown Burley.{{google maps |title=State Highway 81 |url=https://www.google.com/maps/dir/42.3065808,-113.3693237/42.5370118,-113.7690392/@42.42369,-113.8483611,10z/am=t/data=!3m1!4b1 |accessdate=February 17, 2017}}

U.S. Route 30S, which traveled from Burley to Granger, Wyoming via Logan, Utah, was established in 1926 as an alternative route to U.S. Route 30N.{{cite map |author1= Bureau of Public Roads |author2= American Association of State Highway Officials |date= November 11, 1926 |title= United States System of Highways Adopted for Uniform Marking by the American Association of State Highway Officials |url= https://commons.wikimedia.org/wiki/File:United_States_System_of_Highways_Adopted_for_Uniform_Marking_by_the_American_Association_of_State_Highway_Officials.jpg |scale= 1:7,000,000 |location= Washington, DC |publisher= United States Geological Survey |oclc= 32889555 |access-date= November 7, 2013 |via= Wikimedia Commons |name-list-style= amp}} It was moved to the completed Interstate 80N (later I-84) in 1970,{{AASHTO minutes |year=1970A |page=6 |accessdate=February 17, 2017 |link=yes}} and decommissioned entirely in 1972.{{AASHTO minutes |year=1972S |page=4 |accessdate=February 17, 2017 |link=no}} 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.{{cite web |date=September 12, 1972 |title=Minutes of the Regular Meeting of the Idaho Board of Highway Directors |publisher=Idaho State Board of Highway Directors |page=212 |url=http://apps.itd.idaho.gov/apps/board/minutes/1972.pdf |accessdate=February 21, 2017}}{{cite map |year=1972 |title=Idaho, 1972 Official Highway Map |section=M5 |cartography=Rand McNally |publisher=Idaho Transportation Department}}

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.{{cite web |date=October 17, 1983 |title=Minutes of the Regular Meeting and East Idaho Tour of the Idaho Transportation Board, October 17–21, 1983 |page=239 |url=https://apps.itd.idaho.gov/Apps/board/minutes/1983.pdf |publisher=Idaho Transportation Department |accessdate=February 10, 2023}} It was later truncated in the early 1990s to its current terminus at SH-77 in Malta.{{citation needed|date=February 2018}}

{{Jcttop|state=ID|county=Cassia|length_ref=}}

{{IDint

|location=Malta

|mile=0.000

|road={{Jct|state=ID|ID|77|dir1=north|name1=Center Street|city1=Albion}}

|notes=

}}

{{IDint

|location=none

|mile=15.166

|road={{Jct|state=ID|ID-Spur|81|to2=to|I|84|name1=Yale Road}}

|notes=

}}

{{IDint

|location=Declo

|mile=26.216

|road={{Jct|state=ID|ID|77|to2=to|I|84|name1=Clark Street|city1=Albion|city2=Rupert}}

|notes=

}}

{{IDint

|location=Burley

|mile=33.978

|road={{Jct|state=ID|US|30|BL|84|dab2=Burley-Heyburn|city1=Burley|city2=Heyburn}}

|notes=

}}

{{Jctbtm}}

{{Infobox road small

|state=ID

|type=SH-Spur

|route=81

|location=near Idahome, Idaho

|length_mi=0.337

|length_ref=

|established=1972

|yr_ref=

}}

ID-81 has a spur route connecting the main highway to Interstate 84, traveling {{convert|0.337|mi|km}} east along Yale Road to the Yale Interchange.

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{{portal|U.S. Roads}}

• List of state highways in Idaho

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{{commons category-inline|Idaho State Highway 81}}

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Category:Transportation in Cassia County, Idaho

Category:U.S. Route 30