It also has a short spur route connecting the highway to Interstate 84 (I-84) at the Yale Interchange.

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.

The highway continues west along the southern side of the Snake River, parallel to the Eastern Idaho Railroad.

[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.

[1][3] Media related to Idaho State Highway 81 at Wikimedia Commons