The highway has been designated as part of The Energy Loop, a National Scenic Byway.
A second collapse on August 16, 2007, killed a Mine Safety and Health Administration investigator and two more miners, bringing the total to nine.
[2] The road from SR-32 (by 1926 US-89) in Fairview east to the Sanpete-Emery County line, near the present north end of Electric Lake, was added to the state highway system in 1915.
It was extended southeast to SR-10 in Huntington in 1918,[3] and in 1927 the state legislature numbered the Fairview-Huntington highway as SR-31.
[4] A major realignment was made in 1976, when Electric Lake was created and a new route was built to the west.