Idaho State Highway 22

State Highway 22 marker
State Highway 22
Map
SH-22 highlighted in red
Route information
Maintained by ITD
Length43.936 mi[1] (70.708 km)
Major junctions
South end SH-33 near Howe
Major intersections SH-28 near Blue Dome
North end I-15 in Dubois
Location
CountryUnited States
StateIdaho
CountiesButte, Clark, Jefferson
Highway system
  • Idaho State Highway System
SH-21 SH-24

State Highway 22 (SH-22) is a 43.936-mile-long (70.708 km) state highway in Idaho from SH-33 to Interstate 15 (I-15) in Dubois.

Route description

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SH-22 begins at SH-33 near Arco and travels northeast across the desert before intersecting SH-28 and slowly bending east, passing by some farmland. The highway ends in the city of Dubois at a diamond interchange with I-15.[1][2]

History

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The current SH-22 bears no resemblance to its original configuration. The route of the original SH-22 was based on Sampson Trails G and H from Mountain Home to Trude,[3] which are essentially the route of today's US 20 from Mountain Home through Arco to Idaho Falls and US 26 east from there.

The current configuration is based on the original SH-29 from the 1937 map.[4]

Junction list

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CountyLocationmi[1]kmDestinationsNotes
Butte0.0000.000 SH-33Eastern end of SH-33 overlap
Clark13.58821.868 SH-28 – Salmon
Jefferson
No major junctions
Clark43.47869.971Small RoadOld US 91
Dubois43.93670.708 I-15 – Idaho Falls, ButteI-15 exit 167; eastern terminus.
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also

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References

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  1. ^ a b c Idaho Transportation Department (January 2, 2016). "State Highway 22 Milepoint Log" (PDF). Idaho Transportation Department. Retrieved February 15, 2017.
  2. ^ "State Highway 22" (Map). Google Maps. Retrieved 20 July 2012.
  3. ^ List of state highways in Idaho#History
  4. ^ Rand McNally and Company, Road map: Idaho, Mont., Wyo., published by Texaco, 1937
[edit]
KML is from Wikidata

Media related to Idaho State Highway 22 at Wikimedia Commons