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Mountain Passes—Statewide
Map of Statewide Between Thompson Creek Road (3 miles south of the Clayton area) and US 93 (20 miles north of the Clayton area). Look out for large animals on the roadway. Prepare to stop. Between Exit 150: Hamer Road (2 miles north of the Hamer area) and Exit 167: ID 22 (5 miles south of the Dubois area). Road construction work is in progress. Width limit 16'0". Until August 28, 2020 at about 11:59PM MDT. Between First South Street and 4150 East Road (near Rigby). Major road construction work is in progress. Entire intersection. The roadway is reduced to one lane. Reduce your speed. Width limit 12'0". Speed limit 35 MPH. Expect 15 - minute delays. Until September 4, 2020 at about 11:59PM MDT. Between Old Highway 91 and 2000 South Road; Menan Butte Road (13 to 15 miles west of the Rexburg area). Be aware of the animal crossing area. Drive with extreme caution.
ID 21: Banner Creek
ID 28: Gilmore
ID 21: Highland Valley
US 93: Lost Trail Pass
I-90: Fourth of July Pass
ID 38: Holbrook
ID 36: Emigration Pass
US 95: White Bird Hill
US 93: Nevada Line Pass
ID 87: Reynolds Pass
US 20: Targee Pass
ID 75: Galena
US 89: Geneva
I-15: Monida Pass
ID 21: Mores Creek
ID 21: Beaver Creek
ID 71: Brownlee
ID 29: Bannock Pass
US 95: Midvale Hill
US 30: Georgetown
US 12: Lolo Pass
ID 55: Horseshoe Bend Hill
ID 33: Teton Pass
I-90: Lookout Pass
US 30: Border
ID 31: Pine Creek Pass
US 30: Fish Creek
I-15: Malad
US 20: Cat Creek
I-84: Sweetzer
US 95: Lewiston Hill
US 93: Willow Creek
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Mountain Pass Mountain Pass