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Mountain Passes—Statewide
Map of Statewide Between Exit 29: US 20; Franklin Road and Exit 38: I-84B; Garrity Blvd (near Nampa). Road construction work is in progress. The roadway is reduced to one lane. Speed restrictions are in force. Speed limit 55 MPH. From 10:00PM MST to 6:00AM MST daily. Until January 28, 2021 at about 6:00AM MST. Between 800 North Road (6 miles east of the St. Anthony area) and 3500 East Road (near Ashton). Look out for potholes. Drive with extreme caution. A mandatory speed limit is in force. 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. Between 3000 East Road (1 mile west of the Teton area) and 12000 East Raod (2 miles east of the Newdale area). Look out for potholes. Drive with extreme caution. A mandatory speed limit is in force. Between 2200 North Road and US 93 (3 miles west of the Arco area). Look out for a herd of animals on the roadway. Drive with extreme caution. Between Exit 28: 10th Street (Caldwell) and Exit 35: Northside Boulevard (Nampa). Look out for rush hour traffic.
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