Idaho Transportation Department Logo Idaho Transportation Department   Highway Info
Highways with Mountain Passes
US 12 1 mountain pass
I-15 2 mountain passes
US 20 2 mountain passes
ID 21 4 mountain passes
ID 28 1 mountain pass
ID 29 1 mountain pass
US 30 3 mountain passes
ID 31 1 mountain pass
ID 33 1 mountain pass
ID 36 1 mountain pass
ID 38 1 mountain pass
ID 55 1 mountain pass
ID 71 1 mountain pass
ID 75 1 mountain pass
I-84 1 mountain pass
ID 87 1 mountain pass
US 89 1 mountain pass
I-90 2 mountain passes
US 93 3 mountain passes
US 95 3 mountain passes
Mountain Passes—Statewide
Map of Statewide Between Westbound Huetter Rest Area and Exit 17: Mullan Road (near Coeur d'Alene). Night time construction work is in progress. A lane is closed. Until October 27, 2017 at about 5:00AM PDT. Between Challis Avenue; Sunset Street (Arco) and Spar Canyon Road (21 miles south of the Challis area). Watch for deer on the roadway. Look out for large animals on the roadway. Drive with extreme caution. Between US 30 and ID 52 (1 mile east of the New Plymouth area). The road is closed to traffic. Road construction work is in progress. Until October 31, 2017 at about 7:00PM MDT. Between Exit 173: US 93 (9 miles west of the Hazelton area) and Exit 201: ID 25; Kasota Road (4 miles east of the Hazelton area). Road construction work is in progress. The roadway is reduced to two lanes. The road is being repaved. Ramp restrictions are in force. Speed restrictions are in force. There is a width limit in effect. Speed limit 70 MPH. Width limit 12'0". Until November 17, 2017 at about 8:00PM MDT. Between Iest Road and US 20 (1 mile south of the Parma area). The road is closed to traffic. Bridge construction work is in progress. Look out for flaggers. Speed restrictions are in force. The intersecting road is closed. Speed limit 45 MPH. Until December 1, 2017 at about 7:00PM MDT.
US 89: Geneva Summit
US 93: Willow Creek Summit
I-90: Fourth of July Pass
US 93: Lost Trail Pass
I-90: Lookout Pass
ID 21: Mores Creek Summit
US 12: Lolo Pass
US 95: Midvale Hill Summit
ID 36: Emigration Pass
US 20: Targee Pass
US 30: Border Summit
ID 38: Holbrook Summit
ID 21: Beaver Creek Summit
ID 71: Brownlee Summit
ID 21: Banner Creek Summit
ID 29: Bannock Pass
ID 28: Gilmore Summit
US 95: Lewiston Hill Summit
US 93: Nevada Line Pass
I-15: Monida Pass
ID 31: Pine Creek Pass
I-84: Sweetzer Summit
ID 87: Reynolds Pass
ID 75: Galena Summit
ID 21: Highland Valley Summit
US 20: Cat Creek Summit
ID 33: Teton Pass
US 95: White Bird Hill Summit
ID 55: Horseshoe Bend Hill Summit
US 30: Georgetown Summit
US 30: Fish Creek Summit
I-15: Malad Summit
Google Static Map Image
Mountain Pass Mountain Pass