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Mountain Passes
I‑15 ID 55 ID 75 I‑84 I‑90 US 93 US 95
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Mountain Passes—Statewide
Map of Statewide Between Exit 173: US 93 (9 miles west of the Hazelton area) and Exit 201: ID 25; Kasota Road (5 miles east of the Hazelton area). Look out for construction work. There is work on the shoulder. People are working in the median. A lane is closed intermittently. Observe speed limits. There is a width limit in effect. Width limit 16'0". Until November 10, 2018 at about 9:00PM MDT. 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 Johnson Road and McKim Creek Road (19 miles north of the Challis area). There is danger of a rock fall. Drive with extreme caution. Between Thompson Creek Road (5 miles south of the Clayton area) and US 93 (20 miles north of the Clayton area). There is danger of a rock fall. Drive with extreme caution. Between US 20 and Eight Mile Canyon Road (38 to 43 miles west of the Mud Lake area). Look out for a herd of animals on the roadway. Drive with extreme caution. Between Redfish Lake Road (near Stanley) and Squaw Creek Road (5 miles south of the Clayton area). Look out for large animals on the roadway. Between The Warm Springs Pack Bridge and Lolo Pass Rest Area (75 to 98 miles east of the Kooskia area). The road is being repaved. The roadway is reduced to one lane. Expect delays. A pilot car is in operation. Look out for flaggers. Speed restrictions are in force. Speed limit 35 MPH. Until October 31, 2018 at about 11:59PM PDT. Between Pete King Creek Road and The Colgate Licks Rest Area (38 to 64 miles east of the Kooskia area). The roadway is reduced to one lane. Expect delays. Look out for flaggers. Speed restrictions are in force. Speed limit 45 MPH. Until October 31, 2018 at about 6:00AM PDT. Between Redfish Lake Road (near Stanley) and Squaw Creek Road (5 miles south of the Clayton area). There is danger of a rock fall. Drive with extreme caution.
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
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Mountain Pass Mountain Pass