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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). Major road construction work is in progress. The road is being repaved. The roadway is reduced to two lanes. Speed restrictions are in force. There is a width limit in effect. Ramp restrictions are in force. Speed limit 70 MPH. Width limit 14'0". Until November 2, 2018 at about 7:00PM MDT. Between Hoff Road and Fleetwood Drive (2 to 7 miles west of the Blackfoot area). The roadway is reduced to one lane. Road construction work is in progress. The road is being repaved. Bridge construction work is in progress. There is work on the shoulder. Expect delays. Consider using an alternate route. Speed restrictions are in force. There is a width limit in effect. Expect 15 - minute delays. Speed limit 35 MPH. Width limit 11'0". Until June 30, 2018 at about 5:30PM MDT. Between Exit 36: US 91; Hawkins Road (3 miles south of the Arimo area) and Exit 57: Interstate 15 Business (near Inkom). The roadway is reduced to one lane. Road construction work is in progress. The road is being repaved. Bridge maintenance work is in progress. There is work on the shoulder. People are working in the median. Look out for flaggers. Speed restrictions are in force. There is a width limit in effect. Speed limit 65 MPH. Width limit 12'5". Until October 15, 2018 at about 6:00PM MDT. Between Black's Bridge Road; Big Willow Road and Southeast First Avenue (9 miles east of the Payette area). The road is closed to traffic due to bridge construction work. A detour is in operation. Truck restrictions are in force. Until May 18, 2018 at about 11:59PM MDT. 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. Between Salmon Falls Creek Reservoir Road and 1900 North Road (6 to 16 miles south of the Hollister area). Look out for large animals on the roadway. Drive with extreme caution. 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 Tammarack Road and McAbee Falls Road (near Priest River). Road maintenance work is in progress. Expect single line traffic alternating directions. Look out for flaggers. From 7:00AM PDT to 2:30PM PDT on weekdays. Between ID 28 and The Montana State Line (13 miles north of the Leadore area). Travel is not advised. Axle weight limit 5,000 lbs. 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.
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