Idaho Transportation Department Logo Idaho Transportation Department   Highway Info
Mountain Passes—Statewide
Map of Statewide Between Bear Creek Road and Big Elk Creek Road (2 to 5 miles east of the Irwin area). Look out for debris on the roadway. Between 4200 East Road (3 miles east of the Hansen area) and 4900 East Road (3 miles east of the Murtaugh area). The roadway is reduced to one lane because the road is being repaved. A seal coat treatment has been applied. Expect delays. Look out for flaggers. A pilot car is in operation. Speed restrictions are in force. There is a width limit in effect. Look out for loose gravel on the roadway. Expect 15 - minute delays. Speed limit 40 MPH. Width limit 14'0". From 7:00AM MDT to 7:00PM MDT on Tuesday, Wednesday, Thursday and Friday. Until Friday, at about 7:00PM MDT. Between US 95 and ID 3 (7 to 11 miles east of Lewiston). The road is being repaved. Look out for loose gravel on the roadway. The road is rough. Drive with extreme caution. A pilot car is in operation. Expect delays. Look out for flaggers. The roadway is reduced to one lane. There is work on the shoulder. People are working in the median. Expect 15 - minute delays. Until September 12, 2017 at about 11:45PM PDT. Between Grandview Drive and Frontage Road (near Driggs). Water main work is in progress. Road maintenance work is in progress. Until October 13, 2017 at about 6:00PM 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. Speed restrictions are in force. The intersecting road is closed. Speed limit 45 MPH. Until December 1, 2017 at about 7:00PM MDT. Between Pine Creek Bench Road (6 miles east of the Swan Valley area) and 200 West Road (1 mile west of the Victor area). The roadway is reduced to one lane. There is work on the shoulder. Drive with extreme caution. Clearing this week. Between ID 29 (Leadore) and Lemhi Street (Salmon). Look out for mobile maintenance operations. Until September 30, 2017 at about 5:00PM MDT. Between Westbound Huetter Rest Area and Exit 17: Mullan Road (near Coeur d'Alene). Look out for long term road construction work. The roadway is reduced to two lanes. There is a width limit in effect. Width limit 15'0". Speed limit 45 MPH. 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 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 County Road 2C and Chinook Street (near Bonners Ferry). The road is rough. Between Redfish Lake Road (near Stanley) and Squaw Creek Road (5 miles south of the Clayton area). There is danger of a rock fall. Between Idaho Street and Vollmer Loop (near American Falls). The roadway is reduced to one lane. The right lane is closed. There is work on the shoulder. Speed restrictions are in force. There is a width limit in effect. Speed limit 55 MPH. Width limit 12'0". From 6:00AM MDT to 6:00PM MDT on weekdays. Until September 1, 2017 at about 6:00PM MDT. Between Exit 172: Sheep Station Road (1 mile south of the Spencer area) and Exit 180: Spenser Road (Spencer). The right lane is closed. The road is rough. There is work on the shoulder. Reduce your speed. Observe speed limits. There is a width limit in effect. Speed limit 65 MPH. For the next five months. Between US 30 (1 mile south of the Inkom area) and Exit 67: US 30; Interstate 15 Business (near Pocatello). The roadway is reduced to one lane. A lane is closed intermittently. There is work on the shoulder. People are working in the median. Speed restrictions are in force. There is a width limit in effect. Speed limit 70 MPH. Width limit 12'0". Until October 16, 2017 at about 11:59PM 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
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Mountain Pass Mountain Pass