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 Washington State Line and US 95. The roadway is reduced to one lane. Look out for flaggers. Drive with extreme caution. From 6:00AM PDT to 2:00PM PDT on Monday, Tuesday, Wednesday and Thursday. For the next two weeks. Between Blue Haven Lane and Prairie Creek Road (14 miles north of the Ketchum area). Look out for mobile maintenance operations. There are alternating lane closures. Look out for flaggers. Reduce your speed. From 7:00PM MDT to 5:30PM MDT on Monday, Tuesday, Wednesday and Thursday. Until August 28, 2019 at about 5:30PM MDT. 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 Georgetown Summit (3 miles west of the Georgetown area) and Nounan Road (near Georgetown). Major road construction work is in progress. Road construction work is in progress. There is a width limit in effect because of construction work and due to road work. Width limit 12'0". Until September 30, 2019 at about 11:59PM MDT. Between ID 45 (28 miles east of the Marsing area) and ID 167 (near Grand View). Look out for mobile maintenance operations. There is work on the shoulder. For the next week. 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 Pine Haven Drive (3 miles west of the Island Park area) and Box Canyon Campground Road (near Island Park). Look out for mobile maintenance operations. Drive with extreme caution. Between Robinson Bar Road (15 miles north of the Stanley area) and Slate Creek Road (15 miles south of the Clayton area). Road construction work is in progress. The roadway is reduced to one lane. Follow the signs. Look out for flaggers. Look out for temporary traffic lights. Reduce your speed. Width limit 14'0". From 7:30AM MDT to 12:30PM MDT on Friday and from 7:30AM MDT to 5:30PM MDT on Monday, Tuesday, Wednesday and Thursday. Until October 4, 2019 at about 5:30PM MDT. Between Exit 3: US 95 and Exit 9: US 30 (2 to 4 miles east of the Fruitland area). Look out for mobile maintenance operations. Until tomorrow at about 4:00PM MDT. Between ID 33 and Argon National Engineering Lab Road (3 to 23 miles east of the Butte City area). Road maintenance work is in progress. Look out for a slow moving maintenance vehicle. There is work on the shoulder. Observe the signs. Follow the signs. Until August 31, 2019 at about 7:00PM MDT. 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.
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
Google Static Map Image
Mountain Pass Mountain Pass