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—Southeast Idaho
Map of Southeast Idaho Between Thompson Creek Road and Squaw Creek Road (4 to 5 miles south of the Clayton area). Look out for a surface water hazard. Between I-84 and East Grand Forest Drive and Technology Way (Boise). Road construction work is in progress. The roadway is reduced to one lane. Look out for flaggers. Speed restrictions are in force. Speed limit 25 MPH. Until October 1. Between Exit 54: US 20; Broadway Avenue and Exit 60: The Isaacs Canyon Interchange (near Boise). Road construction work is in progress. Bridge construction work is in progress. The roadway is reduced to one lane. Speed restrictions are in force. Speed limit 55 MPH. Until October 1. Between Exit 52: Orchard Street and Exit 57: Gowen Road (near Boise). Road construction work is in progress. Bridge construction work is in progress. The roadway is reduced to one lane. Speed restrictions are in force. Speed limit 55 MPH. From 8:00PM MST to 5:00AM MST daily. Until December 1. Between Redfish Lake Road (Stanley) and Squaw Creek Road (5 miles south of the Clayton area). There is danger of a rock fall. Between Antelope Flat Road (1 mile west of the Swan Valley area) and The Wyoming State Line (16 miles east of the Irwin area). There is danger of a rock fall. Between Poplar Road (5 miles east of the Ririe area) and The Wyoming State Line (16 miles east of the Irwin area). Look out for large animals on the roadway. Drive with extreme caution. Between Sunset Street (Arco) and Spur 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 Exit 135: ID 48 (near Roberts) and ID 33 (4 miles south of the Hamer area). Look out for large animals on the roadway. Drive with extreme caution. Between Koefoed Road and The Sage Junction Port of Entry (7 to 9 miles east of the Mud Lake area). There is work on the shoulder. From 8:00AM MST to 5:00PM MST on Mondays, Tuesdays, Wednesdays and Thursdays. Until February 6. Between Pahsimeroi Road (19 miles north of the Challis area) and Lost Trail Pass (44 miles north of the Salmon area). Look out for large animals on the roadway.
US 93: Willow Creek Summit
ID 75: Galena Summit
ID 21: Highland Valley Summit
US 89: Geneva Summit
ID 21: Beaver Creek Summit
US 93: Nevada Line Pass
ID 38: Holbrook Summit
ID 29: Bannock Pass
US 30: Border Summit
I-15: Monida Pass
US 30: Fish Creek Summit
US 20: Cat Creek Summit
ID 36: Emigration Pass
I-15: Malad Summit
ID 21: Banner Creek Summit
ID 21: Mores Creek Summit
I-84: Sweetzer Summit
ID 28: Gilmore Summit
ID 33: Teton Pass
US 20: Targee Pass
ID 31: Pine Creek Pass
ID 87: Reynolds Pass
US 30: Georgetown Summit
Google Static Map Image
Mountain Pass Mountain Pass