Idaho Transportation Department Logo Idaho Transportation Department   Highway Info
Mountain Passes—Statewide
Map of Statewide Between Long View Road (1 mile north of the McCall area) and Woodland Road (3 miles south of the New Meadows area). Road construction work is in progress. The roadway is reduced to one lane. Look out for flaggers. Speed restrictions are in force. There is a width limit in effect. Width limit 12'0". Speed limit 35 MPH. Until tomorrow at about 11:59PM MDT. Between Broadway Run Road and Elkhorn Road; River Ranch Road (near Sun Valley). Look out for long term road construction work. Bridge construction work is in progress. The roadway is reduced to two lanes. Expect delays. Speed restrictions are in force. There is a width limit in effect. Speed limit 35 MPH. Width limit 14'0". Until September 15, 2017. Between Jackson Creek Road and Whitleley Avenue (near Council). Road construction work is in progress. The roadway is reduced to one lane. Look out for flaggers. Expect delays. A detour is in operation. Expect 5 - minute delays. From 7:00AM MDT to 7:00PM MDT on weekdays. Until May 18, 2017. Between Redfish Lake Road (near Stanley) and Squaw Creek Road (5 miles south of the Clayton area). There is danger of a rock fall. Look out for large animals on the roadway. Between Challis Avenue; 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 Valley View Drive (Soda Springs) and Diamond Gulch Road (5 miles east of the Soda Springs area). The roadway is reduced to one lane. There are alternating lane closures. A lane is closed intermittently. Road construction work is in progress. A seal coat treatment has been applied. Look out for loose gravel on the roadway. Expect delays. A pilot car is in operation. Look out for flaggers. Consider using an alternate route. There is a width limit in effect. Expect 15 - minute delays. Width limit 14'0". Until November 1. Between Exit 3: Woodruff Road (9 miles south of the Malad City area) and Exit 31: ID 40; Downey Road (11 miles south of the Arimo area). The roadway is reduced to one lane. There are alternating lane closures. Look out for mobile maintenance operations. Bridge maintenance work is in progress. There is work on the shoulder. From 7:00AM MDT to 4:00PM MDT on Mondays, Tuesdays, Wednesdays and Thursdays. Until September 12. Between The Utah State Line (12 miles south of the Malad City area) and Exit 31: ID 40; Downey Road (11 miles south of the Arimo area). The roadway is reduced to one lane. A lane is closed intermittently. Look out for mobile maintenance operations. There is work on the shoulder. From 7:00AM MDT to 4:00PM MDT on Mondays, Tuesdays, Wednesdays and Thursdays. Until September 12. Between The Menan-Lorenzo Highway (3 miles east of the Rigby area) and ID 33 (Rexburg). Road construction work is in progress. Construction traffic may be merging. Speed restrictions are in force. There is a width limit in effect. Expect delays. Speed limit 55 MPH. Width limit 14'0". Expect 5 - minute delays. Until October 31. Between Avenue A and University Drive (near Boise). The road is closed to traffic due to bridge construction work. A detour is in operation. Until October 1. Between Riverside Road and Johnstone Road (near Homedale). Bridge construction work is in progress. The roadway is reduced to one lane. Observe the signals. Expect delays. There is a width limit in effect. Speed restrictions are in force. Expect 10 - minute delays. Width limit 12'0". Speed limit 25 MPH. Until July 14, 2017.
ID 31: Pine Creek Pass
US 95: Lewiston Hill Summit
ID 36: Emigration Pass
ID 87: Reynolds Pass
US 93: Willow Creek Summit
US 95: White Bird Hill Summit
US 89: Geneva Summit
ID 55: Horseshoe Bend Hill Summit
I-15: Malad Summit
ID 21: Beaver Creek Summit
I-15: Monida Pass
US 12: Lolo Pass
ID 28: Gilmore Summit
ID 21: Banner Creek Summit
ID 29: Bannock Pass
US 30: Border Summit
US 93: Lost Trail Pass
ID 38: Holbrook Summit
ID 75: Galena Summit
US 20: Targee Pass
I-84: Sweetzer Summit
ID 21: Highland Valley Summit
I-90: Lookout Pass
ID 71: Brownlee Summit
ID 33: Teton Pass
ID 21: Mores Creek Summit
US 30: Georgetown Summit
I-90: Fourth of July Pass
US 95: Midvale Hill Summit
US 93: Nevada Line Pass
US 20: Cat Creek Summit
US 30: Fish Creek Summit
Google Static Map Image
Mountain Pass Mountain Pass