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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—Central Idaho
Map of Central Idaho Between Lakeshore Drive and Locust Lane (near Nampa). Utility work is in progress. There is work on the shoulder. From 9:00AM MDT to 3:00PM MDT on weekdays. Until October 21, 2020 at about 3:00PM MDT. Between Exit 29: US 20; Franklin Road and Exit 38: I-84B; Garrity Blvd (near Nampa). Road construction work is in progress. The roadway is reduced to one lane. Speed restrictions are in force. There is a width limit in effect. Speed limit 55 MPH. From 9:00PM MDT to 5:00AM MDT daily. Until January 28, 2021 at about 6:00AM MDT. Between Grandjean Road and Cape Horn Road (10 to 35 miles south of the Stanley area). Expect delays. Look out for a forest fire. Emergency vehicles are at the scene. Drive with extreme caution. A pilot car is in operation. Between Thompson Creek Road (3 miles south of the Clayton area) and US 93 (20 miles north of the Clayton area). Look out for large animals on the roadway. Prepare to stop. Between Jackson Street and ID 51; Third West Street (Mountain Home). Road construction work is in progress. There is work on the shoulder. The roadway is reduced to one lane. The intersecting road is closed. Look out for loose gravel on the roadway. There is a width limit in effect. Width limit 14'0". Until October 2, 2020 at about 11:59PM MDT. Between Exit 309: Science Drive (Idaho Falls) and Burton Road (1 mile west of the Rexburg area). Bridge construction work is in progress. A lane is closed intermittently. Width limit 14'0". Until September 30, 2020 at about 7:00PM 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 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 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 Exit 89: US 91; Interstate 15 Business (1 mile south of the Blackfoot area) and Exit 98: Lambert Road (Blackfoot). The entrance ramp is closed. Southbound traffic. A detour is in operation. Until Friday, at about 11:59PM MDT. Between Mores Creek Summit and Crooked River Road (12 to 14 miles north of the Idaho City area). Road maintenance work is in progress. The roadway is reduced to one lane. Look out for flaggers. Until today at about 4:00PM 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 US 20 (5 miles west of the Atomic City area) and Section Road (7 miles east of the Atomic City area). Look out for construction work. The road is being repaved. The roadway is reduced to one lane. The road is rough. Look out for flaggers. A pilot car is in operation. No passing. Speed limit 50 MPH. Width limit 14'6". Expect 15 - minute delays. Until October 30, 2020 at about 7:00PM MDT. Between ID 78 and Sunnyslope Road (near Marsing). Road construction work is in progress. The roadway is reduced to one lane. Observe the signals. Look out for flaggers. Expect delays. There is a width limit in effect. Expect 10 - minute delays. Width limit 14'0". Until September 30, 2020 at about 7:00PM MDT. Between Spurwing Way (1 mile west of the Eagle area) and Jerico Road (Eagle). Road construction work is in progress. There is work on the shoulder. Look out for flaggers. Until October 30, 2020 at about 11:59PM MDT. Between US 26; Yellowstone Avenue and I-15; US 20 (Idaho Falls). The road is being repaved. Look out for flaggers. Look out for construction work. Speed limit 35 MPH. Until September 30, 2020 at about 11:59PM MDT. Between Exit 80: Fort Hall and Exit 98: Lambert Road (2 miles south of the Blackfoot area). Bridge construction work is in progress. The roadway is reduced to one lane. Traffic is heavy. Construction traffic may be merging. There is a width limit in effect. Speed restrictions are in force. Speed limit 65 MPH. Width limit 14'6". Between Old Highway 91 and 2000 South Road; Menan Butte Road (13 to 14 miles east of the Mud Lake area). Road construction work is in progress. Look out for temporary traffic lights. Width limit 16'0". Until October 16, 2020 at about 6:00PM MDT. Between Exit 112: I-84B and Exit 125: 18th East Street (5 miles west of the Glenns Ferry area). Road construction work is in progress. The roadway is reduced to one lane. There is a width limit in effect. Speed restrictions are in force. Speed limit 70 MPH. Width limit 14'0". Until October 30, 2020 at about 11:59PM MDT. Between Pollock Road and Sheep Creek Rest Area (4 to 5 miles south of the Riggins area). There is work on the shoulder. Look out for flaggers. Speed restrictions are in force. Until October 20, 2020 at about 6:00PM MDT. Between US Route 95 Business (6 miles north of the Craigmont area) and Winchester-Culdesac Road (7 miles south of the Culdesac area). Road construction work is in progress. Bridge construction work is in progress. There is work on the shoulder. Expect delays. Look out for flaggers. Speed restrictions are in force. There is a width limit in effect. Speed limit 35 MPH. Width limit 13'0". Until November 1, 2020 at about 6:00PM PDT. Between Exit 135: ID 48 and Exit 143: ID 33 (4 to 5 miles south of the Hamer area). Look out for construction work. Width limit 16'0". Until Friday, at about 12:00PM MDT. Between Old Highway 91 and 2000 South Road; Menan Butte Road (13 to 15 miles west of the Rexburg area). Be aware of the animal crossing area. Drive with extreme caution. Between Smith's Ferry Drive - High Valley Road and Round Valley Road (12 to 13 miles south of the Cascade area). The road is closed to traffic due to road construction work. The roadway is reduced to one lane. Look out for temporary traffic lights. There is a width limit in effect. Speed restrictions are in force. Expect delays. Speed limit 25 MPH. Width limit 13'0". From 10:00AM MDT to 2:00PM MDT on Monday, Tuesday, Wednesday and Thursday. Until November 15, 2020 at about 11:59PM MDT. Between ID 16 and North Linder Road (1 to 3 miles west of the Eagle area). Road construction work is in progress. There is work on the shoulder. Until November 30, 2020 at about 11:59PM MDT. Between Jerico Road (near Eagle) and ID 55 (Boise). Road construction work is in progress. There is work on the shoulder. There is a width limit in effect. Width limit 11'0". Until November 18, 2020 at about 8:00PM 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. Between Westbound Blacks Creek Rest Area and The Boise Port of Entry (2 to 5 miles east of the Boise area). Road construction work is in progress. The intersecting road is closed. Until September 27, 2020 at about 12:00PM MDT. Between ID 55; Eagle Road (Eagle) and US 20; Glenwood Street (Garden City). Look out for rush hour traffic. Between US 20 (Arco) and Hammond Lane (near Challis). Look out for large animals on the roadway. Between Bellin Road and I-15; I-15B (Idaho Falls). Look out for construction work. The road is being repaved. Look out for flaggers. Speed limit 35 MPH. Until September 30, 2020 at about 11:59PM MDT. Between Eleventh Avenue North Extension (5 miles east of the Caldwell area) and North Fox Run Avenue (near Eagle). Look out for rush hour traffic. Between Prairie Creek Road and King Creek Road (16 to 17 miles north of the Ketchum area). Road construction work is in progress. Bridge construction work is in progress. The roadway is reduced to one lane. Look out for temporary traffic lights. Speed restrictions are in force. There is a width limit in effect. Speed limit 35 MPH. Width limit 11'0". Until October 31, 2020 at about 9:00PM MDT. Between I-84 and US 20 (Boise). Look out for rush hour traffic. Between Cloverdale Road - Joplin Road and I-184 (Boise). Look out for rush hour traffic. Between I-84 (Meridian) and US 20 (Boise). Look out for rush hour traffic. Between Exit 28: 10th Street (Caldwell) and Exit 35: Northside Boulevard (Nampa). Look out for rush hour traffic. Between Exit 36 (Nampa) and Exit 44: ID 69 (near Meridian). Look out for rush hour traffic. Between ID 3 and Oviatt Creek Road (5 miles east of the Bovill area). Road construction work is in progress. The road is being repaved. The roadway is reduced to one lane. Expect delays. A pilot car is in operation. Look out for flaggers. There is a width limit in effect. Width limit 12'0". Expect 15 - minute delays. Until tomorrow at about 6:00PM PDT. Between ID 3 and Oviatt Creek Road (5 miles east of the Bovill area). Road construction work is in progress. The road is being repaved. The roadway is reduced to one lane. Expect delays. A pilot car is in operation. Look out for flaggers. There is a width limit in effect. Width limit 12'0". Expect 15 - minute delays. Until tomorrow at about 6:00PM PDT.
ID 21: Banner Creek
ID 28: Gilmore
ID 21: Highland Valley
US 93: Lost Trail Pass
US 95: White Bird Hill
ID 75: Galena
I-15: Monida Pass
ID 21: Mores Creek
ID 21: Beaver Creek
ID 71: Brownlee
ID 29: Bannock Pass
US 95: Midvale Hill
US 12: Lolo Pass
ID 55: Horseshoe Bend Hill
US 20: Cat Creek
US 95: Lewiston Hill
US 93: Willow Creek
Google Static Map Image
Mountain Pass Mountain Pass