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Mountain Passes—Southwest Idaho
Map of Southwest Idaho Between 450 West Road (3 miles west of the Burley area) and Park Avenue (Burley). Road construction work is in progress. The road is being repaved. Look out for flaggers. Reduce your speed. There is a width limit in effect. Speed limit 35 MPH. Width limit 10'0". From 8:00AM MDT to 6:00PM MDT on weekdays. Until October 31, 2020 at about 6:00PM 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). Look out for a forest fire. Emergency vehicles are at the scene. Drive with extreme caution. 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 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 15: Raft River and Exit 36: ID 37; Interstate 86 Business (1 to 22 miles west of the American Falls area). Road construction work is in progress. The road is being repaved. Road maintenance work is in progress. The roadway is reduced to one lane. Speed limit 65 MPH. Width limit 14'0". Until October 1, 2020 at about 7:00PM 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 Exit 165: ID 25 and Exit 173: US 93 (4 miles east of the Jerome area). Road construction work is in progress. There is work on the shoulder. People are working in the median. The road is being repaved. Observe the signs. The roadway is reduced to one lane. The left lane is closed. Consider using an alternate route. Speed restrictions are in force. There is a width limit in effect. Speed limit 65 MPH. Width limit 12'0". Until October 15, 2020 at about 5:30PM 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 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 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 September 25, 2020 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 Exit 194: ID 25; Ridgeway Road and Exit 201: ID 25; Kasota Road (3 to 6 miles east of the Hazelton area). Road construction work is in progress. Road maintenance work is in progress. Look out for mobile maintenance operations. Bridge maintenance work is in progress. Bridge construction work is in progress. A seal coat treatment has been applied. The roadway is reduced to one lane. The right lane is closed. Speed restrictions are in force. There is a width limit in effect. Speed limit 65 MPH. Width limit 12'0". Until September 30, 2020 at about 6:00PM MDT. Between Exit 216: ID 25; ID 77 and Exit 228 (10 to 12 miles east of the Heyburn area). Road construction work is in progress. The road is being repaved. The roadway is reduced to two lanes. Follow the signs. Speed restrictions are in force. There is a width limit in effect. Speed limit 70 MPH. Width limit 12'0". Until November 30, 2020 at about 8:00PM MDT. Between Exit 1: I-84 and Eastbound Coldwater Rest Area (22 to 37 miles west of the American Falls area). Road construction work is in progress. The road is being repaved. The roadway is reduced to two lanes. Follow the signs. Speed restrictions are in force. There is a width limit in effect. Speed limit 70 MPH. Width limit 12'0". Until November 30, 2020 at about 8:00PM MDT. 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 300 South Road and 100 South Road (5 to 6 miles north of the Twin Falls area). Road construction work is in progress. Bridge construction work is in progress. There is work on the shoulder. Look out for temporary traffic lights. Look out for flaggers. The roadway is reduced to one lane. Expect delays. Speed restrictions are in force. There is a width limit in effect. Speed limit 35 MPH. Width limit 12'0". Expect 10 - minute delays. Until Tuesday, at about 7:00PM 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 Exit 165: ID 25 and Eastbound Jerome Rest Area (near Jerome). Road construction work is in progress. Speed restrictions are in force. Speed limit 55 MPH. Until October 15, 2020 at about 7:00PM 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 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 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 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.
ID 21: Banner Creek
ID 28: Gilmore
ID 21: Highland Valley
ID 38: Holbrook
US 93: Nevada Line Pass
ID 75: Galena
I-15: Monida Pass
ID 21: Mores Creek
ID 21: Beaver Creek
ID 71: Brownlee
US 95: Midvale Hill
ID 55: Horseshoe Bend Hill
I-15: Malad
US 20: Cat Creek
I-84: Sweetzer
US 93: Willow Creek
Google Static Map Image
Mountain Pass Mountain Pass