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Mountain Passes—Southwest Idaho
Map of Southwest Idaho Between I-84B Burley/Heyburn; ID 24 and Exit 216 (1 mile east of the Heyburn area). Road maintenance work is in progress. There is work on the shoulder. People are working in the median. The roadway is reduced to one lane. The left lane is closed. Reduce your speed. Observe the signs. From 8:00AM MDT to 4:30PM MDT on Monday, Tuesday, Wednesday and Thursday. Until Thursday, at about 4:30PM MDT. Between Exit 114 (5 miles west of the Glenns Ferry area) and Exit 121 (near Glenns Ferry). The road is being reconstructed. Eastbound traffic. The right lane is closed. Westbound traffic. The left lane is closed. Width limit 14'0". Speed limit 65 MPH. Until August 21, 2021 at about 11:59PM MDT. Between ID 77; ID 25 and I-86 (6 to 9 miles east of the Heyburn area). There is work on the shoulder. Until June 30, 2022 at about 7:00PM MDT. 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 Smith's Ferry Drive - High Valley Road and Round Valley Road (13 miles south of the Cascade area). Major road construction work is in progress. Until May 27, 2021 at about 11:59PM MDT. Between Exit 165 and Exit 173 (4 miles east of the Jerome area). Road construction work is in progress. There is a width limit in effect. The road is being repaved. There is work on the shoulder. People are working in the median. Reduce your speed. The roadway is reduced to one lane. The left lane is closed. Consider using an alternate route. Speed limit 65 MPH. Width limit 12'0". Until July 15, 2021 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 Redfish Lake Road (Stanley) and US 93 (20 miles north of the Clayton area). There is danger of a rock fall. Drive with extreme caution. Between ID 78 and Locust Lane (14 miles south of the Nampa area). The road is rough. Between ID 27 (2 miles west of Burley) and ID 24; I-84 (1 mile east of Heyburn). A Severe Thunderstorm Warning is in effect. For the next hour. Between US 91 (2 miles south of the Blackfoot area) and US 26 (1 mile north of Blackfoot). A Severe Thunderstorm Warning is in effect. For the next hour. Between Munson Loop Road and I-15B Blackfoot (6 miles west of the Blackfoot area). A Severe Thunderstorm Warning is in effect. For the next hour. Between Bridge Street and Cottonwood Lane (near Blackfoot). A Severe Thunderstorm Warning is in effect. For the next hour. Between I-86B American Falls and US 26. A Severe Thunderstorm Warning is in effect. For the next hour. Between I-84; I-84B Burley/Heyburn (near Heyburn) and ID 25 (Paul). A Severe Thunderstorm Warning is in effect. For the next hour. Between ID 37 and the end of I-86B American Falls. A Severe Thunderstorm Warning is in effect. For the next hour. Between 1000 South Road (4 miles north of the Malta area) and I-84B Burley/Heyburn (Burley). A Severe Thunderstorm Warning is in effect. For the next hour. Between Exit 28: 10th Street (Caldwell) and Exit 33 (near Nampa). Road construction work is in progress. The right shoulder is closed. The road is being repaved. Reduce your speed. There is a width limit in effect. The roadway is reduced to one lane. Speed limit 55 MPH. Width limit 16'0". Until July 1, 2021 at about 6:00AM MDT. Between US 93 (Arco) and Argon National Engineering Lab Road (28 miles west of the Idaho Falls area). Look out for large animals on the roadway. Between I-84 (37 miles west of the American Falls area) and I-15 (Pocatello). A Severe Thunderstorm Warning is in effect. For the next hour. Between North Linder Road and North Locust Grove Road (near Eagle). Road construction work is in progress. There is work on the shoulder. The roadway is reduced to one lane. The right lane is closed. Expect delays. Speed limit 45 MPH. Expect 15 - minute delays. Until July 5, 2021 at about 11:59PM MDT. Between I-15 and the end of I-15B Pocatello. A Severe Thunderstorm Warning is in effect. For the next hour. Between ID 25 (6 miles west of the Burley area) and Exit 245: 1400S Road (26 miles east of the Heyburn area). A Severe Thunderstorm Warning is in effect. For the next hour. Between I-84; I-84B Burley/Heyburn (near Heyburn) and South 1150 East Road (10 miles west of the Dietrich area). A Severe Thunderstorm Warning is in effect. For the next hour. Between Anderson Road (2 miles south of the Albion area) and I-84; ID 25 (2 miles north of the Declo area). A Severe Thunderstorm Warning is in effect. For the next hour. Between US 20 and The Butte - Jefferson County Line (10 to 43 miles west of the Mud Lake area). Look out for large animals on the roadway. Between Lava Lake Road (16 miles north of the Carey area) and US 20 (Arco). Look out for large animals on the roadway. Between McGowan Creek Road (13 miles south of the Challis area) and McKim Creek Road (20 miles north of the Challis area). Look out for large animals on the roadway. Between ID 24 and ID 77 (4 miles east of the Rupert area). A Severe Thunderstorm Warning is in effect. For the next hour. Between Rock Creek Road and I-86; I-86B American Falls. A Severe Thunderstorm Warning is in effect. For the next hour. Between Exit 63: Portneuf Road (Pocatello) and Northbound Blackfoot Rest Area (2 miles north of the Blackfoot area). A Severe Thunderstorm Warning is in effect. For the next hour. Between I-86 and I-15B Pocatello. A Severe Thunderstorm Warning is in effect. For the next hour. Between Frontage Road and Main Street and West Boulevard (near Jerome). Road construction work is in progress. There is a width limit in effect. The road is being repaved. Bridge construction work is in progress. There is work on the shoulder. The roadway is reduced to two lanes. The right lane is closed. The left lane is closed. Look out for flaggers. A detour is in operation. Reduce your speed. Speed limit 35 MPH. Width limit 12'6". Until May 28, 2021 at about 5:00PM MDT. Between State Street and Riverside Drive (Eagle). Road construction work is in progress. The roadway is reduced to one lane. From 10:00PM MDT to 6:00AM MDT on weekends and from 10:00PM MDT to 5:00AM MDT on weekdays. Until September 20, 2021 at about 5:00AM MDT. Between Round Valley Road (10 miles south of the Cascade area) and Lenora Street (McCall). The road is rough. Look out for potholes. Drive carefully. Between ID 28 and Bannock Pass (13 miles north of the Leadore area). Road maintenance work is in progress. Until June 30, 2021 at about 5:00PM MDT. Between ID 28 and Bannock Pass (13 miles north of the Leadore area). Road maintenance work is in progress. Until June 30, 2021 at about 5:00PM MDT. Between ID 27; I-84B Burley/Heyburn and Exit 216 (5 miles east of the Heyburn area). Road maintenance work is in progress. There is a width limit in effect. The roadway is reduced to one lane. The right lane is closed. Bridge maintenance work is in progress. There is work on the shoulder. Width limit 12'0". Until May 21, 2021 at about 5:30PM MDT. Between Oak Street (Shelley) and Heyrend Way (near Idaho Falls). Road construction work is in progress. There is work on the shoulder. Speed restrictions are in force. Consider using an alternate route. Speed limit 45 MPH. Until August 13, 2021 at about 6:00PM MDT. Between I-15 and The East Holbrook City Limits (21 miles west of the Malad City area). Look out for mobile maintenance operations. From 7:00AM MDT to 5:00PM MDT on Monday, Tuesday, Wednesday and Thursday. Until Thursday, at about 5:00PM 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 ID 21 (Stanley) and Squaw Creek Road (5 miles south of the Clayton area). Look out for large animals on the roadway. Between North Linder Road and North Meridian Road (near Eagle). Road construction work is in progress. There are alternating lane closures. There is work on the shoulder. Consider using an alternate route. Speed restrictions are in force. Speed limit 45 MPH. Until October 1, 2021 at about 6:00PM MDT. Between US 93 (Arco) and New Sweden School Road (near Idaho Falls). Look out for mobile maintenance operations. Look out for flaggers. A pilot car is in operation. Drive with extreme caution. Prepare to stop. Between ID 55 (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 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 I-84 and the end of I-184 (Boise). Look out for rush hour traffic. Between Cloverdale Road - Joplin Road and Eighth Street (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 (near Meridian). Look out for rush hour traffic. Between Maires Lane - D-C Bar Road and Hayden Creek Lane (12 to 17 miles north of the Leadore area). Road construction work is in progress. Width limit 12'0". Vehicle length limit 102 ft. Until July 31, 2021 at about 6:00PM MDT. Between McKim Creek Road (25 miles north of the Challis area) and Rattlesnake Creek Road (17 miles south of the Salmon area). Road maintenance work is in progress. Road construction work is in progress. Until June 30, 2021 at about 5:00PM MDT.
ID 75: Galena
ID 21: Highland Valley
ID 55: Horseshoe Bend Hill
US 93: Willow Creek
ID 38: Holbrook
US 20: Cat Creek
I-84: Sweetzer
US 93: Nevada Line Pass
ID 28: Gilmore
ID 21: Mores Creek
US 95: Midvale Hill
I-15: Monida Pass
ID 21: Banner Creek
I-15: Malad
ID 71: Brownlee
ID 21: Beaver Creek
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Mountain Pass Mountain Pass