ID-21
Banner Summit
7,056 ft
ID winter travel
Idaho mountain pass reports and road conditions
Live coverage
Idaho 511 road-condition segments, mountain-pass locations and commercial restrictions, polled every 10 minutes.
Idaho 511 may pause pass reporting outside winter operations. A 'No report' reading is shown as unknown, never as an all-clear.
Last successful poll: Oct 30, 2026, 12:10 AM UTC · Last attempt: Oct 30, 2026, 12:10 AM UTC · healthy
Current records
Road construction on I-15-BL Both Directions from Commercial St to Willow Ln. All lanes closed. 9/14/2026 7:00 AM MT to 1/8/2027 7:00 PM MT Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 12ft Length Restriction: 50ftI-15-BL · Road construction on I-15-BL Both Directions from Commercial St to Willow Ln. All lanes closed. 9/14/2026 7:00 AM MT to 1/8/2027 7:00 PM MT Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 12ft Length Restriction: 50ft · Long term bridge construction between Commercial Street and Willow Lane on the I-15 Business Loop. From September 14th to January 8th, the roadway will be closed to through traffic with a detour route using Holstein Street, Washington Avenue, and Main Street. Follow detour signs and posted speed limits. The width restriction is 12 feet and the length restriction is 50 feet for the detour route. · Width restriction: 12 feet wide · Length restriction: 50 feet longRoad closed6 min agoBridge Work on River Rd Both Directions Near Cherrylane Rd. Lane Affected. 10/5/2026 5:00 AM PT to 12/15/2026 5:00 PM PT Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 10ft Length Restriction: 30ft Activities: Consider Alternative Route. Expect Delays: Under 15 minutesRiver Rd · Bridge Work on River Rd Both Directions Near Cherrylane Rd. Lane Affected. 10/5/2026 5:00 AM PT to 12/15/2026 5:00 PM PT Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 10ft Length Restriction: 30ft Activities: Consider Alternative Route. Expect Delays: Under 15 minutes · Bridge Closed. Road Construction. Bridge Construction. Contractor will remove existing bridge and construct a new bridge in the current location. A temporary single lane detour will be constructed around the work area. Reduced to Once Lane. Delays up to 10 Minutes. Detour in Operation. Consider Alternate Route. Width Limit of 10 Feet. Length Limit of 30 Feet. Drivers must yield to oncoming traffic. Drivers must yield to oncoming traffic. · Width restriction: 10 feet wide · Length restriction: 30 feet longRestrictions in force6 min agoBridge Work on SH-21 At Mores Creek Br. MM 17. 9/11/2026 7:00 AM MT to 5/28/2027 5:00 PM MT Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 12ft Activities: Expect Delays, Reduced to Single Lane, Alternating Direction of Travel, Use Caution.SH-21 · Bridge Work on SH-21 At Mores Creek Br. MM 17. 9/11/2026 7:00 AM MT to 5/28/2027 5:00 PM MT Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 12ft Activities: Expect Delays, Reduced to Single Lane, Alternating Direction of Travel, Use Caution. · Temporary traffic signals will control alternating one-way traffic at the Mores Creek Canyon Bridge 24/7.
Oversize loads wider than 12 feet will require advance coordination before traveling through the project. Motorists should expect possible delays through the work zone.
Vehicles wider than 12 feet should use an alternate route. · Width restriction: 12 feet wideRestrictions in force6 min agoBridge Work on SH-46 Both Directions from US-20 to US-20. 6/1/2026 7:00 AM MT to 12/11/2026 6:00 PM MT Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 10ft Speed Restriction: 35mph Activities: Look Out for Flagger, Use Caution. Expect Delays: Under 15 minutesSH-46 · Bridge Work on SH-46 Both Directions from US-20 to US-20. 6/1/2026 7:00 AM MT to 12/11/2026 6:00 PM MT Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 10ft Speed Restriction: 35mph Activities: Look Out for Flagger, Use Caution. Expect Delays: Under 15 minutes · Repairing multiple bridges. Temporary traffic signals in place as road is reduced to one lane . Big Horn Traffic-Cache Carlson 208-420-6687. Cannon Builders-KC McDonald 208-260-8115. ITD-Michael Ramberg 208-720-2098 · Width restriction: 10 feet wide · Speed restriction: 35 mphRestrictions in force6 min agoBridge construction on I-15 Both Directions from MM (88) to MM (92). 5/11/2026 6:00 AM MT to 11/3/2026 4:00 PM MT Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Speed Restriction: 65mph Activities: Mandatory Speed Limit in Force, Use Caution.I-15 · Bridge construction on I-15 Both Directions from MM (88) to MM (92). 5/11/2026 6:00 AM MT to 11/3/2026 4:00 PM MT Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Speed Restriction: 65mph Activities: Mandatory Speed Limit in Force, Use Caution. · Bridge Repair · Speed restriction: 65 mphRestrictions in force6 min agoBridge construction on SH-21 Both Directions near South Fork Payette River. Lanes Alternating. 4/29/2025 7:00 AM to 6/30/2027 8:00 PM Mon, Tue, Wed, Thu, Fri, Sat, Sun: 7:00 AM - 8:00 PM Width Restriction: 13ft Weight Restriction: 80000lbs Speed Restriction: 25mph Activities: expect delays, reduced to single lane, alternating direction of travel. Expect Delays: Under 15 minutesSH-21 · Bridge construction on SH-21 Both Directions near South Fork Payette River. Lanes Alternating. 4/29/2025 7:00 AM to 6/30/2027 8:00 PM Mon, Tue, Wed, Thu, Fri, Sat, Sun: 7:00 AM - 8:00 PM Width Restriction: 13ft Weight Restriction: 80000lbs Speed Restriction: 25mph Activities: expect delays, reduced to single lane, alternating direction of travel. Expect Delays: Under 15 minutes · Work will consist of bridge removal and replacement on SH-21 over the south fork of the Payette River in Lowman, ID. Work will continue through the summer of 2027 and will be reduced to one lane with temporary traffic signals during a majority of the time. Intermittent Flagging operations may take place occasionally as work requires. Work will pause Dec-April each year, with one lane closed to traffic through the winter of 2025-2026. A temporary traffic signal will be in operation during this time.
CONTACTS: Contractor; Knife River; Jordan Warner, 208-914-0289. ITD Contacts: PM; Greer Gardner, 208-617-0726 Inspector; Josh Roper 208-860-6307 · Width restriction: 13 feet wide · Weight restriction: 80000 lb · Speed restriction: 25 mphRestrictions in force6 min agoFlagging operation on US-93 Both Directions from Rock Point Rd to Cherry Hill Ln. 9/21/2026 7:00 AM MT to 10/30/2026 5:00 PM MT Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 12ftUS-93 · Flagging operation on US-93 Both Directions from Rock Point Rd to Cherry Hill Ln. 9/21/2026 7:00 AM MT to 10/30/2026 5:00 PM MT Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 12ft · Width restriction: 12 feet wideRestrictions in force6 min agoGross weight limit on US-12-BL At East Kooskia Bridge. Weight Restriction: 16000lbsUS-12-BL · Gross weight limit on US-12-BL At East Kooskia Bridge. Weight Restriction: 16000lbs · Permanent weight restriction in place on the East Kooskia Bridge, located on US-12 Kooskia Business Loop, MP 0.69. · Weight restriction: 16000 lbRestrictions in force6 min agoHeight restriction on I-15 Northbound from Snake River to W 450 N. Height Restriction: 15ft 4inI-15 · Height restriction on I-15 Northbound from Snake River to W 450 N. Height Restriction: 15ft 4in · Height restriction at Porterville Road overhead structure. · Height restriction: 15.33 feet highRestrictions in force6 min agoLong term road construction on I-15 from MM (77) to MM (80). 12/3/2024 7:13 AM to 6/1/2027 6:00 PM Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 25ft Speed Restriction: 65mph Activities: Mandatory Speed Limit in Force, Use Caution.I-15 · Long term road construction on I-15 from MM (77) to MM (80). 12/3/2024 7:13 AM to 6/1/2027 6:00 PM Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 25ft Speed Restriction: 65mph Activities: Mandatory Speed Limit in Force, Use Caution. · Variable speeds between 65 and 70, watch variable speed message board. Daytime work from 7 am to 5 pm Monday through Friday. Construction vehicles entering and exiting the workzone. Variable speeds between 65 and 70, watch variable speed message board. · Width restriction: 25 feet wide · Speed restriction: 65 mphRestrictions in force6 min agoLong term road construction on I-84 Eastbound from Centennial Way to Franklin Rd. 11/3/2023 12:00 AM MT to 5/27/2027 6:00 PM MT Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 24ft Speed Restriction: 55mph Activities: Use Caution.I-84 · Long term road construction on I-84 Eastbound from Centennial Way to Franklin Rd. 11/3/2023 12:00 AM MT to 5/27/2027 6:00 PM MT Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 24ft Speed Restriction: 55mph Activities: Use Caution. · Wide loads use caution as shoulder widths are reduced to one foot (1') in some areas. I-84 EB and WB are each 24’ wide at their narrowest (barrier to barrier). For additional information, go to: https://itd.idaho.gov/project/i-84-centennial-way-to-franklin-road/ · Width restriction: 24 feet wide · Speed restriction: 55 mphRestrictions in force6 min agoLong term road construction on I-84 Westbound from Franklin IC to Centennial IC. All Lanes Affected. 11/3/2023 12:00 AM MT to 5/27/2027 6:00 PM MT Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 24ft Speed Restriction: 55mph Activities: Use Caution.I-84 · Long term road construction on I-84 Westbound from Franklin IC to Centennial IC. All Lanes Affected. 11/3/2023 12:00 AM MT to 5/27/2027 6:00 PM MT Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 24ft Speed Restriction: 55mph Activities: Use Caution. · Wide loads use caution as shoulder widths are reduced to one foot (1') in some areas. I-84 EB and WB are each 24’ wide at their narrowest (barrier to barrier). For additional information, go to: https://itd.idaho.gov/project/i-84-centennial-way-to-franklin-road/ · Width restriction: 24 feet wide · Speed restriction: 55 mphRestrictions in force6 min agoLong term road construction on SH-16 Both Directions from Boise River to W Floating Feather Rd. All Shoulders Affected. 8/4/2025 9:00 PM to 7/19/2027 5:00 AM Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 11ft Speed Restriction: 45mph Activities: Look Out for Flagger, Use Caution.SH-16 · Long term road construction on SH-16 Both Directions from Boise River to W Floating Feather Rd. All Shoulders Affected. 8/4/2025 9:00 PM to 7/19/2027 5:00 AM Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 11ft Speed Restriction: 45mph Activities: Look Out for Flagger, Use Caution. · (9:00 PM to 5:00 AM 6/1/26 to 6/2/26)
Traffic reduced to single lane on SH-16 with flagger between the SH-44 and Floating Feather intersections overnight (9:00 PM to 5:00 AM).
NB & SB lanes are both reduced to One Lane.
Vehicle Restrictions on both NB and SB lanes 11 FT widths.
Road widening on SH-16 and SH-44 to accommodate interchange construction · Width restriction: 11 feet wide · Speed restriction: 45 mphRestrictions in force6 min agoLong term road construction on SH-16 Northbound from US-20 Westbound to SH-16. Ramp Affected. 3/17/2026 2:53 PM to 11/20/2026 12:00 PM Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 12ft Activities: Look out for flagger.SH-16 · Long term road construction on SH-16 Northbound from US-20 Westbound to SH-16. Ramp Affected. 3/17/2026 2:53 PM to 11/20/2026 12:00 PM Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 12ft Activities: Look out for flagger. · Width restriction: 12 feet wideRestrictions in force6 min agoLong term road construction on SH-16 Southbound from SH-16 to US-20. Ramp Affected. 3/17/2026 2:59 PM to 11/20/2026 2:59 PM Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 12ft Activities: Look out for flagger.SH-16 · Long term road construction on SH-16 Southbound from SH-16 to US-20. Ramp Affected. 3/17/2026 2:59 PM to 11/20/2026 2:59 PM Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 12ft Activities: Look out for flagger. · Width restriction: 12 feet wideRestrictions in force6 min agoLong term road construction on W State St from Moyle to N Palmer Ln. All Shoulders Affected. 8/4/2025 5:13 PM to 6/21/2027 9:00 PM Mon, Tue, Wed, Thu, Fri: Active all day, Sat, Sun: Paused all day Width Restriction: 11ft Speed Restriction: 45mph Activities: Look Out for Flagger, Use Caution.W State St · Long term road construction on W State St from Moyle to N Palmer Ln. All Shoulders Affected. 8/4/2025 5:13 PM to 6/21/2027 9:00 PM Mon, Tue, Wed, Thu, Fri: Active all day, Sat, Sun: Paused all day Width Restriction: 11ft Speed Restriction: 45mph Activities: Look Out for Flagger, Use Caution. · Shoulder closures in effect day and night.
Vehicle Restrictions on both EB and WB lanes 11 FT widths. Road widening on SH-16 and SH-44 to accommodate interchange construction
45 MPH speed reduction on SH-44 between Moyle and Palmer for the duration of the project.
Utility relocation. · Width restriction: 11 feet wide · Speed restriction: 45 mphRestrictions in force6 min agoMajor Length limit on SH-71 Both Directions from MM (13) to MM (1). Length Restriction: 65ftSH-71 · Major Length limit on SH-71 Both Directions from MM (13) to MM (1). Length Restriction: 65ft · Permanent length limit in effect, 48 feet or less semitrailers may not exceed the 65.00 feet overall length limit due to narrow roadway. Permitted vehicle combinations hauling non-reducible loads are not subject to the 65 ft. overall length restriction. · Length restriction: 65 feet longRestrictions in force6 min agoMajor No through traffic on E Iona Rd Both Directions from US-26 to US-26. Activities: Warning.E Iona Rd · Major No through traffic on E Iona Rd Both Directions from US-26 to US-26. Activities: Warning. · No left turns allowed from Iona Rd onto US-26.
No through traffic allowed across US-26.Restrictions in force6 min agoMajor Road construction on I-15 Northbound Near MM (79). 1 Left lane closed. 11/3/2026 8:00 AM MT to 11/6/2026 12:00 AM MT Tue, Wed, Thu, Fri: 8:00 AM - 12:00 AM Speed Restriction: 55mphI-15 · Major Road construction on I-15 Northbound Near MM (79). 1 Left lane closed. 11/3/2026 8:00 AM MT to 11/6/2026 12:00 AM MT Tue, Wed, Thu, Fri: 8:00 AM - 12:00 AM Speed Restriction: 55mph · Northbound Alternating Lane Closures MP 79 to MP 81. These closures will be active 8:00 AM to 12:00 PM each day from Tuesday 11/3/2026 to Friday 11/6/2026.
For additional information, go to: itdprojects.idaho.gov/pages/i15northgatetoblackfoot · Speed restriction: 55 mphRestrictions in force6 min agoMajor Road construction on I-15 Northbound Near Northgate Pkwy. 1 Left lane closed. 10/16/2026 7:00 PM MT to 10/31/2026 8:00 AM MT Mon, Tue, Wed, Thu, Fri, Sat, Sun: 12:00 AM - 7:00 AM, 7:00 PM - 12:00 AM Speed Restriction: 55mphI-15 · Major Road construction on I-15 Northbound Near Northgate Pkwy. 1 Left lane closed. 10/16/2026 7:00 PM MT to 10/31/2026 8:00 AM MT Mon, Tue, Wed, Thu, Fri, Sat, Sun: 12:00 AM - 7:00 AM, 7:00 PM - 12:00 AM Speed Restriction: 55mph · Northbound left lane closure from MP 75 to MP 77 for median barrier construction from 10/16 to 10/31.
For additional information, go to: itdprojects.idaho.gov/pages/i15northgatetoblackfoot · Speed restriction: 55 mphRestrictions in force6 min agoMajor Road construction on I-84 Near MM (209.0). 2/28/2024 6:00 AM MT to 12/23/2026 7:00 PM MT Mon, Tue, Wed, Thu, Fri: 7:00 AM - 7:00 PM, Sat, Sun: Paused all day Speed Restriction: 65mph Activities: Use Caution, Warning.I-84 · Major Road construction on I-84 Near MM (209.0). 2/28/2024 6:00 AM MT to 12/23/2026 7:00 PM MT Mon, Tue, Wed, Thu, Fri: 7:00 AM - 7:00 PM, Sat, Sun: Paused all day Speed Restriction: 65mph Activities: Use Caution, Warning. · Night time work from 6pm-7am AWP- Rich Ata, 385-260-5545, Sundt- Aaron Vigilante, 208-869-3626, Rob Ramsey, 208-421-0891 · Speed restriction: 65 mphRestrictions in force6 min agoMajor Road construction on I-84 Westbound from MM (168) to MM (165). All Lanes Intermittent. 10/27/2024 7:00 PM to 11/16/2026 7:00 PM Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 22ft Speed Restriction: 65mph Activities: Use Caution.I-84 · Major Road construction on I-84 Westbound from MM (168) to MM (165). All Lanes Intermittent. 10/27/2024 7:00 PM to 11/16/2026 7:00 PM Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 22ft Speed Restriction: 65mph Activities: Use Caution. · **Oversized loads use caution, two 11 foot lanes** Major road construction on I-84 Eastbound and Westbound from MP 168 to MP 165. Variable speed limits. Intermittent day & night lane closures with reduced speeds and changing traffic patterns.
Roadwork Ahead- Tanner Clouse, 541-630-3196, Tyler Manship- CPC, 801-410-5666, Zane Reed, 208-850-2619, ITD-Horrocks Engineers- Sam Purser, 208-242-7021 · Width restriction: 22 feet wide · Speed restriction: 65 mphRestrictions in force6 min agoMajor Road construction on I-84 Westbound from MM (173) to MM (168). All Lanes Intermittent. 7/27/2023 7:00 AM to 11/20/2026 7:00 PM Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Speed Restriction: 70mph Activities: Use Caution.I-84 · Major Road construction on I-84 Westbound from MM (173) to MM (168). All Lanes Intermittent. 7/27/2023 7:00 AM to 11/20/2026 7:00 PM Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Speed Restriction: 70mph Activities: Use Caution. · Major road construction on I-84 Eastbound and Westbound from MP 168 to MP 173. Variable speed limits. Intermittent day & night lane closures with reduced speeds and changing traffic patterns.
Roadwork Ahead- Tanner Clouse, 541-630-3196, Tyler Manship- CPC, 801-410-566, Zane Reed, 208-850-2619, ITD-Horrocks Engineers- Sam Purser, 208-242-7021 · Speed restriction: 70 mphRestrictions in force6 min agoMajor Road construction on SH-3 Both Directions from Emerald Creek to MM (52). All Lanes Intermittent. 4/29/2026 6:30 AM PT to 11/13/2026 5:00 PM PT Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 15ft Speed Restriction: 35mph Activities: Expect Delays. Expect Delays: Under 15 minutesSH-3 · Major Road construction on SH-3 Both Directions from Emerald Creek to MM (52). All Lanes Intermittent. 4/29/2026 6:30 AM PT to 11/13/2026 5:00 PM PT Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 15ft Speed Restriction: 35mph Activities: Expect Delays. Expect Delays: Under 15 minutes · 11/2/2026 through 11/7/2029 single lane closure during day time. evening lane open for traffic. · Width restriction: 15 feet wide · Speed restriction: 35 mphRestrictions in force6 min agoMajor Road construction on SH-75 from Elkhorn Rd to River St. 2/11/2026 9:00 AM to 10/30/2026 7:00 PM Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 11ft Speed Restriction: 25mph Activities: Consider Alternative Route, Expect Delays, Look Out for Flagger, Use Caution. Expect Delays: IntermittentSH-75 · Major Road construction on SH-75 from Elkhorn Rd to River St. 2/11/2026 9:00 AM to 10/30/2026 7:00 PM Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 11ft Speed Restriction: 25mph Activities: Consider Alternative Route, Expect Delays, Look Out for Flagger, Use Caution. Expect Delays: Intermittent · Reduced to one lane NB & SB. Current work is utilities and bridge work at Trail Creek Bridge. Sidewalk closure on West side of Trail Creek Bridge, Traffic Control available to help direct pedestrian traffic. Detour in place for SB traffic at River St to Serenade. Changing traffic patterns. Reader board in use Desert Mountain Traffic-Sandy Nyrehn 208-965-4782. ITD- Tom Logan 208-316-0591 · Width restriction: 11 feet wide · Speed restriction: 25 mphRestrictions in force6 min agoMajor Road construction on US-91 Near Kontes Ln. 11/4/2026 8:00 AM MT to 11/18/2026 4:00 PM MT Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 15ftUS-91 · Major Road construction on US-91 Near Kontes Ln. 11/4/2026 8:00 AM MT to 11/18/2026 4:00 PM MT Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 15ft · Lane Closures over the Blackfoot Canal near Knotes Ln on US-91 for bridge deck construction.
For additional information, go to: itdprojects.idaho.gov/pages/i15northgatetoblackfoot · Width restriction: 15 feet wideRestrictions in force6 min agoMinor Road construction on I-90 Both Directions from MM (24) to MM (32). 1 Left lane closed. 10/20/2026 8:43 AM PT to 11/20/2026 12:00 AM PT Mon, Tue, Wed, Thu, Fri: 7:00 AM - 7:00 PM, Sat, Sun: Paused all day Width Restriction: 14ft Speed Restriction: 45mph Activities: Expect Delays. Expect Delays: Under 15 minutesI-90 · Minor Road construction on I-90 Both Directions from MM (24) to MM (32). 1 Left lane closed. 10/20/2026 8:43 AM PT to 11/20/2026 12:00 AM PT Mon, Tue, Wed, Thu, Fri: 7:00 AM - 7:00 PM, Sat, Sun: Paused all day Width Restriction: 14ft Speed Restriction: 45mph Activities: Expect Delays. Expect Delays: Under 15 minutes · 10/27/2026 Passing Lane closure MP 27 to 28 East and West bound close until 11/4/2026 all day reduce speed during active lane closures. · Width restriction: 14 feet wide · Speed restriction: 45 mphRestrictions in force6 min agoMinor Road construction on I-90 Both Directions from Northwest Blvd. to MM (10). 1/5/2026 7:00 AM PT Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 14ftI-90 · Minor Road construction on I-90 Both Directions from Northwest Blvd. to MM (10). 1/5/2026 7:00 AM PT Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 14ft · I90 Construction, expected to last until late 2027. Watch for Variable Speed Limits.
Loads wider than 14' restricted to nighttime movements (10PM-5AM) and need a front and back pilot car. Max width is 26'. · Width restriction: 14 feet wideRestrictions in force6 min agoMinor Road construction on US-93 Northbound from Poison Creek Rd to Poison Creek Rd. 8/31/2026 6:00 PM MT to 12/1/2026 7:20 AM MT Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 12ft Speed Restriction: 45mph Additional Restrictions: No Oversized Loads Activities: Expect Delays. Expect Delays: Under 15 minutesUS-93 · Minor Road construction on US-93 Northbound from Poison Creek Rd to Poison Creek Rd. 8/31/2026 6:00 PM MT to 12/1/2026 7:20 AM MT Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 12ft Speed Restriction: 45mph Additional Restrictions: No Oversized Loads Activities: Expect Delays. Expect Delays: Under 15 minutes · Construction Inspector · Width restriction: 12 feet wide · Speed restriction: 45 mphRestrictions in force6 min agoMinor Road maintenance on SH-55 Both Directions from North Fork Payette River to Banks Lowman Hwy. Lane Alternating. 10/27/2026 7:00 AM MT to 10/30/2026 6:00 PM MT Tue, Wed, Thu, Fri: 7:00 AM - 6:00 PM Speed Restriction: 45mph Activities: Look Out for Flagger.SH-55 · Minor Road maintenance on SH-55 Both Directions from North Fork Payette River to Banks Lowman Hwy. Lane Alternating. 10/27/2026 7:00 AM MT to 10/30/2026 6:00 PM MT Tue, Wed, Thu, Fri: 7:00 AM - 6:00 PM Speed Restriction: 45mph Activities: Look Out for Flagger. · Shoulder closures and Lane Closures in NB and SB Directions. Flaggers will be used to direct traffic when lane closures are established. · Speed restriction: 45 mphRestrictions in force6 min agoNight time construction on I-90 Eastbound from E Seltice Way to Atlas. 1 Left lane closed. 10/29/2026 8:00 PM PT to 10/30/2026 6:00 AM PT Thu: 8:00 PM - 12:00 AM, Fri: 12:00 AM - 6:00 AM Width Restriction: 12ftI-90 · Night time construction on I-90 Eastbound from E Seltice Way to Atlas. 1 Left lane closed. 10/29/2026 8:00 PM PT to 10/30/2026 6:00 AM PT Thu: 8:00 PM - 12:00 AM, Fri: 12:00 AM - 6:00 AM Width Restriction: 12ft · EB traffic will be in a one lane configuration at night as crews work to switch EB traffic to the new Atlas bridge. · Width restriction: 12 feet wideRestrictions in force6 min agoNight time construction on SH-16 Both Directions Near Aerie Way. 10/27/2026 8:00 PM MT to 11/17/2026 5:00 AM MT Mon, Tue, Wed, Thu, Fri, Sat, Sun: 12:00 AM - 5:00 AM, 8:00 PM - 12:00 AM Speed Restriction: 55mph Activities: Consider Alternative Route, Look Out for Flagger, Reduced to Single Lane, Alternating Direction of Travel.SH-16 · Night time construction on SH-16 Both Directions Near Aerie Way. 10/27/2026 8:00 PM MT to 11/17/2026 5:00 AM MT Mon, Tue, Wed, Thu, Fri, Sat, Sun: 12:00 AM - 5:00 AM, 8:00 PM - 12:00 AM Speed Restriction: 55mph Activities: Consider Alternative Route, Look Out for Flagger, Reduced to Single Lane, Alternating Direction of Travel. · SH-16 will be reduced to one lane at night (between 8pm and 5 am). Flaggers will direct traffic. · Speed restriction: 55 mphRestrictions in force6 min agoOversize Transport on US-26 Both Directions near SH-24.US-26 · Oversize Transport on US-26 Both Directions near SH-24. · If using a lowboy trailer, DO NOT cross railroad tracks at SH-75/US-26/US-93 intersection in Shoshone. The tracks are significantly higher than the roadway.Restrictions in force6 min agoPermanent length restriction on SH-21 from Idaho City to Lowman. Length Restriction: 65ftSH-21 · Permanent length restriction on SH-21 from Idaho City to Lowman. Length Restriction: 65ft · Permanent length limit in effect, 48 feet or less semitrailers may not exceed the 65.00 feet overall length limit due to narrow roadway. . Permitted vehicle combinations hauling non-reducible loads are not subject to the 65 ft overall length restriction. · Length restriction: 65 feet longRestrictions in force6 min agoRoad construction on I-15 Both Directions from Inkom to Portneuf River. 3/2/2026 7:00 PM MT to 11/7/2026 7:00 PM MT Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 12ftI-15 · Road construction on I-15 Both Directions from Inkom to Portneuf River. 3/2/2026 7:00 PM MT to 11/7/2026 7:00 PM MT Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 12ft · Long term roadwork and bridge work on I-15 Northbound near Inkom. Northbound traffic is crossed over to I-15 Southbound. One lane of traffic is open in each direction. Width restriction of 12 feet in both directions. Speed limit is 65 MPH. · Width restriction: 12 feet wideRestrictions in force6 min agoRoad construction on I-15 from MM (72) to MM (78). 9/17/2024 7:44 AM Mon, Tue, Wed, Thu, Fri: 7:30 AM - 5:30 PM, Sat, Sun: Paused all day Width Restriction: 25ft Speed Restriction: 65mph Activities: Mandatory Speed Limit in Force, Use Caution.I-15 · Road construction on I-15 from MM (72) to MM (78). 9/17/2024 7:44 AM Mon, Tue, Wed, Thu, Fri: 7:30 AM - 5:30 PM, Sat, Sun: Paused all day Width Restriction: 25ft Speed Restriction: 65mph Activities: Mandatory Speed Limit in Force, Use Caution. · Variable speeds between 65 and 70, watch variable speed message board. Daytime work from 7:30 am to 5:30 pm Monday through Friday Temp barrier has been placed on the SB outside shoulder. Construction vehicles entering and exiting the workzone, no lane closures anticipated. Occasional rolling slowdowns. No work on NB at this time. Variable speeds between 65 and 70, watch variable speed message board. · Width restriction: 25 feet wide · Speed restriction: 65 mphRestrictions in force6 min agoRoad construction on I-84 Both Directions from MM (168) to MM (173). All Lanes Intermittent. 6/12/2024 8:52 AM to 11/20/2026 7:00 PM Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Speed Restriction: 70mph Activities: Expect Delays, Use Caution.I-84 · Road construction on I-84 Both Directions from MM (168) to MM (173). All Lanes Intermittent. 6/12/2024 8:52 AM to 11/20/2026 7:00 PM Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Speed Restriction: 70mph Activities: Expect Delays, Use Caution. · Major road construction on I-84 Eastbound and Westbound from MP 168 to MP 173. Variable speed limits. Intermittent day & night lane closures with reduced speeds and changing traffic patterns.
Roadwork Ahead- Tanner Clouse, 541-630-3196, Tyler Manship- CPC, 801-410-566, Zane Reed, 208-850-2619, ITD-Horrocks Engineers- Sam Purser, 208-242-7021 · Speed restriction: 70 mphRestrictions in force6 min agoRoad construction on I-84 Eastbound Near N Overland Ave. Lanes Alternating. 11/12/2025 7:00 AM MT to 11/16/2026 9:00 PM MT Mon, Tue, Wed, Thu, Fri: 7:00 AM - 7:00 PM, Sat, Sun: Paused all day Width Restriction: 16ft Speed Restriction: 65mphI-84 · Road construction on I-84 Eastbound Near N Overland Ave. Lanes Alternating. 11/12/2025 7:00 AM MT to 11/16/2026 9:00 PM MT Mon, Tue, Wed, Thu, Fri: 7:00 AM - 7:00 PM, Sat, Sun: Paused all day Width Restriction: 16ft Speed Restriction: 65mph · AWP- Rich Ata, 385-260-5545, Sundt- Aaron Vigilante, 208-869-3626, Rob Ramsey, 208-421-0891 · Width restriction: 16 feet wide · Speed restriction: 65 mphRestrictions in force6 min agoRoad construction on I-84 Eastbound from MM (165) to MM (168). All Lanes Intermittent. 7/27/2023 7:00 AM to 11/20/2026 7:00 PM Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 22ft Speed Restriction: 65mph Activities: Use Caution.I-84 · Road construction on I-84 Eastbound from MM (165) to MM (168). All Lanes Intermittent. 7/27/2023 7:00 AM to 11/20/2026 7:00 PM Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 22ft Speed Restriction: 65mph Activities: Use Caution. · **Oversized loads use caution, Major road construction on I-84 Eastbound and Westbound from MP 168 to MP 165. Variable speed limits.
Intermittent day & night lane closures with reduced speeds and changing traffic patterns.
Roadwork Ahead- Tanner Clouse, 541-630-3196, Tyler Manship- CPC, 801-410-566, Zane Reed, 208-850-2619, ITD-Horrocks Engineers- Sam Purser, 208-242-7021 · Width restriction: 22 feet wide · Speed restriction: 65 mphRestrictions in force6 min agoRoad construction on I-84 Westbound Near I-84-BL Westbound. Lanes Alternating. 11/12/2025 7:00 AM MT to 11/16/2026 9:00 PM MT Mon, Tue, Wed, Thu, Fri: 8:00 AM - 5:00 PM, Sat, Sun: Paused all day Width Restriction: 14ft Speed Restriction: 65mphI-84 · Road construction on I-84 Westbound Near I-84-BL Westbound. Lanes Alternating. 11/12/2025 7:00 AM MT to 11/16/2026 9:00 PM MT Mon, Tue, Wed, Thu, Fri: 8:00 AM - 5:00 PM, Sat, Sun: Paused all day Width Restriction: 14ft Speed Restriction: 65mph · AWP- Rich Ata, 385-260-5545, Sundt- Aaron Vigilante, 208-869-3626, ITD- Rob Ramsey, 208-421-0891, Chris Severson, 208-312-3289 · Width restriction: 14 feet wide · Speed restriction: 65 mphRestrictions in force6 min ago
Showing the 40 highest-consequence distinct records out of 250. Use the official report for the full statewide list.
Idaho chain-law reference
Idaho designates chain-up requirements on specific commercial routes and passes; passenger guidance is published by ITD.
Read the cited law or official guidance.
Passes and winter segments
I-90
Fourth of July Pass
3,081 ft
ID-75
Galena Summit
8,701 ft
US-12
Lolo Pass
5,233 ft
I-90
Lookout Pass
4,725 ft
US-93
Lost Trail Pass
7,014 ft
I-15
Monida Pass
6,824 ft
US-20
Targhee Pass
7,072 ft
US-95
White Bird Grade
4,290 ft
US-93
Willow Creek Summit
7,160 ft