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Prepare for driving in snow & ice conditions by attending a winter driving safety course in your area.
Popular Services & Guides
How we're improving Idaho
Our projects touch every corner of the state and boost quality of life for communities, travelers & visitors.
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I-90 Widening: SH-41 to US-95
The first project from the I-90 Corridor Study aims to improve safety and traffic volume capacity.
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I-15 Inkom Corridor
ITD is rebuilding I-15 structures at three locations in and near Inkom.
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US-20 Idaho Falls to Arco
Improvements are being planned for US-20 west of Idaho Falls to Arco. This important route leads to the Idaho National Laboratory, where more than 6,000 Idahoans are employed.
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I-84 South Jerome Interchange
Crews are working to replace the South Jerome Interchange. The interchange was originally built in 1966, and the new interchange will be a Divided Diamond/Couplet design.
Recent News
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November 13, 2026
Northbound I-15 lane and ramp closures planned Sunday night
I-15 north of Pocatello to see single-lane and ramp closures.
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November 13, 2026
Idahoans invited to honor victims of traffic crashes on World Day of Remembrance
World Day of Remembrance serves as a solemn reminder that every traffic fatality represents a person whose life mattered and whose loss is deeply felt by loved ones.
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November 9, 2026
New I-84 lanes to open near the Twin Falls Interchange after traffic shift this weekend
The Idaho Transportation Department plans to open new lanes on Interstate 84 after shifting traffic near the Twin Falls Interchange (Exit 173) on Friday and Saturday nights (Nov. 13-14).
Upcoming Events
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November 17, 2026 1:00 PM–3:00 PM MST
Interagency Working Group Meeting
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November 17, 2026 3:00 PM–3:30 PM MST
Transportation Board Policies Subcommittee – Nov. 2026
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November 19, 2026 8:30 AM–3:30 PM MST
Transportation Board Meeting – Nov. 2026