“Name a Snowplow” entries due by Oct. 31
Teachers of Idaho students (grades 6-12) can submit snowplow names.
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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October 29, 2026
Halloween brings spooky road risks; drivers urged to slow down and stay alert
Distracted driving increases significantly during peak trick-or-treat hours. Drivers are urged to put phones away, slow down, and stay alert.
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October 27, 2026
Westbound I-84 traffic to shift to new lanes following overnight ramp closures Oct. 31
ITD finishes final I-84 and Centennial Way improvements.
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October 23, 2026
I-86 rest areas near American Falls to close next week for maintenance
I-86 rest areas will be closed for maintenance next week.
Upcoming Events
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November 2, 2026 5:30 PM–7:00 PM MST
South Central: 2026 Winter Driving Class – Nov 2
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November 11, 2026 All Day
Veterans Day
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November 19, 2026 8:30 AM–3:30 PM MST
Transportation Board Meeting – Nov. 2026