It's time for the “Name a Snowplow” contest
Idaho students (grades 6-12) have until Oct. 31 to submit plow 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 15, 2026
Idaho recognizes National Teen Driver Safety Week, Oct. 18–24
The Idaho Transportation Department’s Office of Highway Safety is joining communities statewide to recognize National Teen Driver Safety Week, October 18–24, 2026.
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October 15, 2026
I-90 paving begins tomorrow in CDA with delays expected over the weekend and into next week
Lots of significant traffic changes are ahead for drivers on I-90 as work to expand the interstate continues through fall.
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October 15, 2026
Construction to widen SH-44 in Star begins in this month
ITD begin process to widen SH-44 through Star.
Upcoming Events
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October 29, 2026 1:30 PM–3:00 PM MST
Dealer Advisory Board Meeting
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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