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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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August 20, 2026
Repaving at Garrity Interchange in Nampa begins Friday night
ITD will be closing I-84 Garrity Interchange in Nampa for repaving Aug. 21-Aug. 24.
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August 20, 2026
Idaho DMV expands eligibility window for military CDL waivers
The Idaho DMV is extending its Military Skills Test Waiver to two years after separation, helping qualified Veterans use their military driving experience toward a CDL.
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August 20, 2026
Idaho steps up impaired-driving enforcement ahead of Labor Day
The Office of Highway Safety will join law enforcement statewide for a Labor Day impaired‑driving mobilization from Aug. 19 to Sept.7, part of the national Drive Sober or Get Pulled Over campaign.
Upcoming Events
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August 20, 2026 5:30 PM–7:00 PM MST
Availability Study Online Public Meeting
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August 27, 2026 4:30 PM–6:30 PM MST
Banks Lowman Intersection Improvement Project Public Meeting
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September 1, 2026 5:00 PM–7:00 PM MST
Banks Lowman Intersection Improvement Project Public Meeting