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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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September 29, 2026
Nighttime Lane Closures at Garrity Interchange in Nampa begin Friday
Nighttime Lane Closures begin on the I-84, Garrity Interchange
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September 29, 2026
Closures on Indiana Avenue at SH-55 Friday
ITD will close the intersection of SH-55 and Indiana Avenue for utility work.
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September 29, 2026
Free winter driving classes return to North Idaho ahead of snow season
Over 10 classes are scheduled across North Idaho with more dates and locations coming soon! Seats tend to fill up quickly, so register to reserve your spot early!
Upcoming Events
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October 12, 2026 12:00 AM–11:59 PM MST
Columbus Day
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October 14, 2026 8:30 AM–3:00 PM MST
Transportation Board Meeting – Oct. 2026
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October 29, 2026 1:30 PM–3:00 PM MST
Dealer Advisory Board Meeting