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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 23, 2026
SH-53 Pleasant View Interchange to fully open Friday
After nearly 2 years of construction, the new SH-53 Pleasant View Interchange is set to open to traffic Friday.
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September 23, 2026
Delays expected Tuesday night on SH-16
ITD is permitting an overnight lane reduction on SH-16 Tuesday as Valnova crews set girders for a future overpass.
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September 23, 2026
Idaho marks Child Passenger Safety Month with free seat check events
Idaho is joining the nationwide observance of Child Passenger Safety Month, reminding families that choosing the right car seat isn’t about a child’s age; it’s about their weight and height.
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