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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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August 28, 2026
Drainage work on US-95 White Bird Grade to begin Monday
ITD will place traffic control on US-95 on the White Bird Grade for a month starting Monday to improve drainage along the highway.
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August 28, 2026
Rocky Point project protects motorists and wildlife
ITD's new wildlife crossings at Rocky Point nearing completion.
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August 27, 2026
Traffic changes planned for Lincoln Avenue in Jerome next week
The Idaho Transportation Department will shift southbound Lincoln Avenue traffic onto the new bridge on the west side of the I-84 South Jerome Interchange Monday evening.
Upcoming Events
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September 1, 2026 5:00 PM–7:00 PM MST
Banks Lowman Intersection Improvement Project Public Meeting
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September 3, 2026 1:30 PM–5:30 PM MST
Public Transportation Advisory Council Fall Meeting
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September 7, 2026 12:00 AM–11:59 PM MST
Labor Day