Popular Services & Guides
Welcome to the new and improved ITD website
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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SH-16 from SH-44 to SH-52
ITD is conducting an environmental reevaluation to gather updated traffic numbers and study potential impacts that improvements would have to the area.
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I-90, US-95 Interchange
The I-90 and US-95 Interchange is the first interchange to advance from the I-90 Corridor Study, with a design focused on expanding capacity, improving safety, and accommodating future traffic growth.
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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.
Recent News
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February 13, 2026
ITD presents on data, A.I. at meeting in D.C.
ITD staff participated in the Transportation Research Board meeting in D.C. where thousands of transportation professionals gathered to share research and explore new transportation innovations.
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February 13, 2026
ITD Transforms Roadmapping
By standardizing every IT roadmap in one platform, ITD has reduced duplication, improved resource planning, and strengthened transparency across teams.
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February 12, 2026
Long-term detour for SH-54 through Farragut State Park begins next week.
Residents and travelers to Bayview will use a slightly different route until July as crews work to improve the intersection and build a pedestrian underpass at Brig Road in Farragut State Park.
Upcoming Events
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February 16, 2026 – MST
Presidents’ Day
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February 18, 2026 8:30 AM– 12:00 PM MST
Trucking Advisory Council
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February 19, 2026 – MST
Transportation Board Meeting – Feb. 2026