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 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.
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February 11, 2026
SH-24 to temporarily close this weekend for interchange construction
State Highway 24 will be closed under Interstate 84 at Exit 211 from 6 p.m. on Wednesday, Feb. 13, through 7 a.m. on Monday, Feb. 16. The closure will allow crews to remove the old I-84 westbound brid
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