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 3, 2026
Applications now open for Idaho traffic safety grants
The Office of Highway Safety is accepting grant applications for Fiscal Year 2027.
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February 2, 2026
Crack sealing planned for US-95 near top of Lewiston Hill for next two weeks
Repairs are expected to take two weeks subject to weather.
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February 2, 2026
Nighttime closures on Ustick Road near McDermott Bypass part of major milestone work on SH-16
ITD will close Ustick at night 4 and 5 Feb.
Upcoming Events
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February 16, 2026 – MST
Presidents’ Day
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February 19, 2026 – MST
Transportation Board Meeting – Feb. 2026
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March 7, 2026 8:00 AM– 4:30 PM MST
2026 Aviation Safety Stand Down