Welcome to the new and improved ITD website
Popular Services & Guides
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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January 9, 2026
I-84 closes next weekend between Garrity and Ten Mile
ITD passes major milestone, installs SH-16 flyover girders.
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January 8, 2026
Welcome to the new ITD website
The new site is accessible, mobile-friendly, and modern.
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January 7, 2026
Blue Lakes Boulevard and Pole Line Road Project
The Idaho Transportation Department (ITD) has begun a project to evaluate the Blue Lakes Boulevard and Pole Line Road intersection and surrounding roadway system.
Upcoming Events
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January 19, 2026 – MST
Martin Luther King Jr. / Idaho Human Rights Day
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January 21, 2026 – MST
Transportation Board Meeting – Jan. 2026
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February 19, 2026 – MST
Transportation Board Meeting – Feb. 2026