Popular Services & Guides
Join our team!
Working at ITD can be a lifetime career choice with the opportunity for growth and advancement.
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 Construction
SH-16 will improve regional mobility, provide access to I-84 in the rapidly growing central Treasure Valley, and improve commutes for thousands of motorists.
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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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March 16, 2026
Make a plan for a sober ride before St. Patrick’s Day festivities begin
St. Patrick’s Day celebrations will take place across the country on and around March 17. Drinking and driving is deadly and never an option. Make a plan for a sober ride.
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March 16, 2026
ITD to close Locust Lane for culvert installation starting Thursday
ITD begins irrigation work at Locust Lane and SH-45.
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March 16, 2026
Nighttime closures on Karcher Road March 18 and 19
ITD enters next phase of Karcher Interchange construction.
Upcoming Events
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March 18, 2026 8:00 AM– 5:00 PM MST
Transportation Board Meeting – March 2026
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March 25, 2026 7:00 AM– 4:00 PM MST
Operation Clean Sweep
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March 26, 2026 4:00 PM– 7:00 PM MST
US-95 Palouse Region Study Public Meeting