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 19, 2026
ITD invites the community to provide input for US-95 Palouse Region Study both in person and on-line
An online public meeting for the US-95 Palouse Region Study begins today, March 19. You're invited to attend in person on Thursday, March 26, in Moscow.
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March 18, 2026
Extended closure planned on Old Highway 91 in Inkom for roadway and bridge construction
Old Highway 91 under the Interstate 15 bridges in Inkom will close from March 19 through July 24.
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March 17, 2026
Weekend closures on I-84 between Garrity and Ten Mile rescheduled
Weekend closures rescheduled due to high winds.
Upcoming Events
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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
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April 1, 2026 2:00 PM– 3:00 PM MST
Donate Life Event