Slow down for Work Zones
Learn more about driving safely in road construction & maintenance work. Stay alert & be careful throughout a work zone.
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 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 Widening: SH-41 to US-95
The first project from the I-90 Corridor Study aims to improve safety and traffic volume capacity.
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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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June 23, 2026
Nighttime closure of Interstate 84 in Heyburn for interchange construction
Nighttime closures on I-84 at Heyburn Exit 211 will begin on Wednesday, June 24.
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June 22, 2026
I-84 Centennial Way eastbound on-ramp to close for 60 days
ITD shifts ramp closures near Centennial Way.
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June 22, 2026
ITD developing plans for US-30, SH-50 and Hansen Bridge in Magic Valley
The Idaho Transportation Department is identifying safety and mobility improvements to State Highway 50 and U.S. Highway 30 between Twin Falls and Interstate 84.
Upcoming Events
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June 24, 2026 8:00 AM –
June 26, 2026 5:00 PM MST
ACE Academy 2026
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July 3, 2026 12:00 AM– 11:59 PM MST
Independence Day (Observed)
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July 7, 2026 1:30 PM– 3:00 PM MST
Dealer Advisory Board Meeting