Slow down for Work Zones
Learn more about driving safely in road construction & maintenance work. Stay alert & be careful throughout a work zone.
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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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April 23, 2026
Repairs planned for Main Street in Grangeville on Monday
Lane restrictions are coming to Grangeville’s Main Street as crews begin surface repairs to improve driving conditions and extend pavement life.
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April 22, 2026
Work begins Monday on US-20 Buffalo River Bridge in Island Park
Traffic will proceed one lane in each direction as crews work to improve the connections of US-20 and Buffalo River Bridge. Construction is expected to be complete before Memorial Day.
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April 20, 2026
ITD Director Scott Stokes announces retirement
Under his leadership, the department experienced significant increases in transportation funding and earned a reputation for innovative project delivery.
Upcoming Events
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May 7, 2026 8:00 AM– 9:00 AM MST
Transportation Board Adjustments Subcommittee – May 2026
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May 13, 2026 8:00 AM –
May 14, 2026 5:00 PM MST
Transportation Board Meeting – May 2026
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May 13, 2026 8:30 AM– 12:00 PM MST
Trucking Advisory Council Meeting