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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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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.
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I-84 South Jerome Interchange
Crews are working to replace the South Jerome Interchange. The interchange was originally built in 1966, and the new interchange will be a Divided Diamond/Couplet design.
Recent News
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August 18, 2026
Overnight paving on Kimberly Road begins Aug. 24
The Idaho Transportation Department will begin overnight paving on Kimberly Road Monday, Aug. 24.
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August 17, 2026
Repaving at Ten Mile Interchange in Meridian begins tonight
ITD will close the on-ramps on I-84 at the Ten Mile Interchange tonight to continue the I-84 ramp project.
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August 17, 2026
Nighttime closure on eastbound I-84 will take place tonight between Garrity and Ten Mile exits
ITD is closing eastbound I-84 between Garrity and Ten Mile to pour concrete for the SH-16 flyover ramps.
Upcoming Events
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August 19, 2026 8:00 AM –
August 20, 2026 5:00 PM MST
Transportation Board Meeting – Aug. 2026
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August 19, 2026 8:30 AM–12:00 PM MST
Trucking Advisory Council
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August 20, 2026 5:30 PM–7:00 PM MST
Availability Study Online Public Meeting