Public comments on the Idaho Transportation Investment Program (ITIP), are being sought now through July 31.
The ITIP has recently been modified following changes in transportation funding levels.
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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July 29, 2026
Nighttime closure on westbound I-84 will take place Thursday between Ten Mile and Garrity
ITD continues work on SH-16 and I-84 interchange.
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July 28, 2026
Traffic shifts and nighttime closures at US-20 exits between Idaho Falls and Rigby begin this week
Roads beneath interchange bridges will remain open, with traffic moved to one side and speeds reduced. Ramps will close one at a time, with neighboring exits open for detouring.
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July 28, 2026
SH-21 reopens between Grandjean and Banner Summit following mudslide
SH-21 is open following mudslide.
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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September 7, 2026 12:00 AM– 11:59 PM MST
Labor Day