ITD moving northbound I-15 traffic to new lanes between Northgate and Fort Hall

POCATELLO, Idaho (KIFI) — Drivers on I-15 will notice a major traffic shift this week as the Idaho Transportation Department enters the next phase of its ongoing interstate expansion project. Starting tonight, May 18th, crews will begin moving northbound traffic into new lanes between the Northgate (Exit 73) and Fort Hall (Exit 80) interchanges.

Once the shift is done, Northbound drivers will have three open lanes of travel instead of being squeezed down to one. However, motorists should prepare for temporary ramp closures and minor delays:

• The northbound on-ramp at the Northgate Interchange (Exit 73) will close between 7 p.m. on Saturday, May 16, and 2 p.m. on Sunday, May 17. 
• This same on-ramp will close again between 7 p.m. on Monday, May 18 and 6 a.m. on Tuesday, May 19.
• Intermittent traffic shifts and northbound on-ramp closures will be taking place at the Fort Hall Interchange (Exit 80) on Monday, May 18. Exit 80 ramp closures are expected to last up to 30 minutes at a time.

The work is part of a massive, multi-year effort to improve safety and increase driver capacity along I-15. ITD anticipates the construction will wrap up in 2027, ultimately expanding I-15 to three lanes in each direction between Northgate and Fort Hall.

For project updates, click HERE.