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 sque…