BLACKFOOT, Idaho (KIFI) — The Idaho Transportation Department is moving forward with plans to widen Interstate 15 between Blackfoot and Fort Hall. Next week, the department will host a round of open houses to showcase the final design to improve the corridor. The project covers the stretch between the South Blackfoot Interchange (Exit 89) and the US-26/Blackfoot Interchange (Exit 93). According to ITD, the stretch of roadway no longer meets the …