Earlier this week the Idaho Transportation Department resumed work on Interstate 15 in Inkom as part of a multi-year effort that began last year to replace the I-15 bridges over Main Street, Rapid Creek Road and the Union Pacific Railroad.
Last year the three southbound bridges were replaced. This year crews will focus on the northbound bridges, with all work to be completed in late October 2026.
Beginning Monday, I-15 traffic will be crossed over to one lane in each direction on the southbound lanes.
The following closures will be in effect in the coming weeks:
- March 8–12: West Inkom Interchange (Exit 58) northbound on-ramp will close nightly from 9 p.m. to 6 a.m. Traffic will be detoured to Portneuf Area Exit (Exit 63) via Old Highway 91.
- March 13–16: Main Street and North Rapid Creek Road under I-15 will close nightly from 9 p.m. to 6 a.m. Traffic will be detoured via Old Highway 91 and North Inkom Road.
Motorists should watch for workers, use caution, and drive safely through the work zone.
Learn more about the project or sign up for construction updates at itd.idaho.gov/project/inkom-corridor/. Motorists can also check 511.idaho.gov for current conditions.