The Idaho Transportation Department plans to shift traffic near Exit 173 at the Twin Falls Interchange on Friday and Saturday nights, Nov. 13-14, as new Interstate 84 lanes open.
Eastbound traffic is scheduled to move between 8 p.m. Friday and 6 a.m. Saturday. Westbound traffic will shift during the same overnight hours Saturday into Sunday.
After the work, I-84 will have three lanes in each direction west of the interchange and two lanes in each direction east of it.
The westbound loop on-ramp at the interchange will close from 8 p.m. Saturday to 6 a.m. Sunday. Drivers can use the other westbound on-ramp during the closure.
The work depends on weather and could be delayed. Intermittent lane closures are expected to continue through late November.
Construction began in 2023 as part of a project to widen I-84 and improve safety and capacity. The department advises motorists to leave early, follow posted signs and remain alert in the work zone.
Travelers can check route information at 511.idaho.gov. Construction updates are available through the Idaho Transportation Department project page, by calling (208) 391-3735 or by emailing info@jerometotwin.org.