Construction near New Plymouth will provide safety improvements at ID-72/US-30 intersection

The Idaho Transportation Department will enhance safety at the intersection of Idaho Highway 72 and US-30 during late September and October.

Crews will reconfigure the intersection to a more common, “t-type” intersection. This will eliminate the free-running movement on ID-72.

During construction, US-30 will be reduced to one lane with temporary traffic signals in place to control traffic.  Delays of up to 15 minutes are possible.  During the same timeframe, ID-72 will be closed to thru traffic.

ID-72 traffic will be detoured one mile south to SE 2nd Avenue. Truck traffic will be detoured to US-30, Interstate 84, and Sand Hollow Road. Detours will be clearly posted and also available at

Crews will work daytime hours Monday through Saturday. The project will be complete in late October.

Langley Gulch Culvert Replacement

During the same timeframe, ITD will replace an aging culvert near Langley Gulch on ID-72 near the intersection work and within the existing work zone.

For more information on this project, as well as a full construction list for southwest Idaho, please visit