U.S. Highway 20 between Fairfield and Timmerman Junction will be closed this week as construction crews pave new bridges.

The Idaho Transportation Department (ITD) announced the closure will happen Wednesday and Thursday, October 16 to 17, between mileposts 164 and 173 near Fairfield while crews pave the new Willow Creek and Rock Creek Bridges.

ITD started working on the bridges in April, replacing old worn out culverts with bridges intended to have a longer life span.

According to ITD, the bridges return the streams to a more natural condition. The closures will begin at 11 a.m. and last about three hours.

“We are making every effort to minimize impacts to motorists in the region,” said ITD south-central Idaho Project Manager Brock Dillé. “With the unexpected drop in temperatures this past month, we have a very narrow window to complete work on these structures. Briefly closing the highway will allow us to work more efficiently, and hopefully, prevent us from having to return to the area next year to complete the project.”

Signs and barricades will be in place to warn drivers of the closures with help of flaggers.