EAU CLAIRE — A U.S. 53 exit ramp tunnel in Eau Claire will be closed starting next week so higher-efficiency lighting can be installed inside of it.

The tunnel for southbound traffic exiting onto Highway 93 will be closed starting Monday, Sept. 27, and is expected to reopen on Oct. 15, according to a Wisconsin Department of Transportation news release.

The nearly 400-foot-long tunnel's existing high-pressure sodium lights will be replaced with a more energy-efficient LED lighting system. This $186,600 project is part of an initiative to change all state-maintained roadway lighting to LEDs.

During the closure, traffic will be detoured southbound on U.S. 53, then exit onto westbound Interstate 94 and finally get off at the Highway 93 exit.

In addition to the official detour, Eau Claire residents looking to reach Highway 93 could also use South Hastings Way (Business 53) and other local streets to get to that southern part of the city.