Semi driver dead after rear-end crash on I-43 near Big Bend; northbound lanes closed

Updated at 9:40 a.m. on May 21, 2026:

WAUKESHA COUNTY, Wis. (CBS 58) -- One semi-truck driver is dead and another was hospitalized after a crash on I-43 northbound just south of Highway 164 in the Village of Big Bend early Thursday, May 21, according to the Waukesha County Sheriff's Office.

The crash was reported around 6:06 a.m.

A preliminary investigation indicates one semi rear-ended the other. The driver who was struck was taken to a hospital with non-life-threatening injuries.

Northbound I-43 remained closed for an extended period for investigation and cleanup. Drivers were advised to seek alternate routes.

Published at 8:23 a.m. on May 21, 2026:

WAUKESHA COUNTY, Wis. (CBS 58) -- We have been tracking a major crash in Waukesha County that has had I-43 northbound closed early Thursday, May 21. Northbound lanes have been impacted on I-43 from WIS 83 tot WIS 164.

CBS 58 will have more details as they become available.