The Dodge County Sheriff's Office is investigating a fatal crash that happened on I-41 at Highway 49 just after 2:00 a.m. on Wednesday, August 19.  

Investigators say a semi hauling water in a tank trailer was struck by another semi while it was completing a u-turn across the median.  The driver of the tank trailer was uninjured, but the driver of the second semi was pronounced dead at the scene.

Traffic on southbound I-41 was impacted for several hours while the crash was investigated.

The identity of the deceased is being withheld until next of kin have been notified.