The Dubuque Police Department responded to the 16th Street entrance ramp to Highway 151/61 for the report of a motorcycle accident.
Officers arrived on scene and observed a 2004 Kawasaki motorcycle on its side.

The driver of the motorcycle was identified as Shannon Christopher Katka (40) of Dubuque. The passenger of the motorcycle was identified as Shelly Lynn Brenke (43) also of Dubuque.

Katka was traveling north on the entrance ramp when he lost control causing him and Brenke to be ejected from the motorcycle.   Katka was transported to Unity Point Finley Hospital for medical treatment by the Dubuque Fire Department. Brenke was pronounced dead at the scene.

The Iowa State Patrol responded to conduct a technical accident investigation of the scene. The Dubuque Police Department is handling the follow-up investigation.

If you have any information on this incident or others, please call the Dubuque Police Department at 563-589-4415 or Crime Stoppers at 800-747-0117 or 563-588-0714 (if the information leads to an arrest, the caller is eligible for a cash reward of up to $2,000). You can also submit tips anonymously online at www.cityofdubuque.org/police or through the MyDBQ smartphone app available at www.cityofdubuque.org/MyDBQ.