Dubuque County, Iowa — Motorists should prepare for a full road closure on Olde Castle Road beginning today, Tuesday, May 26, 2026, at 7:00 AM.

Project Details

•  Road: Olde Castle Rd

•  Section Affected: From Olde Worthington Rd to Hwy 136 (approximately 1.67 miles)

•  Work: Culvert replacement

•  Location: Just west of 31121 Olde Castle Rd

•  Status: Road closed for the length of the work zone

The county will completely close the road at the culvert repair site to allow for safe construction activities. The project is expected to take approximately one day, weather permitting.

Impact on Travelers

Drivers who regularly use Olde Castle Road between Olde Worthington Road and Highway 136 will need to seek alternate routes during the closure. The work zone is relatively short but affects the full 1.67-mile stretch listed in the notification.

Recommended Action:

Plan ahead and use detours via nearby county roads or Highway 136. Avoid the area if possible until the road reopens.

Expected Timeline

•  Start: Tuesday, May 26, 2026 – 7:00 AM

•  Estimated Completion: End of day Tuesday, May 26, 2026 (weather dependent)

Dubuque County officials advise residents and commuters to stay updated through official county channels, as heavy rain or other weather issues could extend the closure.

This short-term closure is part of routine infrastructure maintenance to ensure the long-term safety and reliability of county roads. Drivers are encouraged to slow down and proceed with caution in nearby areas during construction.

Stay safe and drive smart.