Partial reopening of Illinois 185: Sinkhole repairs allow single-lane traffic almost 3 months later

Hillsboro, IL – Illinois 185 has partially reopened to traffic nearly three months after it was closed by a massive sinkhole. The Illinois Department of Transportation (IDOT) announced that one lane is now reopened and traffic is being controlled by temporary traffic lights.

According to IDOT, the sinkhole southeast of Hillsboro first appeared on April 15, prompting an immediate closure of the road between Hillsboro and Coffeen. The sinkhole increased significantly in diameter, making the area unsafe for travel and requiring a thorough geotechnical evaluation.

Temporary repairs have now safely reopened one lane to traffic. Motorists are advised to use caution when traveling through the area and expect delays due to temporary traffic signals in place to control traffic flow. IDOT continues to monitor the area and advises drivers to use alternate routes if possible.

IDOT has stated that repairs are still ongoing and additional work is needed to ensure the long-term stability of the roadway. The agency thanks the public for their patience and cooperation during this time and will provide updates as the situation develops.

The reopening of one lane represents a significant step toward restoring normal traffic conditions on Illinois 185.