JOLIET, Illinois – A stretch of Theodore Street was shut down for several hours on Monday, June 24, 2025, after intense heat caused the pavement to buckle, creating hazardous driving conditions. The affected section, located between Dearborn Street and Nicholson Street, was closed by the Joliet Police Department as crews responded to the damage.
The incident occurred during a period of prolonged heat that has gripped Illinois since Friday, with temperatures hovering around 94°F (34°C) and heat indices reaching even higher levels. According to the Illinois Department of Transportation, this kind of extreme warmth can lead to pavement blowouts, where road materials expand beyond their design limits, forcing the surface to buckle or crack.
Despite the severity of the incident, officials have described the damage on Theodore Street as an isolated event. However, similar cases have been reported elsewhere in the state during extended heatwaves. Road closures due to thermal expansion are more common during late June and July, particularly when high temperatures persist over several days without relief.
The Joliet Police Department released a photo of the affected road, which showed a significant buckle disrupting the driving lane. Repairs began shortly after the closure and traffic was rerouted while crews assessed the structural integrity of the surrounding pavement.
As of Tuesday morning, June 25, the road remains under inspection, with city officials monitoring other high-traffic routes for signs of similar stress caused by the ongoing heat.
