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Williamson Today
By the People, for the People
Overnight Closure of I-57 in Williamson and Franklin Counties
IDOT announces bridge improvement project requiring interstate shutdown
Apr. 1, 2026 at 7:50pm
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The Illinois Department of Transportation has announced an overnight closure of Interstate 57 in Williamson and Franklin counties starting at 7 p.m. on Monday, April 13. The closure is necessary to safely install structural beams for the bridge carrying Stiritz Road over I-57 near Johnston City. A marked detour will be in place, and all lanes are expected to reopen by 7 a.m. on Tuesday, April 14.
Why it matters
This closure will impact traffic flow and commute times for residents and travelers in the region, requiring motorists to plan ahead and use alternate routes. The bridge improvement project is part of the state's larger Rebuild Illinois infrastructure initiative.
The details
The closure will take place between exit 65 (West Frankfort) and exit 59 (Johnston City). Northbound and southbound traffic will be detoured to Illinois Route 37 during the closure. Flaggers, message boards, and other traffic control devices will be used to guide motorists through the detour.
- The closure will begin at 7 p.m. on Monday, April 13, 2026.
- All lanes are expected to reopen by 7 a.m. on Tuesday, April 14, 2026.
The players
Illinois Department of Transportation
The state agency responsible for maintaining and improving Illinois' transportation infrastructure, including highways, bridges, and roads.
What’s next
Motorists should expect delays and are encouraged to use alternate routes during the closure. IDOT will continue to provide updates on the project through its social media channels and the GettingAroundIllinois.com traveler information map.
The takeaway
This overnight closure of I-57 is a necessary step in the state's ongoing efforts to improve and maintain its transportation infrastructure. While it will cause temporary disruptions, the bridge project is part of the larger Rebuild Illinois initiative that aims to enhance the safety and efficiency of the state's roads and highways.
