Full Closure Of I-270 Westbound Ramp To Illinois 111 Northbound For Approximately Two Weeks
Detour set as full closure of ramp from westbound I-270 to northbound Illinois 111 begins soon.
PONTOON BEACH – The Illinois Department of Transportation today announced that in addition to the ongoing closure of Illinois 111 at Interstate 270 in Madison County, a full closure of the ramp from westbound I-270 to northbound Illinois 111 will begin, weather permitting, Tuesday, Aug. 26, 2025.
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This closure is expected to last approximately 14 days as part of the I-270/Illinois 111 interchange reconstruction project.
The posted detour for the ramp closure is as follows:
- Eastbound I-270 to southbound I-255, then westbound Illinois 162 to Illinois 111.
- Westbound I-270: Take northbound Illinois 157 to westbound Chain of Rocks Road to northbound Illinois 111
- Northbound I-255: Take eastbound I-270 to northbound Illinois 157 to westbound Chain of Rocks Road to northbound Illinois 111
In addition, one other outer ramp will be closed for 14 days at a different time. The specific closure date for this ramp will be announced as the work progresses.
Work on the entire interchange is anticipated to be completed by the end of October.
Motorists should expect delays and are encouraged to use alternate routes during these closures. Drivers are urged to reduce speed, be alert for changing conditions, obey all construction signage, and refrain from using mobile devices while approaching and traveling through the work zone.
For IDOT District 8 updates, follow us on the social media platform X at @IDOTDistrict8 or view area construction details on IDOT’s traveler information map on www.GettingAroundIllinois.com.
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