Work underway on Illinois 251 in La Salle County

LA SALLE COUNTY – The Illinois Department of Transportation announced today that work is underway on Illinois 251 in La Salle County. The work zone is from the BNSF railroad bridge south of Mendota to just north of Interstate 80 in Peru.

Work this season will consist of pavement patching and resurfacing, which is expected to be completed in mid-November. Work will continue in spring 2026 with earth work. There will be daily lane closures controlled by flaggers during the $6.4 million project, which is expected to be completed by summer 2026.

Drivers are urged to pay close attention to changed conditions and signs in the work zone areas, obey the posted speed limits, refrain from using mobile devices and be alert for workers and equipment.

Over the next six years, IDOT is planning to improve more than 3,200 miles of highway and nearly 9 million square feet of bridge deck as part of Rebuild Illinois, which is investing $33.2 billion into all modes of transportation. Accomplishments through Year Six of Rebuild Illinois include almost $20.8 billion of improvements statewide on 7,897 miles of highway, 815 bridges and 1,181 additional safety improvements.

For IDOT District 3 updates on X, follow us at @IDOTDistrict3. View area construction details on IDOT’s traveler information map at www.GettingAroundIllinois.com.