Skip to Main Content

News - Details

Deerpath/Rte. 41 Viaduct/Pump Station Project

Upcoming: The southbound exit ramp (on the west side of Rte. 41) will be temporarily closed when the drainage pipe for the west pond at the Deerpath Golf Course is installed.


The contractor is currently excavating to build the ponds on Deerpath Golf Course and to relocate the existing water main on the SW corner of Ahwahnee Lane/Deerpath Road.  The bike path spur is closed just west of Ahwahnee Lane.

Should Deerpath need to be reduced to one lane, flaggers will be present to direct trucks entering and exiting Deerpath Golf Course.  Work will take place from 7 a.m.-7 p.m. on weekdays and from 8 a.m.-6 p.m. on Saturdays and Sundays.

Did You Know?  The City’s Forestry Section partnered with Lake Forest Open Lands to transplant some of the trees that were removed from the construction site onto the Deerpath Golf Course and Middlefork Farm Nature Preserve.


The important project to mitigate the flooding problem at Deerpath and Rte. 41 is scheduled to begin and will be funded by the Illinois Department of Transportation (IDOT) at a cost of $12,127,335.  The project is expected to be completed by December of 2022. 

A new pumping station will be constructed at the southwest corner of Ahwahnee Lane and Deerpath Road.  The current equipment, initially installed in 1951, has been malfunctioning for years and must be replaced.  At the same time, new storm sewers will be installed and two detention ponds will be created on the Deerpath Golf Course.  In addition, both lanes on Deepath under Rte. 41 will be widened, and two dedicated left turn lanes will be created to improve safety and the flow of traffic at the intersection. 

The City appreciates your patience and understanding during this disruptive period.  However, residents and affected institutions (Northwestern Medicine Lake Forest Hospital, Deer Path Middle School, Faith Lutheran Church, Deerpath Golf Course) should expect traffic delays.  Please check the City’s website, social media outlets and the City’s E-News for updates.  




220 E. Deerpath, Lake Forest, IL 60045
(847) 234-2600
Non-Emergency Police:  (847) 234-2601

close (X)