FY2024 641 N. Main Street Drainage Basin Project

Project Information

Project: The scope of work includes the construction of a stormwater detention basin, a sidewalk around the basin, a parking lot, and three (3) pickleball courts to be conveyed to the Lombard Park District upon completion. The extent of the work will necessitate some sidewalk, curb, and gutter, driveway apron, and roadway pavement removal and replacement. Tree removals and parkway restoration are also part of the project.   
Project Limits: The entire parcel of 641 N. Main Street
Timeline: Construction is anticipated to start in August 2024 and is anticipated to be complete in November 2024.

Frequently Asked Questions

What will be the impacts to traffic on Main Street or Goebel Drive? The only traffic impacts would be large construction vehicles entering or exiting the site.
What are the stormwater benefits of this project? The new stormwater detention basin will hold approximately 8.16 acre-feet of water, which is over 2,600,000 gallons of water. During wet weather events, this facility will be able to hold water in order to increase capacity in the Village’s stormwater sewer system.
The water will enter the basin, but does it leave? The basin is designed to hold water during wet weather events and then slowly release the water into the stormwater sewer system after the rain event. The water should not remain in the basin for more than a couple of days following a heavy rain.
The basin has a wetland bottom, does this mean more mosquitos? No, this will not increase mosquitos. The wetland bottom is largely for water quality. That vegetation acts like a filter for the water passing through. The basin is designed to drain all water into the storm sewer system and water will not remain on the bottom of the basin. As mosquitos breed in standing water, that exists for 7-10 days, this will not increase the number of mosquitos in the area.
What is the slope going into the basin? The basin has a 3:1 slope. This means that for every 3 feet of longitudinal distance, it goes up 1 foot. This slope allows lawn movers to be able to service the area and able-bodied residents to traverse it. There are no retaining walls with steep drop offs in this project.
During construction, what safety precautions will be in place to secure the site? The perimeter of the site will have construction fences to keep people out.
What will happen to the existing building? The building and parking lot will be removed under a separate contract before this project commences.