Stormwater Maintenance & Response
The storm sewer infrastructure contains approximately 16 miles of storm sewers, 467+ inlets, catch basins and manhole structures, and approximately 40 miles of drainage ditches to store and convey storm water runoff in order to minimize localized flooding. The Township Road District performs a reactive maintenance program which includes cleaning manholes, storm grates, dye testing storm sewer lines, pipe and culvert replacement, grouting, televising and responding to storm drainage problems reported by citizens to ensure the storm sewer system is functioning as designed and constructed.
Drainage cannot be overemphasized. Water affects the entire serviceability of a road. Water allowed to remain on top of a blacktopped road weakens the surface and, combined with traffic, causes potholes and cracking. If improperly channeled, water causes soil erosion and a breakdown of pavement edges.
During periods of heavy and/or prolonged rainfall, crews are dispatched to clean debris from storm sewer inlets and respond to calls by residents whose basements are flooding due to plumbing backups, sump pump failures, overland flooding or seepage.
The performance benchmarks established for storm sewer maintenance are to: respond to a storm water complaints within 2 hours of notification; repair minor deficiencies and/or temporarily restore flow of known service failures in the storm sewer infrastructure within 1 work week from receipt of notification; annually replace or rehabilitate deficient storm sewers; and annually grade, reshape and clean drainage ditches.
Download Our Storm Sewer Policy
Stormwater Management
EPA Office of Environmental Justice in Action
Storm Sewers and Drainage in Northfield Township
Storm sewers carry rainwater and snowmelt away from streets and homes, and keeping them clear is central to preventing local flooding in Northbrook, Glenview, and Northfield. The Road District maintains the township’s storm drainage system year-round.
How Storm Sewers Protect Your Neighborhood
When it rains, storm sewers collect runoff through curb inlets and grates and route it safely to larger drainage systems. A clear, well-maintained storm sewer network reduces standing water, protects pavement, and lowers the risk of basement and street flooding.
How the Road District Maintains Them
District crews inspect and clean storm sewer inlets and lines, clear blockages, and respond to drainage problems, especially before and during major storms. Ongoing maintenance keeps the system working when it is needed most.
How Residents Can Help
Keep leaves, grass clippings, and trash away from curb grates near your home, and never pour paint, oil, or chemicals into a storm drain — it flows untreated to local waterways. Report a clogged or damaged storm sewer to the District.
Report drainage issues at 847.724.7055 or contact us. Related: Streets and Flood Disaster Grant. Flood prep: Ready.gov floods.