A road can run straight through Naperville and still belong to the State of Illinois, DuPage County or Will County instead of the City.
That distinction matters during snowstorms. Route 59, Ogden Avenue, 75th Street and several other major corridors are maintained by agencies outside Naperville Public Works.
Road ownership follows jurisdiction, not simply the municipality shown on the surrounding addresses.
Naperville maintains an extensive municipal street network, but major state and county roads cross through that network.
During a winter storm, each agency operates its own equipment, routes, priorities and treatment schedules. That means two roads only a few hundred feet apart can be maintained by completely different organizations.
This is especially noticeable at major intersections. For example, Route 59 is an IDOT roadway while 75th Street is maintained by DuPage County. The intersection is physically in Naperville, but the roads themselves are not both City-maintained.
Knowing the jurisdiction helps you understand who is responsible for snow removal, road conditions, potholes and other roadway issues.
The City boundary does not erase state and county road ownership.
Naperville Public Works handles City streets. IDOT handles designated state highways. DuPage County and Will County maintain their own designated county roads.
Where those networks cross, jurisdiction can change from one road to another at the same intersection — or even along different portions of a road with the same name.
The following list is based on the current road-maintenance information published by the City of Naperville.
IDOT maintains the major state highways that pass through Naperville. These roads can run directly through the city without being part of Naperville Public Works’ street-plowing network.
DuPage County maintains several major roads and road segments in the DuPage County portion of Naperville.
Will County maintains specified roads and road segments in southern Naperville, where the city extends beyond DuPage County.
Some roads change jurisdiction at a particular cross street. Do not assume an entire road is maintained by one agency simply because one section appears on this list.
These major corridors illustrate how state, county and municipal responsibilities overlap within the city.
One of Naperville’s busiest north-south corridors, but snow and roadway maintenance are handled by the State rather than the City.
US Route 34 passes through northern Naperville and is maintained by the Illinois Department of Transportation.
A major east-west road through Naperville that is listed by the City as a DuPage County-maintained roadway.
The portion east of Plainfield/Naperville Road is identified by the City as a Will County responsibility.
The responsible county changes at 87th Street: DuPage County north of 87th and Will County south of 87th.
The City identifies the segment north of Ogden Avenue as DuPage County-maintained.
Two of Naperville’s most recognizable roads are not City-maintained streets.
Illinois Route 59 runs north-south through western Naperville and carries major residential, retail and commuter traffic.
Ogden Avenue is US Route 34 and crosses northern Naperville from east to west.
The City of Naperville identifies both roads as IDOT-maintained. During winter weather, snow and ice operations on those corridors therefore fall under the State’s roadway-maintenance system rather than Naperville Public Works.
At Route 59 and 75th Street, Route 59 is under IDOT jurisdiction while 75th Street is under DuPage County jurisdiction.
Naperville spans both DuPage and Will counties, which creates several road segments where maintenance responsibility depends on location.
The City lists Plainfield/Naperville Road north of 87th Street as a DuPage County-maintained segment.
South of 87th Street, responsibility for Plainfield/Naperville Road shifts to Will County.
Each agency deploys its own equipment and crews. A nearby City street may have been treated recently while a county or state road is at a different point in its route cycle.
Agencies prioritize roads according to their own networks. State highways, county arterials and residential City streets serve different traffic roles.
A road-condition concern should go to the organization responsible for that roadway rather than automatically to Naperville Public Works.
Roads under separate jurisdictions can be salted or plowed at different times even when they intersect or run parallel to one another.
Outside-agency roads are the exception, not the entire Naperville road system.
Naperville Public Works says it handles salting and plowing across more than 1,500 lane miles of City roadway during winter weather.
Its priority system begins with major City traffic routes, then moves to residential side streets, followed by cul-de-sacs, alleys and dead ends.
How Naperville’s city plowing system worksOne intersection. Two roadway agencies.
Route 59 is under IDOT jurisdiction. The City identifies 75th Street as a DuPage County roadway.
That means someone driving through the intersection can transition between two separately maintained roads without ever leaving Naperville.
It is a good illustration of why municipal boundaries alone do not tell you who is responsible for winter road maintenance.
Whether the road is maintained by Naperville, IDOT or a county, public snow removal does not replace private-property snow service.
Driveways, private parking lots, private drives and other property surfaces remain separate from the public-road network.
Road responsibilities can change by segment, so the exact location matters when determining the responsible agency.
No. The City of Naperville identifies Illinois Route 59 as an Illinois Department of Transportation roadway. IDOT is responsible for snow and roadway maintenance there.
Ogden Avenue, which is US Route 34, is maintained by the Illinois Department of Transportation rather than the City of Naperville.
The City lists 75th Street as a DuPage County-maintained roadway.
The City lists 95th Street east of Plainfield/Naperville Road as a Will County-maintained roadway.
Responsibility changes by location. According to the City, DuPage County maintains Plainfield/Naperville Road north of 87th Street, while Will County maintains it south of 87th Street.
Adjacent roads can have different agencies, plowing priorities, equipment routes and treatment cycles. A City street, county road and state highway can therefore look very different during the same snow event.
Road jurisdiction and maintenance responsibilities can change. This guide is based on the current outside-agency road list published by the City of Naperville.
View the City’s Snow Plowing and Salting pagePublic agencies maintain public roads. If you need snow removal for a Naperville driveway, residential property, parking lot or commercial site, tell us about the property and requested service.