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St. Louis Region

Franklin County road questions start with road ownership

Franklin County's Highway Department maintains county roads and bridges, but private roads and city or state roads use different routing.

county roadsroad maintenancebridgesprivate roads

A pothole report in Franklin County starts with a map question: whose road is it? The Highway Department maintains more than 785 miles of county road, the right-of-way tied to those roads, 163 bridges, and the drainage structures that keep water moving away from the pavement.

County maintenance covers plain but important work: gravel, asphalt and concrete patching, roadside ditching, vegetation control, bridge maintenance, signs, and snow and ice control. It does not turn every road with a Franklin County mailing address into a county road. Private roads and subdivisions stay outside county takeover, while city streets and MoDOT routes have their own reporting paths.

For a resident dealing with a culvert, washed shoulder, blocked ditch, damaged sign, or winter road problem, name the road owner first. A county road belongs with the Franklin County Highway Department. City streets, MoDOT routes, and private subdivision roads need different doors.

References

More from Franklin County: browse every local note for the county.

Last checked against the sources above: July 16, 2026.

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