Roads & Traffic

  1. Gateway Green Light

    Learn more about this cooperative effort to improve the coordination of traffic signals throughout St. Charles County.

  2. Getting Around

    The county strives to create and maintain a safe and efficient transportation system that provides a variety of ways for residents, visitors, and people who work here to get around.

  3. I-70 Construction Projects

    Learn about improvement projects scheduled in St. Charles and O'Fallon.

  4. Report Road Maintenance

    Submit a report regarding a road maintenance issue.

  5. Road Board

    Evaluates and recommends road and bridge projects to be funded by the county's transportation sales tax

  6. Road Closures - Flood

    Information about roads closed due to flooding in St. Charles County.

  7. Transportation Sales Tax

    Funds from this tax are used for road improvements that enhance the mobility and safety of our local roads.