St. Louis Region
Jefferson County driveways can trigger a right-of-way permit
Jefferson County requires a driveway permit for private or commercial driveways constructed on county right-of-way.
A driveway off a Jefferson County road can turn into a Public Works errand before the first load of rock arrives. Private and commercial driveways built on Jefferson County right-of-way need a county driveway permit.
The first question is not the gravel size. It is who maintains the road. Jefferson County keeps a county-maintained road list and property viewer for that check. A city street, state highway, private lane, and county road can each send the same-looking driveway question to a different office.
For a new entrance, a changed driveway, or land where access is part of the purchase, confirm the road layer first. If Public Works maintains it, use the county driveway permit materials before work begins.
References
Where this fits: this note belongs to Jefferson County. See every local note for the county on its page.