In El Paso County, driveway culverts are not all county maintenance

Drainage is a shared system, and the line between who owns which pipe runs right at the edge of your property. Knowing where that line falls saves an argument later.

The county Highway Division cleans and repairs county culverts and county ditches. That covers the culverts running under county-maintained roads and the ditches sitting in the county right of way. The pipe under your own driveway is a different story: the homeowner cleans and maintains it, including the nearby sections on each side where it meets the ditch.

A clogged driveway culvert rarely announces itself until weather forces the issue. After a summer thunderstorm, a fast snowmelt, or a round of road grading that shifts the grade, water that should slide under your drive backs up instead. It spreads across the road, fills the ditch, or runs toward a neighbor’s yard. From the road it can look like a county drainage failure, when the blockage and the fix both start at your driveway.

If you are buying, walk the driveway and watch where water crosses it and where the runoff heads next. If you already own the place, the habit worth keeping is to pull leaves, gravel, and silt out of the pipe on a dry day, well before a storm tests it. For the systems the county does maintain, and to confirm exactly where its responsibility ends, the Road and Bridge division is the place to call.