Katy Drainage Home / Services / Dry Creek Beds and Swales
Open channels instead of pipe
A swale is a shallow, shaped low line in the yard that carries surface water. A dry creek bed is a swale lined with rock. Both move water in the open, where you can see whether they are working.
Grass or Rock
Grassed swale
A gentle depression covered in turf. Mows like the rest of the lawn and is what many Katy builders cut along side and rear lot lines.
Dry creek bed
The same channel lined with fabric and river rock. Holds up to faster water and to areas where grass will not grow, such as deep shade.
Both work on the same principle: collect sheet flow from the lawn and carry it along a continuous fall to an outlet. On Katy ground, where the USDA soil description puts most slopes under 1 percent, that fall is gentle, so the channel has to be graded carefully along its whole length.
Good Fits and Poor Fits
| Works well when | Struggles when |
|---|---|
| There is a clear, lower outlet at the end of the run | The end of the channel is the lowest point on the lot |
| The builder’s original swale has been blocked or filled | The problem is saturated ground rather than surface flow |
| Shade or foot traffic has killed the grass in a wet strip | The channel would have to run through a drainage easement someone else controls |
Two Conversations to Have First
Many Katy subdivisions are deed-restricted, and a rock channel is a visible exterior change. Ask the association whether it needs approval before the rock is ordered.
A channel along a shared lot line affects both yards. Texas Water Code §11.086 prohibits diverting surface water in a way that damages another owner’s property, so the channel should carry water toward the street or the easement, not onto the neighbor.
Ask Whether an Open Channel Fits
Describe where water crosses the yard during rain. The contractor can tell you whether a swale has room to fall.
Call (346) 239-7247 Send the Details