A catch basin is a surface inlet — a grated box set flush with the grade — that collects standing water or runoff and routes it through underground pipe to a discharge point. They're particularly effective in low spots where water consistently pools and where a french drain alone won't work because there's no subsurface flow to intercept.

Kerrville sits in the Texas Hill Country along the Guadalupe River, terrain genuinely different from anywhere else on this list — thin, rocky limestone soil over karst bedrock rather than the deep clay found across most of Texas, in a region notorious for its "Flash Flood Alley" reputation, among the most flood-prone terrain in North America due to the combination of steep, rocky terrain and intense, fast-moving Hill Country storm systems. Water that hits Kerrville's limestone hillsides moves fast and unpredictably rather than soaking in gradually the way it does in clay-dominated parts of the state, which makes conventional yard drainage design genuinely different here — thin soil over rock limits how deep a French drain trench can practically go in many spots, and grading has to account for flash runoff volumes that dwarf what a typical North or East Texas storm produces. The Guadalupe River's own well-documented flash-flood history here is part of why Hill Country building codes increasingly require careful attention to drainage design specific to karst terrain.

When a Catch Basin Is the Right Solution

Catch basins work best when water is collecting at the surface in a defined low point — such as the end of a driveway, a depression in the yard, or at the base of a slope. Unlike a french drain, which intercepts subsurface water as it moves through the soil, a catch basin captures water after it has already concentrated at the surface. They're often used in combination with french drains and underground pipe to create a complete drainage system.

Installation and Maintenance

The contractors we connect you with set the basin at grade level with adequate elevation to ensure water flows into it naturally, connect it to underground PVC pipe, and route the pipe to an appropriate outlet. Catch basins require periodic cleaning — leaves, silt, and debris collect in the basin over time and can reduce flow. Your contractor will show you how to maintain the basin after installation to keep it performing correctly.

Have Questions?

We're happy to discuss what you're dealing with before you commit to anything. Call us and we'll tell you what's likely causing it.

Call (469) 501-9927

This content is reviewed by the Texas Drainage Solutions editorial team and informed by licensed-contractor sourcing, manufacturer documentation, and established industry standards for Drainage. Read our editorial standards.