# Catch basin installation in Plano, TX

> Catch basin installation in Plano, TX: we find the true low point, set the grate just below grade and pipe it in solid line to a legal outlet. Get an estimate.

URL: https://clayplanodrainagecompany.com/catch-basins/

A grated box set at the lowest point of a lawn, bed edge or patio that takes in surface water and sends it through solid pipe to an outlet.

Last Updated: November 11, 2026

- **Catch:** downspouts, low spots, side swales
- **Carry:** solid pipe at a steady fall
- **Release:** to the street, never the neighbor

## Puddle in the same spot after every storm?

Rain that runs off the lawn, the roof and the patio ends up in the lowest spot it can find, and in a flat Plano yard that spot can hold it for a day. A catch basin gives that water a way in.

[Clay Plano Drainage Company](https://clayplanodrainagecompany.com/) installs catch basins and the solid pipe behind them in Plano and nearby cities. A basin only works when it sits at the true low point and has a working outlet, so we find both before we set a single grate.

## What happens on the first visit

We start by watching how water moves over the surface, since a catch basin collects surface water only. A photo taken during the storm tells us more than one taken the next day.

- **Where the water comes from.** Roof corners, the patio, the driveway and a higher neighbor’s lawn.
- **The true low point.** We take spot elevations, because the lowest point is often a few feet from where the puddle looks deepest.
- **What washes in.** Trees, mulch beds and clippings upstream decide the basin size and the grate.
- **Fall to the outlet.** How far the pipe has to run, and whether it can fall the whole way.
- **Surface or soil.** If the ground stays soft long after the puddle drains, soil water is part of the problem and a basin alone won’t solve it.

You get a written estimate with each basin’s spot, its grate, the pipe route and the outlet.

## Catch basin or drainage inlet?

People use both names for the same grate in the lawn, and in DFW “yard drain” can mean either. They’re built differently, and the difference is what happens to the leaves.

- **A catch basin** is a box, often 12-inch-class plastic, with its outlet pipe set above the floor. The space below the pipe is a sump where leaves, silt and grit settle out.
- **A drainage inlet** is a grate on a fitting at the end of the pipe. Water and whatever it carries go straight into the line.

Under trees or downhill from a mulch bed, we use a basin. For clean water off a patio or a short roof edge, an inlet does the job. Where the soil itself stays wet, the [French drain vs catch basin](https://clayplanodrainagecompany.com/guide/french-drain-vs-catch-basin/) guide explains when a trench fits better.

## Picking the grate

The grate decides what gets in and what sits on top. We match it to the surface around it.

| Where it sits | Grate | Why |
| --- | --- | --- |
| Open lawn | Flat grate, just below the sod | Mows over, and water reaches it from every side |
| Planting bed | Domed grate | Stands above mulch and leaves, so water still gets in |
| Walk or patio edge | Flat grate, flush with the paving | No edge to trip on |
| Driveway | Traffic-rated basin and grate | Carries tire loads without cracking |

A grate that rocks, sinks or shifts usually sits on loose fill. We set every basin on a compacted, level base and tamp the soil around it, so the grate holds its height after the first few storms. For a long sheet of water across paving, a [channel drain](https://clayplanodrainagecompany.com/channel-drains/) collects better than one square grate.

## Setting the height right

A basin set too high never fills. Water can’t run uphill into a grate, so the rim has to sit a little below the soil around it.

We set the grate a short distance below finished grade and shape the lawn to fall gently into it from every side. From there the pipe takes over, leaving the basin at a steady fall to the outlet.

### Plastic or concrete basin?

Plastic basins suit most lawns and beds. They’re light, they cut cleanly for pipe connections, and they come in sizes for one or two inlet pipes.

A concrete basin earns its weight where a driveway or carport sheds a lot of water onto one spot, or where vehicles cross the grate. If an old 2-inch line behind a carport keeps clogging, the fix is usually a larger basin with a sump and 4-inch outlet pipe, not a second small line.

### Bedding the pipe

Solid pipe needs a firm, even bed so it can’t sag into a belly, a low section that holds water and collects silt. We lay it on compacted soil, or on a thin layer of stone where the trench bottom is soft.

The grate sits a little below the sod, so water reaches it from every side.

## What happens in a cloudburst

Every basin and pipe has a limit, and in the biggest storms the street sets it. Richardson, next door to south Plano, sizes its storm drains for storms with a 10 to 20 percent chance in a year.

In larger storms, Richardson’s streets are designed to carry water up to the top of the curb. When the gutter runs that full, a curb outlet can’t drain, and the basin fills and overflows.

- We set basin heights so the overflow spills toward the street across open lawn, not back toward the slab.
- The guide to [where yard drain water can go](https://clayplanodrainagecompany.com/guide/where-can-yard-drain-water-go/) covers outlet choices and their limits.

## Cleaning a catch basin

A catch basin is built to catch, so it needs emptying. Lift the grate after the fall leaves drop and again before the spring storms, and scoop out what has settled.

- **A little water in the sump is normal.** It sits below the outlet pipe. Water above the pipe a day after rain means the line is blocked.
- **Flush the outlet line** from the basin with a hose. If it won’t clear, [drain repair and cleaning](https://clayplanodrainagecompany.com/drainage-repair/) finds the blockage.
- **Keep the far end clear.** Clippings and mulch on an emitter lid hold it shut.

If a basin keeps flooding even when it’s clean, the low spot may be part of a bigger pattern. The [standing water](https://clayplanodrainagecompany.com/standing-water-in-yard/) page explains how we sort that out, and sometimes a small [regrade](https://clayplanodrainagecompany.com/yard-grading/) removes the low spot entirely.

## What a catch basin costs

Our typical range for a catch basin with a short pipe run is $500 to $1,500 per basin. That covers one basin, its grate and roughly 20 feet of solid pipe to an existing line or outlet; the written estimate sets yours.

A basin added to a drain we’re already building costs less than one on its own. Deep or concrete basins, paving to cut and patch, and long runs to a new outlet cost more. The [catch basin cost guide](https://clayplanodrainagecompany.com/guide/catch-basin-cost-plano/) breaks it down.

- Basins often take water from [downspout lines](https://clayplanodrainagecompany.com/downspout-drainage/) at the same low corner.
- Several basins on one trunk make up a [whole-yard drainage system](https://clayplanodrainagecompany.com/yard-drainage/).

## What's included

- A site visit that finds where surface water collects and where it comes from
- Spot elevations to confirm the true low point and the fall to the outlet
- A written estimate with basin locations, grate types, pipe runs and the outlet
- Texas811 locates, with basin spots and the pipe route marked in white
- Each basin set on a compacted, level base with its grate just below finished grade
- A grate matched to where it sits: lawn, planting bed or paving
- Solid pipe at steady fall to an emitter, an existing line or a permitted curb outlet
- Water poured into each basin to watch it reach the outlet before backfill
- Sod fitted tight around each grate and crossed sprinkler lines repaired

## Catch basin, drainage inlet or a small regrade?

|  | Catch basin | Drainage inlet | Small regrade |
| --- | --- | --- | --- |
| What it is | A box with a grate and a sump below the outlet pipe | A grate fitted straight onto the pipe or a shallow fitting | Reshaped soil that removes the low spot |
| Leaves and silt | Settle in the sump, below the outlet pipe | Travel into the pipe with the water | No grate to clog |
| Fits when | Leaves, mulch or clippings wash toward the spot | Clean runoff from paving or a short roof edge | The low spot is shallow and the lot has fall nearby |
| Upkeep | Lift the grate and scoop out the sump | Flush the line through a cleanout | Keep the new slope from settling back |

## Related resources

- [Cost Guide**How much does catch basin installation cost in Plano?** What a catch basin with its own short pipe run costs in Plano, why a second basin on the same line costs less, and what makes a basin dearer.](https://clayplanodrainagecompany.com/guide/catch-basin-cost-plano/)
- [Decision Guide**Do you need a French drain or a catch basin?** One works below ground and slowly, the other at the surface and fast. A simple timing test tells you which problem you have, and some yards need both on one line.](https://clayplanodrainagecompany.com/guide/french-drain-vs-catch-basin/)

## How we run a job

### Call

You tell us what you see, where it pools and when.

### Look

We walk the yard, measure the fall and find a legal outlet.

### Mark

We call Texas811 for locates and paint our route in white.

### Build

We trench to grade and set stone, fabric, pipe and outlet.

### Test

We run water through the system before any backfill.

### Restore

We put back sod and beds and repair crossed sprinkler lines.

## What this work looks like

Black plastic catch basin box set level on compacted base in an open hole, a solid pipe leaving its side

Green domed grate standing above the mulch in a planting bed beside a brick wall

Flat square grate set just below the grass in a mowed lawn after rain, water running toward it

Catch basin with its grate lifted off, showing leaves and silt settled below the outlet pipe

Before

After

## Catch basins: questions

### Does a French drain need a catch basin?

Only when surface water also reaches that area. A French drain takes water in slowly through its stone, so a storm's runoff can flood over it. A basin on the drain's solid line gives that surface water a direct way in, and the two share one outlet.

### Where exactly should a catch basin go?

At the true low point, which spot elevations find. It's often a few feet from where the puddle looks deepest, especially along a bed edge or a walk. A basin set even slightly uphill of the low point lets water pool beside it while the grate stays dry.

### Will the pipe clog if the water isn't filtered?

A catch basin is the filter. Its outlet pipe leaves the box above the floor, so leaves, grit and clay settle in the sump below it instead of riding into the line. Scoop the sump a couple of times a year and the pipe stays clear much longer.

### Which grate works in a flower bed?

A domed grate, sometimes called an atrium grate. It stands above the mulch, so water still gets in through its sides when leaves cover the top. A flat grate in a bed disappears under mulch within a season and stops taking water.

### How many catch basins will my yard need?

As many as there are separate low points, and no more. One basin handles one low spot. A long, wide low area or water arriving from two directions may need a second basin on the same line, and the visit shows which applies to your yard.

## Related services

- [Service**Downspout drainage** Buried solid pipe that takes roof water from each downspout past the beds and the slab to a pop-up emitter, an existing line or a permitted curb outlet.](https://clayplanodrainagecompany.com/downspout-drainage/)
- [Service**Yard drainage systems** One planned route that collects roof, surface and soil water from several parts of the yard and carries it in solid pipe to a legal outlet.](https://clayplanodrainagecompany.com/yard-drainage/)
- [Service**Channel drains** A grated trench set into concrete at a driveway, patio or garage apron that catches water running across the paving before it reaches the house.](https://clayplanodrainagecompany.com/channel-drains/)

## Get an estimate for catch basins

Tell us where the water stands and when. We walk the yard, measure the fall and send a written estimate.