# French drains and curb outlets in Carrollton, TX, planned by a drainage contractor from the outlet back

> Drainage contractor in Carrollton, TX: French drains, channel drains and curb outlets, with the curb cut permitted through Carrollton Engineering. Book a visit.

URL: https://clayplanodrainagecompany.com/service-areas/carrollton/

Drainage contractor in Carrollton, TX: French drains, channel drains and curb outlets, with the curb cut permitted through Carrollton Engineering. Book a visit.

Last Updated: November 11, 2026

- **Permits:** City of Carrollton Engineering Department (French drains and curb cuts)
- **Storm drainage:** City of Carrollton (streets, curbs and public storm drains)
- **The rule that changes the job:** French drains via Engineering

## What usually starts a drainage job in Carrollton

### A drain that ends in a puddle

The pipe stops inside the fence and the lawn at its end is always wet. The outlet is too small or too close for slow soil, so it has to move or change.

### A line that needs the curb

The yard falls to the street but the parkway is in the way. Carrollton permits French drains and their curb cuts through the Engineering Department, so the permit leads the schedule.

### Gutter water on the driveway

Downspouts empty onto a driveway that slopes toward the garage. A channel drain across the slab and a buried line can carry that water out instead.

### An older drain that quit

A French drain that used to work now holds water. We flush it and run a camera before deciding whether to repair a section or replace the run.

## Does your drain end in a puddle?

A French drain should move water out of the yard, not relocate the puddle to the end of the pipe. If the lawn at the outlet is always soft, the drain is doing half its job.

[Clay Plano Drainage Company](https://clayplanodrainagecompany.com/) installs and repairs French drains, channel drains and curb outlets in Carrollton. The fix nearly always starts at the outlet. In Carrollton, a drain that ends at the street, and the curb cut it needs, go through the city’s Engineering Department.

## Inside the fence or out to the curb?

Should the drain end inside the fence line, or run past it so there’s no puddle where it stops? That depends on two things, the water and the soil.

A pipe that collects a downspout or two carries a modest amount of water. A line that drains a whole side yard in a big storm carries far more, all at once, to one spot.

| Outlet | Where it works | What to watch |
| --- | --- | --- |
| Pop-up emitter inside the lot | Open lawn with fall beyond it, modest flow | Slow soil can leave a wet patch around it |
| Line to the curb | The yard falls to the street; larger flows | Carrollton Engineering permits the drain and the curb cut |
| Yard pump basin | Back yard lower than the street | A pump and its discharge line to maintain |
| Spreading outlet in a bed or gravel strip | Light roof water only | Too much water and it ponds |

We look at both on the first visit. A soil probe shows how quickly the ground takes water, and the elevations show whether the curb is reachable with steady fall. The [guide to where yard drain water can go](https://clayplanodrainagecompany.com/guide/where-can-yard-drain-water-go/) compares the outlets in more depth.

## Curb cuts through Engineering

Carrollton permits French drains, and the curb cuts that let them reach the street, through its Engineering Department. That is the step that sets the schedule when your line ends at the gutter.

For you, it means the curb option has a little lead time, and the outlet has to be planned before the trench rather than added at the end. We arrange the permit as part of the job and show it as its own line on the written estimate. What we settle before applying:

- **Where the line crosses the parkway,** clear of meters, mailboxes and utility markings.
- **The outlet elevation** at the curb, so water leaves the pipe instead of standing in it.
- **How the curb is restored** once the outlet is in.

For a line that stays inside your lot, what applies is confirmed with the city for your address before the dig.

A curb outlet also has a limit worth knowing. When the gutter runs full in a heavy storm, water at the curb can’t leave the pipe as fast, so we keep the yard end of the line higher than the outlet and plan where any overflow goes.

## Keep it out of the plumbing

Carrollton doesn’t count a French drain that isn’t connected to plumbing as plumbing work. That fits what the drain does: a yard drain carries rainwater and groundwater, and it has no business tying into the house drain or the sewer.

We keep the two systems separate. On the visit we note where the house cleanouts and sewer line run, so the drain route doesn’t cross them carelessly, and so nothing in the design connects them. If a past owner tied a yard line into plumbing, we’ll point it out and plan the drainage to stand on its own.

## Driveways and roof water

On a house with gutters, much of the yard’s water starts on the roof. Gutters empty onto a driveway, a patio or a bed beside the slab, and that one spot takes the whole roof’s runoff in every storm.

Two fixes suit that kind of lot:

- **[Underground downspout lines](https://clayplanodrainagecompany.com/downspout-drainage/)** that carry roof water in solid pipe to the outlet, instead of dumping it at the wall.
- **A [channel drain](https://clayplanodrainagecompany.com/channel-drains/)** across a driveway or patio that slopes the wrong way, catching sheet flow before it reaches the garage or the door.

Which one fits is a matter of where the water lands. The [channel drain vs French drain guide](https://clayplanodrainagecompany.com/guide/channel-drain-vs-french-drain/) explains the difference: one catches water running across a hard surface, the other collects water from the ground.

## When an older drain stops working

A French drain that worked for years and now holds water has usually silted up, lost its outlet or been crushed somewhere along the run. We find out before anyone digs.

- **Flush test.** Water run from the top shows whether it reaches the outlet and how fast.
- **Camera.** A camera through a cleanout shows silt, roots or a broken section.
- **Then a price.** Cleaning is priced per visit; a section repair is priced once the camera finds it.

The guide to [how long a French drain lasts](https://clayplanodrainagecompany.com/guide/how-long-does-a-french-drain-last/) covers what wears a line out, and [drainage repair](https://clayplanodrainagecompany.com/drainage-repair/) explains the section fix.

## Between the turnpike and I-35E

Carrollton spreads along the President George Bush Turnpike, with I-35E running north through it and SH 121 at its northern edge. The cities on its borders write their drainage rules separately:

- **[Addison](https://clayplanodrainagecompany.com/service-areas/addison/)** needs a right-of-way permit for all construction in, under or over the public right-of-way.
- **[The Colony](https://clayplanodrainagecompany.com/service-areas/the-colony/)** allows no lot-to-lot drainage unless a drainage easement exists or is dedicated through every lot the water crosses.
- **[Richardson](https://clayplanodrainagecompany.com/service-areas/richardson/)** designs its streets to hold water up to the top of the curb in big storms.

## How we build a Carrollton drain

Every route starts at its outlet and works uphill. That order keeps the permit, the fall and the end of the pipe settled before the price.

- **Outlet chosen first,** inside the lot or at the curb, based on flow and soil.
- **Fall measured** from the wet spot to the outlet, so the pipe never holds water.
- **Stone, fabric and pipe** sized to the soil the probe finds; the [French drain cost guide](https://clayplanodrainagecompany.com/guide/french-drain-cost-plano/) shows what moves the price.
- **Cleanouts** where lines join or turn.
- **Water through the system** before backfill, then sod and sprinkler lines put back.

Where water collects in a low corner rather than a strip, a [catch basin](https://clayplanodrainagecompany.com/catch-basins/) may be the better collector, and [whole-yard drainage](https://clayplanodrainagecompany.com/yard-drainage/) ties several sources into one route.

## Drainage services in Carrollton

- [Service**French drains** A trench of washed stone and pipe that collects water held in the soil and carries it to a legal outlet at the street side of the lot.](https://clayplanodrainagecompany.com/french-drain-installation/)
- [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**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/)
- [Service**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.](https://clayplanodrainagecompany.com/catch-basins/)
- [Service**Drain repair and cleaning** Finding why an existing French drain, yard drain or downspout line stopped working, then cleaning it, repairing the failed section or redesigning what never worked.](https://clayplanodrainagecompany.com/drainage-repair/)
- [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/)

## How a job usually runs in Carrollton

### Start with the outlet

Send the address and a photo of where the drain ends, or where you'd like it to. The outlet question comes first in Carrollton because the curb option runs through Engineering.

### Measure and probe

On the visit we measure the fall to each outlet, probe the soil and check where the house plumbing runs, so the yard drain stays separate. The written estimate names the outlet.

### Permit and locates

Where the route ends at the curb, the Engineering permit for the drain and the curb cut is arranged as part of the job. Texas811 marks utilities and we paint the route white.

### Build and run water

We trench narrow with the sod set aside, set cleanouts where lines join or turn, run water through before backfill and walk you through the finished outlet.

## Neighborhoods, landmarks and routes

### Routes

- President George Bush Turnpike (SH 190)
- I-35E (Stemmons Freeway)
- SH 121

## Carrollton: questions

### Do I need a Carrollton permit for a French drain?

Carrollton handles French drains, and the curb cuts that let them drain to the street, through its Engineering Department. We arrange that permit as part of the job when the route needs it, and we confirm with the city what applies to a line that stays inside your lot.

### Is a Carrollton French drain plumbing work?

Not when it stands alone. Carrollton doesn't count a French drain that isn't connected to plumbing as plumbing work. We keep yard drains separate from the house plumbing and sewer, so the line stays a drainage job.

### Should my Carrollton French drain end inside the fence or at the street?

It depends on how much water the line carries and how slowly your soil takes it. A pop-up emitter inside the lot works where there is open lawn with fall beyond it. Where the end stays soggy, the line usually belongs at the curb, through the Engineering permit.

### What does a French drain or channel drain cost in Carrollton?

Our rates don't change from city to city. Our typical range for a French drain is $25 to $60 per foot, and a channel drain runs $60 to $150 per foot. Cleaning out an existing line is $250 to $600 for the first line. The site visit and written estimate set yours.

### How do I know if my old Carrollton drain can be cleaned or has to be replaced?

We flush the line and run a camera through it. Silt and roots that wash out mean a cleaning visit; a crushed or sagging section means a section repair, priced once the camera finds it. A run with no outlet or no fall usually needs rebuilding.

## Nearby service areas

- [Town of Addison (right-of-way permits; Drainage Criteria Manual)**Addison**](https://clayplanodrainagecompany.com/service-areas/addison/)
- [City of The Colony Building Inspections and Engineering (grading permits)**The Colony**](https://clayplanodrainagecompany.com/service-areas/the-colony/)
- [City of Richardson (permits for curb and right-of-way work confirmed per address)**Richardson**](https://clayplanodrainagecompany.com/service-areas/richardson/)

## Guides for yards in Carrollton

- [Decision Guide**Where do you drain a French drain in Plano?** The outlet decides the design, so we choose it first. Every option a Plano yard has, what each one needs, and how to pick when the lot is flat.](https://clayplanodrainagecompany.com/guide/where-can-yard-drain-water-go/)
- [Learn**How long does a French drain last?** A drain's life is set less by the pipe than by what gets into the stone and what blocks the outlet. The signs one is failing, the upkeep that keeps it going, and when to repair rather than rebuild.](https://clayplanodrainagecompany.com/guide/how-long-does-a-french-drain-last/)
- [Cost Guide**How much does a French drain cost in Plano?** What a foot of French drain pays for in Plano clay, what pushes a run toward the top of our range, and how a few common layouts add up.](https://clayplanodrainagecompany.com/guide/french-drain-cost-plano/)
- [Decision Guide**Should you use a channel drain or a French drain?** Both are long and narrow, and both end in pipe to the street. One sits in concrete and catches water on the surface; the other sits in soil and gathers water below it. How to choose, and when to use both.](https://clayplanodrainagecompany.com/guide/channel-drain-vs-french-drain/)

## Get an estimate in Carrollton

Tell us what the water is doing and where the house is in Carrollton.