# Hydrovac Excavation & Potholing in O'Fallon, MO

> Hydrovac potholing and daylighting in O'Fallon, MO. Expose buried utilities safely before you dig — our two hydrovac combo trucks are based right here.

Canonical: https://stldrain.com/blog/o-fallon-hydrovac-excavation
Last updated: 2026-10-26

St. Charles County, MO

Both of our hydrovac combo trucks are based at our O'Fallon shop. Hydrovac uses pressurized water to loosen soil and a vacuum to pull it out, so contractors can see buried lines with their own eyes before a bucket goes in the ground.

## Local conditions in O'Fallon

New commercial work along the I-70, Highway K and Highway N corridors means a lot of digging near existing utilities. After you call Missouri 811 and the lines are marked, potholing with hydrovac lets you daylight those lines and confirm their exact location and depth before excavation.

O'Fallon's heavy clay is sticky and slow to dig by hand. Hydrovac cuts through it with water and pulls it away by vacuum, leaving a clean hole and less disturbed ground around the utility.

We also use hydrovac for slot trenching, exposing lines near sensitive areas and cleaning out structures. Want a ballpark first? Try our hydrovac estimator, then call for a written quote.

## Areas we serve nearby

- I-70 corridor
- I-64 / Hwy 40 corridor
- Highway K corridor
- Highway N corridor
- Bryan Road
- WingHaven

## Diagnose first

You see camera video of the problem, we locate and map the problem spots, and you get a written quote before any work.

## Frequently asked questions

### Do I still need to call Missouri 811?

Yes. Call Missouri 811 before any digging. Hydrovac potholing then lets you see the marked lines and confirm their location and depth.

### Do you work with contractors on commercial sites in O'Fallon?

Yes. We pothole and daylight utilities for contractors on commercial and new construction sites around O'Fallon.

### How does clay soil affect a hydrovac job?

Clay digs slower than sandy soil, so it affects how much gets done in a day. Our estimator accounts for soil type, and the final price is confirmed on a written quote.

### Can I get a quick estimate?

Yes. Use our hydrovac estimator for a price range, or call 636-978-3478 for a free quote.

## Contact

|  |  |
| --- | --- |
| Phone | [636-978-3478](tel:6369783478) |
| Address | 852 Lone Star Drive, O'Fallon, MO 63366 |
| Pricing | No posted prices — call for a free quote |

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