# Sewer Line Excavation in Denver

Sewer line excavation in Denver is the right choice when the sanitary lateral is collapsed, the grade has failed, or the connection at the main has to be exposed and inspected. Denver Sewer and Water scopes the line first, then opens only as much ground as the repair actually requires.

- Open cut sewer excavation for collapsed or bellied lines.
- Grade correction and re-routing around structures.
- Tap and connection work at the public main.
- Trenchless alternative quoted when the host pipe supports it.
- Compaction and surface restoration to city spec.

## When Does a Sewer Line Need Excavation?

A sewer line needs excavation when the damage is too severe for a liner or burst head to correct. Collapsed clay, a belly holding water, or a separated joint at the property line are all cases where trenchless would leave the real problem in the ground.

The decision comes from the camera footage and the grade. We show you the video, mark the defects, and explain why excavation is the honest recommendation before any ground opens.

- Visible collapse or loss of pipe shape on camera.
- A belly or low spot that would hold wastewater.
- Separated joints or offset connections that break the line.
- Damage at the tap or property line connection.
- A re-route around a structure, addition, or protected tree.

## Open Cut or Trenchless? How We Decide

Trenchless repair works when the host pipe is intact and the grade is sound. If the pipe has collapsed, the slope has to be corrected, or the failure is at the connection to the main, excavation is the only method that solves the actual problem.

In some cases the best job is a hybrid: line the sound section and open cut only the failed portion. We quote what the pipe supports, not what is easiest to sell.

## How an Excavation Job Runs

1. **Camera and Locate** We scope the line, grade it, and mark depth and defect locations. Utility locates are requested and verified on site before any equipment moves.
2. **Permits and Traffic Control** Sanitary review, right-of-way permits, and a traffic control plan where the street requires one. We carry these rather than handing them to the owner.
3. **Site Protection** Access route planned, surfaces protected, spoils staged, and tree protection observed where the canopy or root zone is regulated.
4. **Careful Exposure** Around known crossings we vacuum excavate rather than dig blind. Paint on grass is an approximation, not a guarantee.
5. **Excavate, Shore, and Repair** The trench is opened and shored to depth, the pipe is replaced or the connection is made, and the work is inspected before it is covered.
6. **Backfill and Restoration** Compacted in lifts to the spec for the surface above, then the surface is restored to what was cut, including concrete, asphalt, and landscape.

## What Drives Excavation Cost?

We will not put a number on this page, because excavation pricing is driven by conditions we have to see first. Depth is the single largest driver, followed by what is above the pipe and what has to be put back.

The honest version is that a shallow lateral in an open back yard and a deep connection under a concrete street are the same pipe and very different projects. We quote after the scope and the locate, not before.

- Depth of the line and the shoring the trench requires.
- Soil conditions, groundwater, and rock.
- Surface being cut: turf, asphalt, concrete drive, or city street.
- Right-of-way permitting and traffic control requirements.
- Length of the run and the number of crossings in the way.

## Frequently asked questions

**Do you locate utilities before excavating?**

Always. Locates are requested and then verified on site. Around known crossings we expose utilities with vacuum excavation rather than digging blind. Paint on grass is an approximation of horizontal position, not a guarantee of depth.

**How much of the property gets torn up?**

It depends on the method the pipe supports. A full open cut replacement needs a trench the length of the run. A trenchless repair needs only access pits. We show the footprint on the site before the work starts.

**Do you restore the surface after excavation?**

Yes, to the specification for what was cut. Concrete is replaced with concrete, asphalt with asphalt, and turf is backfilled and compacted so the trench does not settle into a rut.

**Can the dig be limited to the failed section rather than the full run?**

Often. If the camera shows a localized collapse or connection failure, we open only that section and tie back into the sound pipe on both ends. That is the difference between a targeted repair and a full line replacement.

**Will excavation fix the slope of my sewer line?**

Yes. Grade correction is one of the main reasons to choose excavation. A liner follows the existing slope, so it cannot fix a belly. Excavation lets us re-bed the pipe at the correct pitch.

## Related Excavation Services

- [Excavation in Denver](https://www.denversewerandwater.com/excavation/denver-co) The full excavation lane: sewer, water, storm, septic, and tap work.
- [Trenchless Sewer Repair](https://www.denversewerandwater.com/sewer-lines/trenchless-sewer-line-repair/denver-co) Rehabilitating lines from access pits when the host pipe supports it.
- [Open Cut Excavation](https://www.denversewerandwater.com/methods/open-cut-excavation) When trenching is the right method and how we sequence it.
- [Hydro Excavation](https://www.denversewerandwater.com/methods/hydro-excavation) Vacuum excavation for safe exposure around live utilities.
- [Line Locating and Marking](https://www.denversewerandwater.com/methods/line-locating-and-marking) Finding the line and verifying depth before anything opens.

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Denver Sewer and Water is a privately owned, licensed and insured plumbing contractor. We are not affiliated with, endorsed by, or connected to Denver Water, the municipal water utility, or any government entity. To pay a municipal water bill or reach the public utility, visit denverwater.org.

Source: https://www.denversewerandwater.com/excavation/sewer-line-excavation/denver-co