Concrete Removal from a Lined 18″ Clay Pipe

Location: Southern California

Obstruction Type: Grout
Pipe type: 18-inch lined
Year: 2017
Region: Southern California

This Southern California client needed 190 feet of ground and native earth removed from a lined, 18-inch pipe directly adjacent to a marina and below sea level.

A ground-stabilizing process on a large construction project had resulted in the accidental inflow of grout and earth into the primary sewer, which closed off the entire pipe and connected lateral main lines. The source of the problem was a mismarked set of plans that identified an active sewer pipe as abandoned.

By teaming up with an excellent sewer cleaning company and working with the bypass pump team, Pacific Sewer was able to expedite the project. We removed all the cement and restored the full flow to the main pipe and connecting pipes without digging or damaging the in-ground stabilizing mix.