Whatcom Creek Trunk Main

​​​​​​​​​​​Project Overview: EU-0182

This project will re-line a 1909 sewer trunk main along Whatcom Creek from Nevada R/W West to the State/York intersection. The goal of the project is to extend the life of the egg-shaped pipe by re-lining the interior. Videos of the interior of the main shows deterioration in the pipe including holes and cracks. This project will perform spot repairs as well as install new manholes at specific locations to facilitate maintenance.

The sewer main is not a traditional pipe but a custom brick and concrete, egg-shaped conveyance system. Re-lining this type of structure will require a custom liner. The sewer main runs adjacent to, and crosses under, Whatcom Creek. Protection of Whatcom Creek will be a high priority throughout construction. The sewer main services a large section of the City and cannot be taken off-line, so a key project element will be the installation of a bypass pumping system to ensure the system is fully operational during the re-lining process.

A portion of the Whatcom Creek Trail will be closed during construction near where the trail connects to Lincoln Street/Meador Avenue. See Trail Detour Map for trail detour information.

Project funding from the City 420 Wastewater Fund​.

Status – November 2021

Accomplishments: Construction contract awarded to Allied Trenchless.

Next Milestones: Set up Whatcom Creek Trail detour onto Meador Street, installation of sanitary sewer bypass, and cleaning and rehabilitation of trunk main north of Meador Avenue crossing.

Project Details


​Larry Scholten, P.E.
Project Engineer
(360) 778-7923

Public Works Contacts

Participating Departments

Affected Neighborhoods