Project Overview: EU182
This project re-lined a 1909 sewer trunk main along Whatcom Creek from Nevada right-of-way 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 showed deterioration in the pipe including holes and cracks. This project performed spot repairs as well as installed 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 required a custom liner. The sewer main runs adjacent to, and crosses under, Whatcom Creek. Protection of Whatcom Creek was 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 was to install a bypass pumping system to ensure the system was fully operational during the re-lining process.
Project funding from the City 420 Wastewater Fund.
Project Details
- Status – Construction complete in 2022
- Contract awarded – January 25, 2021
- Contract amount – $6,068,694.63
- Contractor – Allied Trenchless
- Vicinity Map
- Trail Detour Map
