More than just a sewer upgrade, Shoreline Trail and Sanitary Sewer Project revitalized one of Port Moody’s most cherished parks while championing Canada’s first-ever UV-cured Cured-In-Place Pipe (CIPP) lining for a pressure sewer. By prioritizing engineering innovation, environmental protection & accessibility, the project extended the lifespan of critical infrastructure by 75+ years—without major excavation or disruption to the community.

Aging sewer mains under Shoreline Trail posed a growing risk of sewage spills, environmental damage, and costly emergency repairs, while the multi-use pathway had deteriorated causing safety & accessibility concerns. Traditional cut-and-cover sewer replacement would require major excavation, loss of 300+ trees, disruption of culturally significant land and long-term impacts to sensitive ecosystems.

The City adopted KWL’s innovative engineering solution, selecting a high-performance UV-cured CIPP liner. This trenchless technology greatly reduced excavation, minimized ecological disturbance, and maintained service to all users during construction. Spanning 1.5 km through a corridor that included CP Rail right-of-way, steep foreshore slopes, and salmon-bearing streams, the project required precision engineering and adaptive planning to mitigate risks and maintain access.

Beyond sewer renewal, the project restored and enhanced the multi-use pathway, improving safety, accessibility, and resilience. The new trail was built over the existing degraded path, reducing ground disturbance & improving use with a smoother, wheelchair-friendly surface, and educational signage. One of the unique design features lets runoff and groundwater to infiltrate below the trail, reducing channelization & erosion, further enhancing climate resilience and sustainability.

By successfully combining trenchless technology with an environmentally and culturally sensitive design, this project sets a new precedent for sustainable urban infrastructure renewal.

KWL delivered a comprehensive options analysis, safeguarding vital environmental and cultural sites while rehabilitating aging sewer mains. KWL determined UV-cured CIPP liner would provide long service life, minimal excavation, and vastly reduced ecological impact.
Phased construction lessened impacts on ecosystems and public access. Excavation points were strategically used to install valve chambers that allow maintenance crews to inspect and repair the pipe in the future. The project was tendered in two packages:

1. Sewer rehabilitation using trenchless methods, greatly reducing excavation.
   
2. Multi-use pathway reconstruction designed to preserve mature trees and align with existing trails, minimizing disturbance and future root damage.
   

Collaboration with the City and project partners ensured alignment with cultural, environmental, and recreational priorities. Construction scheduling avoided key ecological periods, including Great Blue Heron breeding season and salmon migration windows.

Maintaining uninterrupted community service was a key challenge. KWL developed a custom sewer bypass using existing infrastructure and modified flow strategies, eliminating the need for extra pumps.

Multiple site constraints required precision engineering and adaptive sequencing. Through innovative design, real-time monitoring, and strategic phasing, KWL navigated environmental, logistical, and technical challenges.

KWL’s innovative engineering rehabilitated aging sanitary infrastructure while greatly reducing excavation and environmental disturbance. The UV-cured CIPP lining extended the sewer’s lifespan by 75 years, preserving 300+ trees and protecting culturally significant land. Trail upgrades enhanced safety, accessibility, and drainage, while sustainability features improved climate resilience. This project sets a new standard for urban infrastructure renewal.