Enbridge Geohazard Pipeline Replacement Program

In GTM Mainland, British Columbia, Lauren partnered with Enbridge to execute the Geohazard Pipeline Replacement Program, mitigating risks in vital transmission lines and ensuring resilient energy delivery across the Westcoast system. Managing multiple replacement and mitigation projects from feasibility studies through detailed design and construction support, our team addressed active slide areas with specialized stress analysis, instrumentation, and site-specific engineering, overcoming steep terrains and tight outage schedules to deliver safe, compliant infrastructure that minimizes environmental impacts and operational disruptions.

Enhancing pipeline resilience in geohazard-prone terrains

This comprehensive program targets the Westcoast system’s NPS 30, NPS 36, and NPS 26 lines at key sites including NPS 26 ABML Kiskatinaw, NPS 26 ABML 8 Mile Creek, NPS 30 MML1 South Taylor, NPS 30 4BL1 Cottonwood, NPS 30 5AL1 Alexandria, and NPS 30 8AL1 Falls Lake. Lauren’s role as primary engineering provider encompassed designing replacement segments up to 500m in active slide areas, incorporating multiple pipe cut-outs to relieve built-up stress from movement, followed by robust segment replacements. Additional innovations included solar-powered remote monitoring units (RMUs) for strain gauges, alongside backfill and instrumentation designs to enable safe pipeline operations, all tailored to withstand geotechnical challenges.

Navigating steep slopes and compressed timelines for seamless delivery

The Enbridge Geohazard projects required agile solutions to tackle the demands of rugged, steep-slope work sites and condensed engineering and construction schedules aligned with critical pipeline outages, which Lauren addressed with expertise and precision. Through multidisciplinary collaboration, our team conducted thorough stress/strain analyses, geohazard and geotechnical reviews, and feasibility studies to optimize designs and mitigate risks without compromising safety or integrity. Close coordination with Enbridge stakeholders ensured efficient field support and execution, minimizing downtime and standby while upholding rigorous standards for detailed design and construction readiness in dynamic terrains.

What we delivered

Ongoing since 2020 in GTM Mainland, British Columbia, this program underscores Lauren’s proficiency in pipeline engineering and geohazard mitigation for enduring infrastructure reliability.

• Feasibility studies

Infrastructure: Up to 500m pipeline replacements with specialized stress/strain designs, backfill solutions, and instrumentation including strain gauges and solar-powered RMUs for active geohazard areas.

End-to-End Management: Provided multidisciplinary engineering from feasibility studies to detailed design, stress analysis, geotechnical reviews, and on-site construction support across multiple Westcoast system sites.

Risk and Schedule Optimization: Overcame steep slope challenges and tight outage timelines through proactive planning, ensuring compliant, resilient operations.

• Multidisciplinary engineering & detailed design
• Stress/strain analysis
• Geohazard and geotechnical review
• Construction field support