BlueFox Engineering

Introduction

As part of an Urban Pipeline Upgrades Program, Calgary saw over 13km of 508mm (20”) and nearly 2 km of 324mm (12”) Natural Gas pipelines installed in the Southwest paralleling the Southwest segment of the Calgary Ring Road.

The Northwest pipeline segment in Calgary involved installing approximately 14km of 508mm (20”) natural gas pipeline that travels along the northwest leg of Stoney Trail within the Transportation/Utility Corridor.

Due to high traffic volume and ongoing major earthworks for the construction of the ring road, several active construction areas, major intersections, and environmentally sensitive locations, including multiple watercourse and wetlands, required installation by Horizontal Directional Drilling and Horizontal Auger Boring. As a result, nearly 40% of the total pipeline length was installed by trenchless methods.

Solution

Any existing pipelines were either removed from service, or transferred for natural gas distribution service at lower pressures. Several new low-pressure distribution lines and gate stations were also constructed to connect into the new infrastructure.

Utilizing multiple HDD rigs and a 24 hour / day construction schedule for all of the HDD crossings, the pipeline was successfully installed on budget and ahead of schedule.

Conclusion

BlueFox Engineering was retained to completed preliminary engineering and detailed trenchless design for each crossing location. We also provided on-site engineering support during construction.

 
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West Calgary Pipeline System

Introduction

Solution

Conclusion

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