BlueFox Engineering

Project

The 670km Coastal GasLink Pipeline will transport natural gas from Groundbirch, British Columbia to the LNG Canada facility near Kitimat, British Columbia.

BlueFox Engineering was retained by Direct Pipe Installation (DPI) and Horizontal Directional Drill (HDD) contractors working on the project to provide various engineering, design, on-site construction inspection and support services on several major crossings along the project to install this NPS 48 pipeline.

Crossing design and geotechnical investigations were undertaken by the project owner. At the DPI crossings, BlueFox was retained to supplement the geotechnical investigations near the crossing launch points in order to obtain additional information for launch shaft shoring and DPI thruster foundation design requirements.

DPI

As part of the DPI pre-construction planning, BlueFox provided crossing geometry optimization, DPI equipment recommendations, drilling mud recommendations, site layout design, shaft and foundation design, water management, grading and dewatering design. BlueFox also supported the DPI contractors with method statement development for specific elements of DPI construction.

During construction, BlueFox provided full time on-site QA/QC plus technical supervision including office-based engineering support. The Salmon River DPI is the first DPI installation in Canada that utilized dual pipeline thrusters.

The Murray River HDD was the largest water crossing on the project, and largest of its kind for TC Energy and one of the largest in North America.

BlueFox was retained by the HDD contractor to provide an additional feasibility assessment for the NPS 96/NPS 84/NPS 72 telescoped 114m surface casing, casing shoe design and NPS 48 pipeline pullhead design.

 
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Coastal GasLink LNG Pipeline

Project

DPI

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