“” TC Energy - GeoVerra

TC Energy

TC Energy
Coastal GasLink Pipeline

Chetwynd, British Columbia

TC Energry

TC Energy


The Coastal GasLink pipeline, approximately 670 km in length, will safely deliver natural gas from northeastern B.C. to the LNG Canada facility in Kitimat. The overall project is a 48-inch pipeline with an initial capacity of 2-3 billion cubic feet per day with the potential for expansion through additional compressor stations. GeoVerra provides construction and legal survey services for Work Package 1, which is the first 140 km of the route.
When complete, this pipeline will deliver LNG (Liquified Natural Gas) from northeastern B.C. to the LNG Canada facility in Kitimat to then be shipped overseas to Asian markets, making it a significant project for both the client and the Canadian economy.
Coastal GasLink values the culture, lands and traditions of Indigenous groups and works closely with Indigenous communities across the project route. Coastal GasLink has signed project agreements with all 20 elected Indigenous groups along the approved route.

Client Brief

Our Approach

GeoVerra supports the construction and legal surveying for the first two sections of the pipeline (140 km) primarily in the Chetwynd area. GeoVerra’s survey support services for this project include:

  • Staking the right-of-way for clearing, stripping and ditching


  • Supporting pipe stringing by tallying all pipes as they are strung onto the right-of-way and comparing to the manufacturer’s specifications


  • Weld-mapping the pipes as they are welded above ground and then recording the as-built location of the welds as the pipe is lowered into the ditch to produce a detailed final as-built showing the locations of all welds, appurtenances, bends, etc.


  • Legal Survey support to comply with BC regulations to obtain a final right-of-way after the construction is complete.

Primary Services

Staking right-of-way
Staking ditch line and appurtenances
Pipe tally
Weld mapping
Lower-in as-built
Hydrotest support
Right-of-way cleanup support
Legal survey


The aim of the challenge was to assess the real-world performance of new methane sensing technologies in comparison with conventional optical gas imaging-based leak detection surveys.