A white pickup truck and a yellow excavator are parked in front of large stacks of cut logs in a clearing, surrounded by dense forest and mountains under a partly cloudy sky. A white pickup truck and a yellow excavator are parked in front of large stacks of cut logs in a clearing, surrounded by dense forest and mountains under a partly cloudy sky.
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Sector: Oil & Gas
Client: Trans Mountain Pipeline ULC
Location: BC & Alberta

Involvement

The Trans Mountain Expansion Project (TMEP) required comprehensive environmental consulting in B.C. and Alberta to support the construction phase across complex and sensitive landscapes. McTavish delivered resource specialist services on behalf of the Project Owner, ensuring compliance and environmental protection from Edmonton, AB to Burnaby, BC.

Project Scope

McTavish managed and delivered environmental services for:

  • Spreads 6, 7A and 7B (Bridal Falls to Burnaby)
  • Three terminals – Westridge Marine Terminal, Burnaby Terminal and Sumas Terminal

This scope covered more than 100 linear km of pipeline infrastructure, involving three General Construction Contractors across diverse environments, including federally managed lands (IRs), agricultural land reserve (ALR), residential and industrial areas and environmentally sensitive sites. Work also included terminal upgrades with both marine and upland interactions.

The TMEP alignment featured major trenchless crossings, 271 watercourse crossings and 41 wetland crossings.

Resource Specialist Services

McTavish provided and managed services for:

  • Terrestrial wildlife and species at risk
  • Aquatic species at risk
  • Wildlife and wildlife habitat
  • Vegetation including rare plants and ecological communities
  • Soil and agriculture
  • Watercourses and wetlands
  • Contamination
  • Hydrogeology

Forestry Management and Oversight

McTavish also managed all forestry-related interests along 1,150 km of pipeline and associated infrastructure, including:

  • Equity (log marketing) and regulatory approval and compliance
  • Land acquisition and timber appraisal
  • Urban forest management and arborist assessment
  • Danger tree and tree risk assessment
  • Quality assurance of project documents such as Contractor Clearing and Access Plans and Owner Requirements
  • Operational oversight of nine General Construction Contractors during clearing and access establishment
  • MOTT liaison and interdisciplinary project team support as required

Through this work, McTavish supported the successful and compliant delivery of one of Canada’s most complex infrastructure projects.

A construction worker in a fluorescent safety jacket and hard hat stands on a dirt-covered bridge surrounded by lush green trees, pointing towards the forest ahead on a cloudy day. A clear, shallow stream flows gently over rocks through a lush, green forest with moss-covered boulders and dense foliage on both banks. A person holds a small, dark tadpole in their hand, with blurred rocks and a yellow and red stick visible in the background. A small, reddish-brown salamander is perched on the palm of a textured, gray gardening glove, with a blurred background of green foliage. A yellow excavator moves logs on a dirt clearing surrounded by trees, with snow-capped mountains and power lines visible in the background.
Two people in safety vests and helmets walk along railroad tracks beside a metal walkway, surrounded by dense green forest and a flowing river below.
A fast-flowing river runs through a dense forest of green trees, with sunlight filtering through the foliage and rocky banks lining the watercourse.
A grassy field with scattered small pine trees and dense forest in the background under a blue sky with wispy clouds.

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