Sedimentologist Shahin Dashtgard from Simon Fraser University showcases the challenging nature of the muddied sand in the Fraser Valley in Delta, B.C., which is water-saturated and prone to liquefaction during an earthquake. This type of sediment poses a significant hurdle for the proposed pipeline terminal in Alberta at Roberts Bank near the Fraser River estuary.
The proposed new route for the pipeline, championed by Prime Minister Mark Carney and Alberta Premier Danielle Smith, mirrors the existing Trans Mountain pipeline corridor. However, a critical section of the route is yet to be established, starting from Hope, B.C., and extending through the Fraser Valley to Roberts Bank, deviating from the previous terminals near Metro Vancouver.
The suitability of Roberts Bank for the pipeline terminal is being scrutinized alongside another major project, Roberts Bank Terminal 2, an expansion of the Port of Vancouver. Both projects face seismic, environmental, and Indigenous community challenges that will impact the project’s progression and direction, despite its potential designation as a national interest project.
The potential coexistence of the pipeline terminal and the port expansion has raised concerns among environmentalists, emphasizing the impact on local species and critical habitats like Roberts Bank Wildlife Management Area.
The seismic risks in the Fraser Valley floor add further complexity to the project, with liquefaction being a major challenge. Engineering solutions to mitigate these risks are possible but may increase the project’s complexity and cost.
First Nations’ rights and titles play a crucial role in the project’s development, with several Indigenous communities awaiting more details before taking a stance on Alberta’s proposal. Tsawwassen First Nation, located near the proposed terminal, has consented to the port expansion but clarified that consent does not equate to support for the project.
The interplay of geological, environmental, and community factors will shape the future of the pipeline terminal project at Roberts Bank, with ongoing consultations and assessments necessary to address the multifaceted challenges ahead.