Trans Mountain Miette River Encroachment 6.5

Trans Mountain Pipeline is proposing to build a 208-metre-long protective rock structure or "wedge" and a berm beside a section of the Miette River in Jasper National Park to prevent further river encroachment and protect the pipeline from becoming exposed and damaged in the future. The rock wedge will be made of angular rip rap and native soils buried underground between the river and the pipeline, and below a small draw that is expected to be frozen at the time of construction. There is no plan for instream work in the Miette River. Depth of excavation for the project will be approximately 2.8m and 8m wide. A berm will be built on the surface at one end of the wedge using compacted soils excavated during construction of the wedge. Topsoil will be replaced over disturbed ground and re-vegetated with native plants and seed. The work is tentatively scheduled for winter 2026/2027.

Latest update

March 22 2026 – The public comment period on the project is closed. Parks Canada, Canada Energy Regulator and Fisheries and Oceans Canada are considering comments received to help inform its determination on whether the carrying out of the project is likely to cause significant adverse environmental effects.

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Contacts

Jasper National Park
Box 10
Jasper, Alberta T0E 1E0
Telephone: 780-852-6141
Email: evaluationdimpactjasper-jasperimpactassessment@pc.gc.ca


Disclaimer

This map is for illustrative purposes. The markers represent the approximate locations based on available data. More than one marker may be identified for a given assessment.

  • Location

    • Jasper National Park of Canada (Alberta)

  • Nature of Activity

    • Oil and Gas

  • Assessment Status

    In progress

  • Start Date

    2026-02-20

  • Proponent

    Trans Mountain Pipeline ULC

  • Authorities

    • Fisheries and Oceans Canada
    • Parks Canada Agency

  • Assessment Type

    Project on federal lands

  • Reference Number

    90246

Nearby assessments

...within 200 kilometres
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