CP Rail Mountain Subdivision, Mile 3.8 Boulder Creek Bridge Rehab and Bedload Removal

Canadian Pacific (CP) is proposing to conduct bedload removal and bridge repair at Boulder Creek (Mile 3.8 Mountain Subdivision) in Yoho National Park. Natural deposition of bedload material in the vicinity of the rail bridge in spring 2020 has resulted in a meander forming immediately upstream of the bridge, which is now conveying flow directly at and eroding the east abutment. Additionally, deposition of bedload material underneath the rail bridge has resulted in diminished flow capacity and clearance of the bridge. CP is concerned that the eroded abutment and decreased flood capacity may put the bridge at risk during the 2021 spring freshet. This project will be assessed with a basic impact assessment.

Latest update

March 28, 2021 – The public comment period on the project is closed. Parks Canada 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.


Key documents


Yoho National Park
P.O. Box 99
Field, British Columbia V0A 1G0
Telephone: 250-343-6783
Email: noelle.summers@pc.gc.ca

  • Location

    • Yoko National Park (British Columbia)
  • Nature of Activity

    • Railways
    • Bridges
  • Assessment Status

    In progress
  • Start Date

  • Proponent

    Canadian Pacific
  • Authorities

    • Fisheries and Oceans Canada
    • Parks Canada Agency
  • Assessment Type

    Project on federal lands
  • Reference Number


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.


Nearby assessments

...within 200 kilometres
Date modified: