Minnewanka Landfill Surface Water Mitigations

The project aims to provide a solution to mitigate the existing surface water pooling on the Minnewanka Landfill site and migration across Lake Minnewanka Scenic Drive. The design includes construction of one swale and one ditch to redirect surface water away from the landfill site and into an existing natural watercourse that eventually flows into Cascade Creek. The swale is located on the upslope (northwest) side of the project site. It is 85 meters long with an average cut of approximately 0.8 meters and a slope ranging from 0.5% to 3.0%. The swale is intended to intercept the majority of the flows and divert them back into the historic drainage path before they reach the landfill. The ditch is located on the downslope (southeast) side of the project site, parallel to Lake Minnewanka Scenic Drive. It is proposed to be 137 meters long, approximately 3.8 meters deep at its deepest point, with a constant grade of 0.5%. The ditch is intended to intercept any remaining runoff originating from the landfill area and divert it back into the historic drainage path before it reaches the road.

Latest update

December 13 2025 – The public comment period on the project is closed. Parks Canada is 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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Key documents

Key documents
Document number Document title File Date
1 New project being assessed by Parks Canada – Public comments invited from November 13 2025 to December 13 2025 - November 13, 2025

Contacts

Banff National Park
Box 900
Banff, Alberta T1L 1K2
Email: helen.irwin@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

    • Banff National Park of Canada (Alberta)

  • Nature of Activity

    • Water Management

  • Assessment Status

    In progress

  • Start Date

    2025-11-13

  • Proponent

    Parks Canada

  • Authorities

    • Parks Canada Agency

  • Assessment Type

    Project on federal lands

  • Reference Number

    90005

Nearby assessments

...within 200 kilometres
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