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Douglasdale and McKenzie Lake Slope Stability and Pathway Project

Project update - June 4, 2020

Work is being completed on the project  to address the slope movements on the escarpment east of the Bow River adjacent to the communities of McKenzie Lake and Douglasdale. These movements  caused damage to The City's pathway along a 3.5 km section.

This project has included two main areas:

  • Pathway behind Mt. Alberta View S.E. (Phase 1)
  • Pathway north of 130 Avenue S.E. (Phase 2)

The pathway in these areas is now open for people to use.

Habitat Restoration Plan has been developed  and is being implemented.

Monitoring of the pathway is ongoing to detect signs  of any further movement.

About the project

Slope movements on the escarpment east of the Bow River adjacent to the communities of Douglasdale and McKenzie Lake caused damage to The City's pathway along a 3.5km section.

Since 2005, The City of Calgary has worked with external consultants to monitor, investigate and develop restoration options for The City's infrastructure (the slope and the pathway) in accordance with the Slope Stability Management Framework. In August 2015, a geotechnical consultant completed a feasibility study with initial recommendations and cost estimates for the long-term stabilization of the slope and reconstruction of the pathway. The City's responsibility is to stabilize the slope and the pathway to ensure the safety of pathway users.

In 2016 The City began working on the design and construction of a solution to improve the stability of the slope and the pathway that supports the slope. Repair work in 2016 and early 2017 involved drilling piles to provide firm ground on the pathway area at the top of the slope where the pathway collapsed.

Heavy rain during the summer of 2016 caused erosion of the pathway in a section behind Mt. Alberta View. As a result of an inspection process the pathway was closed and restoration work began. The City will continue to monitor the slope and the pathway.

Slope stability projects are highly complex, and one solution will not fit for every section of the pathway. There may be a variety of solutions developed in order to meet the conditions in each section.

Image gallery

Project timeline

  • September 2016:
    Restoration work begins on most urgent section of pathway instability
  • Late 2017:
    Construction of long-term solution begins on Phase 1
  • Spring 2019:
    Phase 2 construction begins
  • Fall 2019:
    Completion of Phase 1
  • Summer 2020:
    Completion of Phase 2

Communication

We will continue to provide updates about this project.

Please fill out the 311 online form if you require more information.

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