Lake Windermere: groyne marker installation

From: Public Services and Procurement Canada

Learn about the Lake Windermere groyne marker installation project.

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Project overview

Location
Windermere Lake, British Columbia
Type of project
Improvements
Lead department
Public Services and Procurement Canada (PSPC)
Project status
Completion of Public Feedback Period
Next steps
For health and safety reasons the groyne needs to be marked. During the Summer and Fall of 2022 PSPC engaged with First Nations, local governments and the public about the marker installation. Public feedbacks and comments have been received and will be considered for selection of marker option.

Project description

The Lake Windermere groyne has deteriorated over the years and presents a risk to boaters and a risk of environmental damage, especially due to accidents. In its current condition, the Lake Windermere groyne poses a potential hazard to navigation and should be marked for safety reasons.

A groyne is an underwater structure that deflects river currents. Navigation markers are required to mark the groyne for health and safety reasons. We propose 3 options for these markers and after the engagement will proceed to chose and install one option to be the continuing navigation markers.

Navigational markers, including navigation signs and floating buoys, are used to alert boaters to underwater hazards. All of the proposed markers are safe for the environment and would not pose a safety concern for anyone using the lake.

Location

Lake Windermere is located near Invermere in southeastern British Columbia, within the Columbia River Valley. At 17.7 kilometres in length, it is one of the largest lakes in the region, and also has one of the warmest water temperatures.

Enlarged image of the regional map of Lake Windermere, British Columbia

Lake Windermere, B.C. - Regional Map (prepared by Hemmera, 2021/06/17)

Sources:

  • Contains information licensed under the Open Government Licences—Government of Canada, Province of British Columbia, Province of Alberta
  • Basemap: ESRI World Topographic Map
Enlarged image of the aerial view of the Lake Windermere groyne.

Aerial View of the Lake Windermere Groyne (prepared by Hemmera, 2021/06/17)

Sources:

  • Aerial Image: ESRI World Imagery

Options to mark the groyne in Lake Windermere

PSPC has identified 3 options to mark the groyne:

Option 1: Tall marker piles

Option 1 is 11 untreated wood piles, driven into the lake bed, with 5 metres of the marker pile showing at low water levels. There would be a navigation sign on the pile at the eastern end of the groyne to tell boaters where the navigation channel is.

Lake Windermere Groyne, proposed marker installation option 1, from east looking west. Prepared by Hemmera, May 12, 2021.

Tall marker piles, from east looking west

Lake Windermere Groyne, proposed marker installation option 1, from west looking east. Prepared by Hemmera, May 12, 2021.

Tall marker piles, from west looking east

Option 1 marker designed by PSPC March 1, 2021. Prepared by Hemmera, May 12, 2021.

Tall marker pile—Eastern pile with navigation sign

Option 2: Short marker piles

Option 2 is 11 untreated wood piles, driven into the lake bed, with 3 metres of the marker pile showing at low water levels. There would be a navigation sign on the pile at the eastern end of the groyne to tell boaters where the navigation channel is.

Lake Windermere Groyne, proposed marker installation option 2, from east to west. Prepared by Hemmera, May 12 2021.

Short marker piles, from east looking west

Lake Windermere Groyne, proposed marker installation option 2, from west to east. Prepared by Hemmera, May 12 2021

Short marker piles, from west looking east

Option 2 marker designed by PSPC May 1, 2021. Prepared by Hemmera, May 12, 2021.

Short marker pile—Eastern pile with navigation sign

Option 3: Marker buoys

Option 3 is 11 buoys, including 1 navigation buoy and 10 hazard buoys. Each buoy is anchored in place and is comprised of a strong plastic shell over rigid floatation foam, intended for in-water use. The lines to the anchors are non-floating and will not entangle swimmers or boat propellers even if they come in contact with the buoy.

Lake Windermere Groyne, proposed marker installation option 3, from east to west. Prepared by Hemmera, May 12, 2021.

Marker buoys, from east looking west

Lake Windermere Groyne, proposed marker installation option 3, from west to east. Prepared by Hemmera, May 12, 2021.

Marker buoys, from west looking east

Option 3, red marker buoys designed by PSPC March 1, 2021. Prepared by Hemmera, May 12, 2021.

Navigation buoy

Option 3, yellow marker buoys designed by PSPC March 1,2021. Prepared by Hemmera, May 12, 2021.

Hazard buoy

Project background

Our records show that we built the groyne in Lake Windermere in the 1800s for steamships on the Columbia River. It has wood cribbing and rocks placed on top of a brush mattress.

Since we built the groyne, it is an asset under the department’s responsibility. As such, we are obligated to ensure:

Because the groyne extends from shallow water, near the west shoreline of the lake, to the shallow navigation channel on the east side, markers are required for its full length.

We installed temporary marker buoys in fall 2020, which will remain in place until a continuing solution has been found. Any markers selected will still need to meet the requirements of the federal Navigation Protection Program.

More information

For more information on the project, email the LWG Project Team at tpsgc.rplacwindermere-prlakewindermere.pwgsc@pwgsc-tpsgc.gc.ca or write to us at:

Real Property Branch
Real Estate Services
1230 Government St
Victoria, BC V8W 2Z4

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