Road Realignment and Culvert Installation - 3rd Canadian Division Support Group (CDSG), Detachment British Columbia Mainland - Chilliwack

The Department of National Defence (DND) has proposed a project which involves the realignment of roads, and installation of culverts. In recent years the Chilcotin area has seen large amounts of precipitation, and the lakes and wetlands are higher than they have been historically. This has caused flooding in several low lying sections of roads. Rather than attempting to maintain a road through a wetted area, roads will be realigned around these low areas. The project will involve road realignment in three different areas, and installation of culverts. At Drummond Lake on Stack Valley Road, a 260 meter section with a running width of 6 meters will be created to the east of the current road. At Horse Road between 9 and 10 kilometers (south of Lost Lake), the realignment will be 795 meters long with a running width of 6 meters. This section will be to the east of the original road, following a ridge that was logged after the 2010 fire and has exiting disturbance.

On Deer Trail (near Shell Creek), the new section will be 670 meters long, 5 meters wide, and involve installation of 4 culverts. One of these will be on a stream and will be larger than the others. With the realignment at Deer Trail, the existing culvert will need to be removed. Some restoration may be required at the creek. These realignments are intended to be permanent and are part of the long term required road infrastructure. There is an area that has been assessed for gravel development on Stack Valley Road and available pits. Any development of gravel source on Horse Road will follow the provincial standards.

Latest update

March 16, 2023— The Department of National Defence issued the Notice of Determination and determined that the project is not likely to cause significant adverse environmental effects.



Key documents

Key documents
Document Number Document Title File Date
2 Notice of Determination - March 16, 2023
1 Public Comment Period on Intent to Make a Determination - July 28, 2022


Gary Leblanc
Department of National Defence
Gary Leblanc, Requirement Officer
#6-5535 Korea Road
Chilliwack, British Columbia V2R 5P2

  • Location

    • 3rd Canadian Division Support Group (CDSG), Detachment British Columbia Mainland - Chilliwack (British Columbia)
  • Nature of Activity

    • Building and Property Development
    • Highways and Roads
  • Assessment Status

  • Start Date

  • Proponent

    Department of National Defence
  • Authorities

    • Department of National Defence
  • 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
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