Upgrade Primary Substation – 5 CDSB, Gagetown

The Department of National Defence (DND) is proposing a project. The Project involves constructing a new 138 kV to 12.47 kV primary electrical substation at 5th Canadian Division Support Base Defence (5 CDSB) Gagetown. The new substation will replace the function of the existing substation as the primary electrical supply for the Base. The Project includes a power transformer, electrical building, switching equipment, equipment foundations, overhead and underground electrical infrastructure, access driveways, security fencing, grounding systems and transformer-fluid containment. Portions of the existing Base electrical distribution system will be modified and rerouted to connect to the new substation. Construction will include tree and vegetation clearing, excavation, grading, placement of granular materials, drainage improvements, installation of two driveway culverts and stabilization of disturbed areas. Following commissioning, the substation will be subject to routine inspection, maintenance, and vegetation management.

Latest update

November 10, 2026 - The Department of National Defence intends to make a determination regarding whether the carrying out of the project is likely to cause significant adverse environmental effects. To help inform this determination, the Department of National Defence is inviting public comments until November 29, 2026 respecting that determination.

Participate

Key documents

Key documents
Document number Document title File Date
1 Public Comment Period on Intent to Make a Determination - November 10, 2026

Contacts

Gagetown Environment Officer
Real Property Operations Unit (Atlantic)
PO Box 17000 Stn Forces
Oromocto NB E2V 4J5
Email: RPA.Environment@forces.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

    • CFB Gagetown (New Brunswick)

  • Nature of activity

    • Building and Property Development
    • Other, not otherwise specified

  • Assessment status

    In progress

  • Start date

    2026-11-10

  • Proponent

    Department of National Defence

  • Authorities

    • Department of National Defence

  • Assessment type

    Project on federal lands

  • Reference number

    90887

Nearby assessments

...within 200 kilometres
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