Upgrade Primary Substation – 5 CDSB, Gagetown

Public Comment Period on Intent to Make a Determination
Upgrade Primary Substation – 5 CDSB, Gagetown

November 10, 2026 — The Department of National Defence must decide whether the proposed project is likely to cause significant adverse environmental effects.

To help inform this decision, the Department of National Defence is inviting comments from the public on the project and its potential effects on the environment. All comments received will be considered public. For more information, individuals should consult the Privacy Notice on the Registry website.

Written comments must be submitted by November 29, 2026 to:

Real Property Operations Unit (Atlantic)
Canadian Forces Base Gagetown
Post Office Box 17000 Station Forces
Oromocto, New Brunswick E2V 4J5
E-mail Address: RPA.Environment@forces.gc.ca

The Proposed Project

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.