Replacement of Concrete Crossing Structure N845 on the Otnabog River - 5th Canadian Division Support Base, Gagetown

The Department of National Defence (DND) has proposed a project. New Brunswick Department of Transportation and Infrastructure's (NBDTI) Crossing Structure N845 located over the Otnabog River, on Route 102, 8 kilometers south of the Village of Gagetown, is approximately 100 years old and is no longer structurally sound. The twin concrete arches were cast in place without reinforcing steel. This has resulted in significant cracking, spalling and leaching. NBDTI is planning to replace the structure with a new double box culvert. This was deemed to be the best design option at this location, since it has the least environmental and property footprint, and allows for reinstatement of the existing road alignment. A temporary detour will be installed using a modular bridge placed downstream (to the east) of the existing structure to allow traffic passage through the project area during construction to avoid a lengthy detour for local residents (approximately 200 kilometers). The design life of the new crossing structure is 75 years. NBDTI has no intention to remove this structure in the future, as there are no other alternatives for traffic to drive across the river in this area.

Latest update

June 8, 2023 – The public comment period on the project is closed. The Department of National Defence is considering comments received to help inform its determination on whether the carrying out of the project is likely to cause significant adverse environmental effects.


Key documents

Key documents
Document Number Document Title File Date
1 Public Comment Period on Intent to Make a Determination - May 19, 2023


Victor Turner
Department of National Defence
Victor Turner, Range Training Area Engineer
PO Box 17000 Stn Forces
Oromocto, New Brunswick E2V 4J5

  • Location

    • Otnabog River (New Brunswick)
  • Nature of Activity

    • Water Management
  • Assessment Status

    In progress
  • 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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