Arch 3 and Hull Trestle - Chaudière Crossing

In 2017, access to the Chaudière Crossing Arch No. 3 and Hull Trestle structures was closed to both vehicular traffic and active transportation due to health and safety concerns stemming from the potential instability of the underlying bedrock foundations. Following the completion of a feasibility study, it was determined that stabilizing the underlaying bedrock is not feasible. As a result, Public Services and Procurement Canada (PSPC) has decided to proceed with a phased deconstruction project of the aforementioned structures, driven by health and safety imperatives.

This project will also include site reinstatement activities, such as the construction of new retaining walls at the north and south ends of the demolished structures to retain the existing fill and ensure long-term site stability. The Project Team will collaborate closely with local stakeholders and authorities to ensure the work is carried out safely, with minimal disruptions to local traffic and surrounding communities.

Latest update

October 2, 2025 – The public comment period on the project is closed. The authorities are considering comments received to help inform the determination on whether the carrying out of the project is likely to cause significant adverse environmental effects.

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Key documents

Key documents
Document Number Document Title File Date
1 Arch 3 and Hull Trestle - Chaudière Crossing - September 2, 2025

Contacts

Environment, Health and Safety
Public Services and Procurement Canada
11 Laurier Street
Portage III, Place du Portage
Gatineau, Quebec K1A 0S5
Email: TPSGC.RCNLVEEListedeControle-NCRECMPChecklist.PWGSC@tpsgc-pwgsc.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

    • Gatineau (Quebec)

  • Nature of Activity

    • Bridges

  • Assessment Status

    In progress

  • Start Date

    2025-09-02

  • Proponent

    PSPC

  • Authorities

    • National Capital Commission
    • Public Services and Procurement Canada

  • Assessment Type

    Project on federal lands

  • Reference Number

    89861

Nearby assessments

...within 200 kilometres
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