Chaudière Crossing: Southern Structures Renewal (SSR)


  • The Chaudière Crossing, made of up of eight structures, passes over the Ottawa River and several hydroelectric waterways. This crossing links Eddy Street, in Hull, to Booth Street in Ottawa, uniting the communities of Gatineau (QC) and Ottawa (ON).
  • The Southern Structures Renewal (SSR) project bundles together work on three of the structures along the Chaudière Crossing:
    • Bronson channel span: replacement of the superstructure, pier, and abutments (a complete replacement of the bridge).
    • Ottawa hydroelectric power commission channel span and Buchanan channel span: minor repairs to secondary component (e.g., railings, bearings, lighting components).
  •  To avoid closures during construction, the project will follow a phased approach to ensure two lanes (one for each direction) remain open for traffic.


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.


Latest update

September 15th, 2023 – The authority 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 authority is inviting public comments until October 15th, 2023 respecting that determination.


Key documents

Key documents
Document Number Document Title File Date
1 Chaudière Crossing: Southern Structures Renewal (SSR) - September 15, 2023


Environment, Health and Safety
Public Services and Procurement Canada
2720 Riverside Drive
Ottawa, Ontario K1A 0M2

  • Location

    • Ottawa (Ontario)
  • Nature of Activity

    • Dams and reservoirs
  • Assessment Status

    In progress
  • Start Date

  • Proponent

  • Authorities

    • National Capital Commission
    • Public Services and Procurement Canada
  • Assessment Type

    Project on federal lands
  • Reference Number


Nearby assessments

...within 200 kilometres
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