Rehabilitation of Merivale Road culvert

The City of Ottawa is proposing to undertake the renewal of the Merivale Road culvert (SN117620) crossing Black Rapids Creek. The culvert is located on Merivale Road 1.25 km north of Fallowfield Road in the City of Ottawa. The culvert has reached the end of its service life, and the renewal work will provide a structurally sound culvert.

The culvert is located mostly on City of Ottawa property but extends onto lands owned by the National Capital Commission (NCC) at the ends (inlet and outlet). Therefore, physical work that extends onto NCC lands will be required to complete the necessary works. As this project is on NCC land, the project is being reviewed under the Impact Assessment Act (IAA). The NCC is providing guidance in relation to meeting the legal requirements of this Act and related environmental requirements.

The proposed construction is scheduled to commence in early 2024 and completed by March 15, 2024. The majority of the work will take place within the City's right of way, however, access to NCC lands will be required within the vicinity of the culvert's ends. Physical work on NCC lands will include regrading of embankment slopes and ditches, construction staging, and general restorations. Areas impacted by construction activities will be reinstated to their initial condition.

Minimal vegetation disturbance and removal of seven Manitoba Maple trees will be required. A Letter of Permission has been provided by the Rideau Valley Conservation Authority and a Request for Review has been completed by the Department of Fisheries and Oceans.


Latest update

January 10th, 2024 – The National Capital Commission issued its Notice of Determination and determined that the project is not likely to cause significant adverse environmental effects.


Key documents

Key documents
Document Number Document Title File Date
2 Notice of Determination - January 10, 2024
1 Notice of Intent to Make a Determination - Start of Public Comment Period - December 5, 2023


National Capital Commission
Environmental Assessment
40 Elgin Street
Ottawa, Ontario K1P 5A8

  • Location

    • Rehabilitation of Merivale Road culvert (Ontario)
  • Nature of Activity

    • Other, not otherwise specified
  • Assessment Status

  • Start Date

  • Proponent

    The National Capital Commission
  • Authorities

    • National Capital Commission
  • 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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