Public Notice

Rehabilitation of Merivale Road culvert – Public Comments Invited

December 5, 2023 The National Capital Commission must determine whether the proposed rehabilitation of Merivale Road culvert located in Ottawa, Ontario is likely to cause significant adverse environmental effects in compliance with sections 81-91 of the Impact Assessment Act and the National Capital Act.

To help inform this determination, the National Capital Commission is inviting comments from the public respecting that determination. It is important to note that all comments received will be considered public. For more information, individual should consult the Privacy Notice on the Registry website.

Written comments for this project must be submitted within 30 days of the date of this posting, referencing project name and registry number:

By email:


By mail: Environmental Officer, Environmental Assessment group

40 Elgin, 5th floor

Ottawa, ON, Canada

K1P 1C7


The National Capital Commission thanks you for your comments, which will be considered in the project determination. Please note that responses may not be provided.


For National Capital Commission general inquiries, please contact:


Telephone: 613-239-5000 or 1-800-465-1867 (toll-free)

TTY: 613-239-5090 or 1-866-661-3530 (toll-free)


The Proposed Project

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.

Document Reference Number: 1

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