Public Notice

Mackenzie Avenue Rehabilitation – Public Comments Invited

February 18, 2022 The National Capital Commission must determine whether the proposed Mackenzie Avenue Rehabilitation, 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

Confederation Boulevard is the Capital's ceremonial and discovery route. It encircles the downtown areas of Ottawa and Gatineau, and has been the National Capital Commission's (NCC) flagship urban development project over the past several decades. It is also the route that foreign dignitaries and the royal family take for processions and during state visits.

The NCC is proposing the rehabilitation of a section of Confederation Boulevard on Mackenzie Avenue, between Saint Patrick Street and the Fairmont Château Laurier. As this was one of the first sections of the boulevard to be developed, much of the original material, such as the granite pavers, has reached the end of its life cycle. Other sections of Confederation Boulevard have undergone rehabilitation in past years.

The goal of the project is to create a welcoming pedestrian-scale promenade, and improve the tree well design. This will create a healthier environment for the trees planted along the sidewalk, and help extend their life.

The project scope includes the following:

  • Replacement of the sidewalk surface
  • Upgrades to the tree well design to ensure an adequate volume of growing medium, and minimize damage to urban trees resulting from winter operations

Approximately 20 trees, which are either dead or in poor health, will be removed from the existing tree wells. Construction is anticipated to begin in spring 2022 and continue until early 2023.

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