Public Notice

Sewer Realignment and Removal – 1460 Riverside Drive – Public Comments Invited

February 9, 2022 The National Capital Commission must determine whether the proposed Sewer Realignment and Removal – 1460 Riverside Drivelocated 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 proposes the relocation and removal of sewers crossing property owned by the National Capital Commission.

The National Capital Commission property is currently traversed by a 1015x1500mm rectangular storm sewer and a 600mm diameter sanitary sewer including a 375mm diameter connection from the south. Each sewer will need to be realigned to follow the City owned right of ways along Riverside Drive, Terminal Avenue and the connection to the Transitway near Hurdman Station. With Riverside Drive having been recently overlayed, the sewers are set to be built with trench reinstatement to the nearest lane delineation to avoid asphalt segregation in the middle of a traffic lane. Once these sewers are realigned, the existing sewers on the National Capital Commission property will be removed and replaced with clean fill, topsoil and seeded.

During construction, a minimum of one lane will be open in each direction on Riverside Drive, Terminal Avenue and the connection to the Transitway. Short duration flagging operations on Terminal Avenue/Transitway may be required. Staging areas for construction will only be permitted within the City of Ottawa right-of-way and inside the work zone on the National Capital Commission property.

Construction is anticipated to begin in the spring of 2022 (pending approvals) and be completed by the winter of 2022.

Document Reference Number: 1

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