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Construction &Traffic


O-Train Confederation Line Rideau Street overnight closure

As part of the O-Train Confederation Line Light Rail Transit (LRT) Project, Rideau Street will close nightly to all vehicular traffic beginning October 3.

This notice is to advise that, as part of the O-Train Confederation Line Light Rail Transit (LRT) Project, Rideau Street will close nightly to all vehicular traffic to permit further works related to the tunnel under Rideau Street.

WHAT: Rideau Street will be closed nightly in order for jet grouting work to take place.

WHERE: Rideau Street, between Sussex Drive and Dalhousie Street.

WHEN: Works are anticipated to begin on Monday, October 3 and will continue for nine weeks. Work will take place nightly from 8 p.m. to 6 a.m., which is when the road will be closed to all vehicular traffic.

WHY: When the City announced on July 28, 2016, that tunneling would resume under Rideau Street following the infrastructure failure, it was announced that additional measures would be taken to reinforce the tunnel. Rideau Street will close overnight in order to expedite this work.


Pedestrian and cycling access will be maintained throughout the closure and flaggers will be on site as required.


Rideau Street remains closed to general vehicular traffic. A detour will also be put in place for taxis and delivery vehicles during this work.


  • The closure of Rideau Street will result in the detour of all OC Transpo services to the Mackenzie King Bridge during the hours of the closure. Beginning on October 11 and continuing until the work is completed, the Rideau Centre has agreed to allow pedestrian movement overnight through their building from the Frieman entrance on Rideau Street to the bus stops at the Mackenzie King Bridge for transit customers who would normally use the bus stops on Rideau Street.
  • In addition, beginning on October 13 and continuing until work has completed, OC Transpo will operate a special free shuttle service between the ByWard Market area and the Mackenzie King Bridge to reduce the inconvenience for transit customers leaving the ByWard Market late at night. The shuttle will run Thursday, Friday, and Saturday nights from 10 p.m. to 3 a.m.
  • Details of the transit service changes will be provided to transit customers on com and and will be posted at the bus stops on the section of Rideau Street that will be closed.


  • Noise levels are anticipated to be moderate.


~ City of Ottawa, September 30, 2016