Notice: Closure of Rideau Street

Notice - Avis

As part of the O-Train Confederation Line Light Rail Transit (LRT) Project, Rideau Street will be completely closed to all vehicular traffic to permit further works related to the tunnel under Rideau Street.

WHAT: Rideau Street will be closed in order for jet grouting, compaction grouting and tunnelling work to take place.

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

WHEN: Overnight work which began on October 3 will now be extended into the daytime hours as well, which means the street will be closed to all vehicular traffic on a 24-hour basis beginning at 8 p.m. on Wednesday, October 19, 2016.

WHY: Rideau Street between Sussex Drive and Dalhousie Street has been closed nightly from 9:00 p.m. to 6 a.m. since October 3rd, 2016, to expedite the ground improvement program (jet grouting and compaction grouting) to assist in the remaining excavation of the tunnel.

The work is now moving to a 24-7 operation. This means that this section of Rideau Street will be completely closed to all vehicular traffic until the end of the year. Pedestrian access will be maintained throughout the work.

Although the constructor, Rideau Transit Group (RTG), tried to minimize the impacts on local stakeholders by carrying out the ground improvement work on an overnight basis only, allowing for an around-the-clock operation is a more efficient use of time and resources, since it eliminates the lengthy process of a nightly set-up and tear-down of the work site.

Working 24/7 will also allow RTG to take advantage of the current favourable weather conditions and avoid the more severe winter weather. Once the jet grouting operation is completed, the last 30 metres of the running tunnel can then be excavated. Having full road closure will also allow them to explore opportunities to accelerate other works in the area in an effort minimize future impacts on local stakeholders.


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 be put in place for taxis and delivery vehicles during this work.


The Transportation Services Department team has developed a comprehensive traffic and transit management plan to deal with this requested closure. During the closure, the OC Transpo routes that normally serve Rideau Street will be changed as follows:

  • Routes 1 and 7 will operate via Daly Avenue and will stop at the intersections of Rideau/Dalhousie and Daly/Nicholas;
  • Routes 2 and 4 will operate via Albert and Slater, and end at Elgin/Sparks;
  • Route 9 will end at Dalhousie/Rideau and will start at Sussex/Rideau;
  • Routes 12 and 18 will stop at Rideau/Dalhousie and will end at Daly/Nicholas.The first stop for eastbound trips will be at Daly/Nicholas;
  • Route 14 will operate via Mackenzie King Bridge; and
  • Sections of Routes 2 and 4 east of the canal and of Routes 9 and 12 west of the canal will also not operate.

The special late night OC Transpo shuttle service will continue to operate on Thursday, Friday, and Saturday evenings, to provide a connection from locations in the ByWard Market to overnight services on Mackenzie King Bridge.

Details of the transit service changes will be provided to transit customers on and and will be posted at the bus stops on the section of Rideau Street that will be closed.


  • Keeping the roadway open to pedestrian traffic during this period means that residents will still have full access to all Rideau Street businesses during the important holiday shopping season.
  • Noise levels are anticipated to be moderate.