Skip to content

April - June: Notice of Night Work Parkway/Byron Tunnel

As part of the Stage 2 O-Train Light Rail Transit (LRT) project, crews and equipment will be working overnight in the Parkway/Byron Tunnel.

Cut and cover tunnel structures (concrete tunnel floor, walls, and roof) along Kichi Zìbì Mìkan Parkway will be completed this year, along with tunnel backfill operations. Overall, at the end of March the Parkway/Byron Tunnel was 90% complete.


Night work is required in the Parkway/Byron Tunnel, as work proceeds on the cut and cover tunnel structures activities. Night work may include excavation (digging with a small excavator) and hauling, installation of form work, concrete pouring, utility installation, fuelling, equipment maintenance and servicing, and site housekeeping.

Note: Pile drilling, rock breaking, vacuum truck excavation is NOT permitted overnight.


KEV anticipates that periodic night work will be required and ongoing throughout 2024. Night work will occur subject to a valid noise by-law exemption, in addition to daytime activities on weekdays and weekends.

Night Work: Monday to Saturday 10:00 p.m. to 7:00 a.m. and 10:00 p.m. to 9:00 a.m. Sundays and Statutory holidays - will occur, as required, through June 2024.


To complete critical project work that is time sensitive and/or required during off-peak hours.


Parkway/Byron Tunnel from Rochester Field along Kichi Zībī Mīkan and along Byron Linear Park to north Lincoln Fields.

Map depicting nightwork on the Cut and Cover Tunnels along the Parkway and Byron cooridor.

Anticipated Impacts

Noise and vibration from crews and heavy equipment may be expected

All construction vehicles and equipment, working overnight on the Parkway/Byron Cut and Cover Tunnel, will be equipped with broadband back-up alarms. Trucks use approved haul routes and workers and contractors park in designated parking areas.

Generators are required to run equipment in the tunnels. When possible, generators are wrapped in noise barriers.

Site lighting for overnight work is required to maintain safe working conditions for workers. The use of lights will be minimized where possible and special attention paid to ensure that it is not impacting nearby residences.

The City of Ottawa thanks residents for their patience as we work to complete these construction activities.

The safety of the public and workers is paramount,
and we thank you for your patience during construction.


Accessibility is an important consideration for the Stage 2 LRT project. The Stage 2 team makes every effort to provide access through and around construction sites. If you require special accommodation, please contact

Ward 7 Night Work Summary Distribution List

A weekly summary of nightwork providing greater detail as to type and location of activities, is shared at the outset of each week. If you would like to receive the Ward 7 Weekly night work summary, please email to be added to the distribution list.

Future work is required in this area. Additional construction updates, such as changes to work sequencing and the duration or impact of this work will be communicated via the Stage 2 project e-newsletter. To receive these electronic updates please sign up at and select updates for “New Orchard Station”, “Sherbourne Station” and/or “Kichi Sibi Station”. For other accommodations, or questions, please contact:

Stage 2 Team
Rail Construction Program,
City of Ottawa

The construction work outlined in this notice is subject to change. Work may be delayed

or extended due to weather or other unforeseen circumstances.