Ottawa commuters who rely on the Trillium Line network will need to adjust their travel plans next weekend as O-Train Lines 2 and 4 are scheduled to shut down for maintenance on June 13 and 14. The temporary closure will allow transit crews to complete a series of infrastructure and inspection activities designed to support the long-term reliability of the rail system.
The shutdown affects Line 2, which operates between Bayview and Limebank, and Line 4, the airport spur connecting South Keys and Ottawa International Airport. To minimize disruption, OC Transpo will operate replacement bus services throughout the closure period.
Riders travelling along Line 2 will be able to use R2 buses running between Bayview and Limebank stations. Those heading to or from the airport can use Route 105 buses, which will connect Ottawa International Airport, Cohere Centre and South Keys station while rail service is unavailable.
The maintenance work has been intentionally scheduled for a weekend when passenger volumes are typically lower. According to Ottawa Transit Services general manager Rick Leary, multiple maintenance projects have been coordinated into the same two-day period, allowing crews to complete critical work while limiting the impact on the largest number of riders.
Among the key activities planned is a comprehensive end-to-end inspection of the track infrastructure. Such inspections help identify wear, monitor rail conditions and ensure the system continues operating safely and efficiently as ridership grows across Ottawa’s transit network.
Replacement buses will serve affected O-Train riders
Although replacement service will be available, passengers should expect travel times to differ from their usual train journeys. Bus operations can be influenced by road traffic, passenger boarding times and weather conditions, factors that do not affect rail service in the same way.
Airport travellers may experience the biggest adjustment during the closure. Anyone with a scheduled flight should consider leaving earlier than normal and verify the latest transit schedules before departing. Weekend workers, students and residents living along the Trillium Line corridor are also encouraged to allow extra time for connections.
The closure comes at a notable moment for Ottawa’s rail network. Just days before the maintenance weekend, Line 1 is expected to return to two-car train operations on weekdays beginning June 8. The change follows months of work addressing a long-running wheel-related issue that had affected service capacity. Single-car train service will continue on weekends.
For transit users navigating the city during June, it is also worth monitoring broader transportation updates, including Ottawa road closures and transit changes that can influence travel times during major events and busy weekends.
Riders can find the latest schedules, station information and service alerts through the official OC Transpo website before travelling.
What riders should know before the June 13-14 shutdown
The temporary closure does not affect Line 1, which will continue operating throughout the maintenance weekend. However, passengers using Bayview, South Keys, Limebank, Cohere Centre or Ottawa International Airport should familiarize themselves with replacement bus boarding locations and updated schedules before beginning their trip.
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While the shutdown is temporary, it highlights the ongoing maintenance work required to keep Ottawa’s expanding rail network operating safely and reliably. With replacement buses in place and advance notice provided to riders, transit officials are aiming to complete the necessary work while keeping people moving across the city.
For anyone planning to travel on June 13 or 14, the best approach is simple: check service updates, leave extra time for your journey and be prepared to use replacement buses instead of the O-Train on Lines 2 and 4.
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