There is an upcoming schedule change on Apr 12, 2026
Service Advisory
(NOV 6/25) 551
As of Nov 06, 2025 15:35, route 551 is under the effects of a detour. This detour affects the following stops:
- 50026 – Eastbound Marion at Dawson
- 50027 – Westbound Marion at Dawson
- 50030 – Westbound Marion at Panet West
- 50031 – Eastbound Marion at Panet West
- 50034 – Eastbound Marion at Dupuy
- 50133 – Westbound Marion at Dupuy
- 50142 – Eastbound Marion at Archibald
- 50144 – Northbound Archibald at Marion
- 50145 – Northbound Archibald at Cherrier
- 50146 – Southbound Archibald at Cherrier
- 50147 – Northbound Archibald at Kavanagh
- 50148 – Southbound Archibald at Kavanagh
- 50149 – Southbound Archibald at Kavanagh North
Reroutes are as follows:
- Route 551 (Watt – Windsor Park to Paterson & Lagimodiere) from Archibald Street will reroute following these instructions:
- Travel along Archibald Street and turn east on to Messier Street
- Continue along Messier Street and turn east on to Dawson Road
- Continue along Dawson Road and turn east on to Marion Street
- Return to regular service
- Route 551 (Watt – Windsor Park to Watt & Leighton) from Marion Street will reroute following these instructions:
- Travel along Marion Street and turn west on to Dawson Road
- Continue along Dawson Road and turn west on to Messier Street
- Continue along Messier Street and turn north on to Archibald Street
- Return to regular service

