Housing, Infrastructure and Communities Canada
Samuel De Champlain Bridge Lights Up for Earth Hour
On March 22, the architectural lighting of the Samuel De Champlain Bridge will be switched off from 8:30 p.m. to 9:30 p.m. in support of Earth Hour. Safety lighting will remain on.
Note: After 9:30 p.m., the architectural lighting will return to the blue-green illumination that reduces the risk of disorientating birds during their migratory period, which runs until June 15.
https://www.canada.ca/en/housing-infrastructure-communities/news/2025/03/samuel-de-champlain-bridge-special-illumination-for-earth-hour.html