Calgary unveils new Sunnyside flood barrier
Posted May 14, 2026 7:24 pm.
Calgary has unveiled its new 2.4‑kilometre Sunnyside flood barrier along Memorial Drive, a major infrastructure project designed to protect the area from a 1‑in‑100‑year flood.
The barrier was formally introduced on Thursday and was built to prevent the Bow River from breaching as it did in 2013.
City officials say it marks the strongest level of flood preparedness Calgary has ever achieved, arriving just as the city enters its annual flood season from mid‑May to mid‑July.
Martin Pritchard, Manager of Linear Infrastructure Delivery, said Sunnyside’s low‑lying geography made the project essential. Residents who remember the 2013 disaster recall submerged police cars and debris lodged high in trees.
Some say the new wall brings trade‑offs as it blocks river views for some homeowners but offers critical protection.
“It’s a give and take,” said resident Billie Orr.
The $50‑million project was funded by all levels of government, though not all Calgarians agree with the spending. Aki Parker, who evacuated during the 2013 flood, believes transportation upgrades should have taken priority.
City officials maintain the barrier significantly boosts Calgary’s resilience. Frank Frigo, head of environmental management, said the city has now eliminated “about 71 per cent of the damage profile we saw back in 2013.”
The barrier also includes pathway upgrades, new seating areas, gathering spaces, and preserved memorial features. Additional restoration work continues until fall 2026.
This year’s flood season arrives with above‑average mountain snowpack, but River Engineering Leader Sandy Davis says that does not increase flood risk. Heavy upstream rainfall is the primary driver of major flooding, according to Davis.
Snowmelt typically contributes less than 20 per cent of river flow during flood events and helps maintain healthy water supply.
Residents are encouraged to stay informed about river conditions and risks at calgary.ca/floodinfo.
