Ottawa Braces for Another Challenging Flood Season
Ottawa residents along the Ottawa River and its tributaries are no strangers to the annual spring flood watch — but this year, conditions are raising particular concern. Hossein Bonakdari, a researcher at the University of Ottawa, has been speaking with CBC about the factors fuelling this year's spring flooding crisis and what it means for communities across the region.
Spring flooding in Ottawa is shaped by a combination of snowmelt, rainfall, and the pace at which frozen ground thaws. When heavy snowpack from the winter months melts rapidly — especially when paired with spring rain — river levels can rise quickly and dramatically, leaving low-lying neighbourhoods scrambling.
Why This Year Stands Out
Experts like Bonakdari bring hydrological modelling and data analysis to bear on questions that have very real consequences for Ottawa homeowners and emergency planners. The University of Ottawa has become an important hub for this kind of research, given the city's proximity to the Ottawa and Rideau rivers — both of which have flooded significantly in recent years, most notably in 2017 and 2019.
This spring, a combination of above-average snowpack in the upper watershed and shifting precipitation patterns has put flood forecasters on alert. Climate change is increasingly implicated in these events: warmer winters can produce wetter, heavier snowpack that releases more water during melt, while unpredictable storm systems add an extra layer of risk.
What Residents Can Do
For Ottawans living near the river — areas like Constance Bay, Cumberland, Rockcliffe, and Britannia — the spring flood season requires active preparation. Emergency management officials typically recommend:
- Monitoring river level updates from the Ottawa River Regulation Planning Board and the City of Ottawa's emergency management page
- Moving valuables and vehicles away from flood-prone zones before water levels peak
- Reviewing home insurance policies to understand what's covered under overland flooding provisions
- Connecting with neighbours, particularly seniors or those with mobility challenges who may need extra help during an evacuation
The City of Ottawa has invested in flood mitigation measures in recent years, but experts consistently note that infrastructure improvements take time and that individual preparedness remains critical.
The Bigger Picture
Bonakdari's work at the University of Ottawa sits at the intersection of engineering and environmental science, focused on predicting and managing water-related hazards. His commentary on this year's flooding crisis is a reminder that Ottawa's relationship with its waterways — one of the city's defining and beautiful features — comes with real responsibilities.
As the climate continues to shift, the expertise of researchers like Bonakdari will be increasingly important to how Ottawa plans, builds, and protects its communities. Spring flooding is no longer a rare disruption; for many Ottawa neighbourhoods, it has become a seasonal reality that demands ongoing attention from city planners, scientists, and residents alike.
If you're in a flood-risk area, stay informed and stay prepared — and keep an eye on CBC Ottawa for the latest updates from experts on the ground.
Source: CBC News Ottawa, featuring University of Ottawa researcher Hossein Bonakdari.
