A recent report from the Auditor General’s office highlights issues with Canada’s flood risk assessment tools. The promised personal flood risk portal, meant to inform Canadians about their flood risk, is not operational and lacks consideration for climate change impacts. The government’s slow progress in providing necessary flood maps could exacerbate the country’s housing crisis.
According to Jerry DeMarco from the AG’s office, accurate climate change projections and accessible flood maps are crucial for informed long-term planning decisions regarding housing and infrastructure development. The delayed launch of Canada’s Flood Risk Finder and its omission of climate change data pose significant challenges for homebuyers and developers.
The report underscores that current flood risk information is inadequate for planning future developments, especially with changing climate patterns. The lack of up-to-date data increases risks and recovery costs for Canadians in the event of disasters. About 80% of populated areas in Canada are situated in flood hazard zones, with federal spending on post-flood relief on the rise.
The report also reveals that the existing flood mapping system is insufficient for effective risk mitigation. Proprietary restrictions prevent updating the portal with climate data. However, efforts are underway to develop a new system that integrates climate information and allows for regular updates, with pilot sites expected in 2026.
Natural Resources Canada’s funding for detailed flood mapping aims to enhance land use planning and reduce overall flood risk. Despite commitments to map high-risk areas by 2028, the department has fallen short in prioritizing critical regions. Collaboration with provinces and territories is essential to ensure timely availability of flood maps for informed decision-making.
Improved flood mapping and risk assessment tools can play a vital role in guiding housing and infrastructure development to enhance resilience and reduce disaster impacts. Addressing the delays and gaps in flood mapping progress is crucial to safeguarding Canadians and addressing the housing crisis.