Province releases first phase of updated floodplain maps covering 58 communities

Floodplain maps identify areas that are susceptible to flooding and detail the potential impact on homes, businesses, infrastructure and the environment. Much like tsunami hazard mapping, these tools show existing risks rather than predicting specific future events, giving users a clearer understanding of where vulnerabilities lie.

The release of updated maps comes at a time when extreme weather events are becoming more frequent and severe across the province. Flooding has repeatedly demonstrated its capacity to disrupt communities, damage infrastructure and threaten lives, particularly in low-lying and river-adjacent regions.

According to provincial officials, having accurate and up-to-date mapping is essential for effective planning and mitigation. Local governments and First Nations can use the information to guide land-use decisions, determine where development should occur, and prioritize infrastructure investments designed to withstand flood conditions. Emergency management teams can also use the maps to refine response strategies and improve community preparedness.

Kelly Greene, Minister of Emergency Management and Climate Readiness, emphasized the practical value of the updated information. “These maps give people and communities crucial information they need to make informed decisions and better prepare for potential floods,” Greene said. “They will support smarter planning and help protect people, homes and critical infrastructure from increasing flood risks.”

The mapping effort was developed through extensive consultation and engagement with local governments and First Nations in each of the study areas. Officials say this collaboration ensures that local knowledge and regional concerns are reflected in the final products.

Phase 1 of the mapping initiative includes communities located along several major waterways:

The Fraser and Nechako Rivers around Prince George and Vanderhoof
The Coquihalla and Fraser Rivers from Yale to Mission
The Bulkley and Skeena Rivers from Houston to downstream of Terrace
Shuswap Lake and its surrounding river systems
The Upper Columbia and Kicking Horse Rivers, including areas near Golden and Invermere

These regions were selected based on their known flood risks, population centers and the need for updated data. While the maps are primarily intended for planning and public safety, they may also have implications for homeowners and businesses—particularly when it comes to insurance.

Insurance providers use a range of tools, including publicly available flood risk data, to determine where overland flood insurance can be offered. This type of insurance, which covers damage caused by surface water such as river overflow, is not typically included in standard home insurance policies.

Officials note that improved mapping could help some property owners better access coverage, as insurers will have more reliable data to assess risk. However, availability and pricing will continue to depend on each insurer’s criteria. The Province recommends that homeowners contact their insurance providers directly to better understand their options.

Beyond mapping, the provincial government has made significant investments in flood risk reduction over the past several years. Since 2017, more than $410 million has been committed to over 600 projects aimed at reducing flood hazards in partnership with First Nations and local governments.

Included in that total is more than $13 million dedicated to the first two phases of the Flood Hazard Identification and Mapping Program. These investments have supported not only mapping, but also infrastructure upgrades, planning initiatives and emergency preparedness measures.

Efforts to strengthen flood resilience have expanded further since 2021, with a focus on improving communication, monitoring and early warning systems.

Among the key measures implemented:

Enhanced communication and coordination between the B.C. government, local communities and neighbouring jurisdictions, including Washington State
Installation of additional monitoring stations on both sides of the Canada-U.S. border to track water levels and weather conditions
Deployment of real-time cameras on the Canadian side to enable proactive responses to rising floodwaters
Expansion of B.C. Emergency Alerts to include notifications for imminent flood risks to life

These measures are designed to ensure faster response times and better decision-making during emergency situations.

However, officials say the work is far from complete. Phase 2 of the floodplain mapping program is already underway and will expand coverage to additional waterways and communities across the province.

As climate change continues to intensify weather patterns, the need for accurate, actionable data is becoming increasingly urgent. Floodplain maps, once considered static planning tools, are now seen as dynamic resources that must evolve alongside environmental conditions.

For residents, the new maps offer a valuable opportunity to better understand local risks and take proactive steps to safeguard their homes and families. For governments and planners, they provide a foundation for smarter, more resilient development in a province where water has long shaped both the landscape and the lives of those who call it home.

With Phase 1 now complete, provincial leaders say the goal remains clear: to ensure that every community in British Columbia has the tools and information it needs to face the growing challenge of floods with confidence and resilience.

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Email: Adam.Berls@pattisonmedia.com

by Adam Berls

Province releases first phase of updated floodplain maps covering 58 communities

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