Post-Wildfire Hazard Assessment and Risk Management

After a wildfire, the likelihood of natural hazards such as landslides , severe surface soil erosion and flooding can increase significantly. In wildland–urban interface areas (i.e. fires near populated areas), these hazards can increase the risk to life, property and infrastructure.

This issue came to the Board’s attention during its 2004 special investigation into repairing damage caused by fighting forest fires. Of 12 wildfires sampled, 6 experienced landslides or flood events since our field visits. In three of these cases, provincial highways were affected; houses were destroyed or damaged in two cases. In its report, the Board stated its intent to examine the process and responsibilities for identifying and managing post-wildfire risks to life, infrastructure and forest resources.