USGS Post Fire Debris Flow Hazard Assessment Map - Bush Fire

 Wildfire can significantly alter the hydrologic response of a watershed to the extent that even modest rainstorms can produce dangerous flash floods and debris flows. The USGS conducted a post-fire debris-flow hazard assessment for the Bush Fire using geospatial data related to basin morphometry, burn severity, soil properties, and rainfall characteristics to estimate the probability and volume of debris flows that may occur in response to a design storm.

The map below displays estimates of the likelihood of debris flow, potential volume debris flow, and combined relative debris flow hazard. Predictions may be viewed interactively on the USGS Landslide Hazards Program site at: https://landslides.usgs.gov/hazards/postfire_debrisflow/detail.php?objectid=282.

The Bush Fire Burned Area Emergency Response Team (BAER) is wrapping up resource assessments and will begin to recommend treatments within the fire scar.