Steep Creek Hazards - BGC 2020

Steep creek geohazard areas prioritized in this study focused on fans, as these are the landforms most commonly occupied by elements at risk. The boundaries of fans define the steep creek geohazard areas that were prioritized. Upstream watersheds were assessed to identify geohazard processes and determine geohazard ratings but were not mapped. The main types of steep creek hazards are debris floods and debris flows. Debris floods occur when large volumes of water in a creek or river entrain the gravel, cobbles and boulders on the channel bed; this is known as “full bed mobilization”. Debris flows involve higher sediment concentrations than debris floods. Download Report