Description of project:

Coarse Filter Watershed Analysis: Knowledge of existing watershed condition is a key component needed for forest plan revision and other ongoing tasks. The Coarse Filter Watershed Analysis is a relatively quick assessment procedure for estimating inherent watershed sensitivity and current watershed condition. It uses readily obtainable variables, which index sensitivity and disturbance. Sensitivity variables are sediment delivery hazard and stream gradient. Disturbance variables are grouped by roads, forest stand condition, grazing, and other disturbances. The procedure can be used for landscape assessments; EAWS; TES aquatic species conferencing and/or consultation. The analysis is intended to be completed for 6th field (Hydrologic Unit Code) watersheds. The resulting index of watershed condition can be used at various scales (i.e., forest wide, sub-regional, regional, etc) for comparison and analysis purposes with consideration of the limitations of the input variables.

Sample Poster

R1/R4 Watershed Condition Coarse Filter Process (Steps 1-7)

Collaborators:  USFS R1-R4