Stream Restoration Prioritization

Seattle Public Utilities, 2007 & 2009

Objective:

Determine which segments of Seattle-area streams would most benefit from restoration dollars by calculating each area's salmon habitat quality and threats.

Result:

Combined and standardized data about 768 100-foot segments of 5 Seattle-area streams. Used a pairwise comparison analytical technique to derive weighted criteria with which to run models for habitat quality and threat level. The top 100 segments were identified, mapped, and included in a report to be used to guide restoration efforts.

In 2009: simplified suitability model and designed cartographic representations of results.