Clallam County LID for Stormwater Discharge

AHBL provided civil engineering and land use planning services to produce a prioritization list and conceptual design solutions for five priority sites to reduce the impacts of stormwater discharging to the Strait of Juan de Fuca. The goal was to reduce stormwater runoff, reduce erosion, restore habitat for salmon and other wildlife, and open shellfish beds for recreation and commercial harvest by treating stormwater for pollutants and decreasing flashiness of stormwater discharge by implementing Low Impact Development (LID) and Best Management Practices (BMPs). Our prioritization process identified potential stormwater retrofit projects that will improve water quality to shellfish and salmon habitats as well as reduce known stormwater impacts to public and private property. This report documents the process of developing the prioritization list as well as the conceptual design for five selected sites.

Teaming Parnters

• Owner: Clallam County