Hood Canal

Watershed Hydrology

The Hood Canal watershed (HUC 17110018) covers an area of approximately 938 square miles in western Washington state. The area is characterized by a moderate climate with significant rainfall throughout the year. The watershed contains several large rivers including the Skokomish, Hamma Hamma, and Duckabush, which provide important habitats for various fish and wildlife species. The snowpack in the watershed plays a critical role in the hydrology of the region, contributing to the surface water supply during the dry summer months. The Hood Canal itself is a fjord-like estuary that stretches over 60 miles and is home to a diverse array of marine life. Recent studies have shown that the Hood Canal watershed has been impacted by pollution from various sources, including agricultural runoff and septic systems. Efforts are underway to address these issues and improve the health of the watershed.


Surface Flows

Hood Canal Watershed

Snowpack Depths

Hood Canal Watershed

Dams & Reservoirs

Hood Canal Watershed

Groundwater Levels

Hood Canal Watershed

Hood Canal Rivers

Rivers of the Watershed