Hydrography Data Download

Hydro by 4th level HU (subbasin)

These layers are organized by 4th level HU and contain the water body, water course, water shoreline, and water point features of the each listed subbasin. Data layers are in ESRI export format and compressed into a zip file.

Hydrography Metadata: Water Bodies · Water Courses · Water Shorelines · Water Points

Subbasins with available hydrography data are represented on this map.

NOTE: Subbasins in the Puget Sound area and coastal Washington may contain data outside of the 4th level HU boundaries. This is due to the fact that the 4th level HU boundaries do not exactly match the coastline. The HU boundaries are currently being reviewed and updated prior to submission for national certification. This maintenance activity will create coincidence between the HU boundaries and the coastline and this will subsequently be reflected in downloads provided here.

Click on the links below to download hydro.