Washington State Department of EcologyThe data contained in this dataset is a synthesis of existing information on levees in the State of Washington. The shapefiles displayed attempt to depict levee centerlines as accurately as possible. Primary data sources include the U.S. Army Corps of Engineers and the Federal Emergency Management Agency, In addition to these sources, inputs from local levee managers were used to augment the aforementioned sources.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/39f7eb9da6d946a9bf8ca8a459051ff6_2engState of Washington Geospatial Open Data PortalPublicLevee Inventory [Washington (State)]Web servicesWashington (State)Last Modified: 2025-09-23