Snohomish County Public Works Surface Water ManagementAn energy dissipator is a storm water feature typically found at the end of a ditch or pipe. It is designed to dissipate the flow of water to prevent scouring and erosion of earth at the end of a drainage system and is typically made from a hard material such as concrete or stone. They are mapped to allow for inspection and maintenance as part of Snohomish County's National Pollutant Discharge Elimination System (NPDES) permit.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/23886f3380a344ceb5f13e1a0061d279_0engSnohomish County Open Data PortalPublicEnergy Dissipater [Washington (State)--Snohomish County]Web servicesWashington (State)--Snohomish CountyWashington (State)Last Modified: 2022-11-09