Washington State Department of Transportation (WSDOT), Environmental Services Office (ESO)This is a view of the ArtificialPath featureclass created with the following query: LifeCycleCurrentStatus= 'Active' AND (WSDOTownership in ('Yes', 'Unknown') OR WSDOTownership IS NULL) AND (SWLocationVerified IS NULL OR SWLocationVerified = 'No') This feature class contains WSDOT's stormwater artificial paths. An artificial path is used to represent flow through a dispersion area, roadside slope polygon, or stormwater pond polygon when there is no other conveyance feature from the inlet to outlet structure. It is also used for areas where stormwater flow is briefly dispersed to sheet flow from the end of a conveyance and then concentrated again by another downstream conveyance prior to discharge. These paths are important for maintaining connectivity of the stormwater system GIS model. The majority of the data collected so far are within the Phase I and Phase II 2009 NPDES Municipal Stormwater Permit Areas.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/b4c548c35a5d4e9f844e9d96a910799b_13engState of Washington Geospatial Open Data PortalPublicWSDOT - Stormwater Artificial Path - Office [Washington (State)]Web servicesWashington (State)Last Modified: 2026-01-06