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SPU DWW Mainline Detention Polygons
SPU DWW Mainlines is a Group Layer containing all Lifecycles, Ownerships, and other variations of Drainage and Wastewater Mainlines. The Connected Mainlines are symbolized... -
Urban Watercourses
This layer displays the urban watercourses showing open stream channels and flow within culverts, drainage laterals, and drainage mainlines. The Washington State Department of... -
Creek Watersheds
This layer displays the urban creek watersheds. Creek watershed flow is in the contentious and intermittent natural surface water flow identified and recognized as a stream by...