Skip to main content
U.S. flag

An official website of the United States government

This site will undergo scheduled maintenance on 2026-05-20 Wednesday from 3:30 PM to 4:30 PM EDT.
During this time, the site will be unavailable. We apologize for any inconvenience.

SPU DWW Drainage Basins

Published by City of Seattle ArcGIS Online | City of Seattle | Catalog Last Checked: May 18, 2026 at 04:10 PM | Dataset Last Updated: May 11, 2026
The polygons are intended for use by the City of Seattle as planning-level tool for a preliminary understanding of the drainage patterns in particular areas of the City. The layer is not complete and does not reflect any City determination about how specific locations should be characterized. Drainage Basins areas were delineated using topography, roads and utility infrastructure based on current GIS data, 200-foot scale maps, side sewer cards and engineering design documents. Data source is DWW.drainage_basin_plgn_pv. Labels are based on the attribute NAME.Refreshed weekly.

Resources

11 resources available

Find Related Datasets

Search by Tags

Click any tag below to search for similar datasets

data.gov

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?
Visit USA.gov