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Seattle Green Stormwater Infrastructure

Published by City of Seattle ArcGIS Online | City of Seattle | Metadata Last Checked: January 10, 2026 | Last Modified: 2026-01-05
This layer displays Citywide Green Stormwater Infrastructure Best Management Practices (City-wide GSI BMP) and Citywide Green Stormwater Infrastructure projects (City-wide GSI Project). Citywide GSI BMP is sourced from CARTO.GSI_BMP_PT_PV.  Labels are based on the attribute BMP.  BMP codes listed in the BEST MANAGED PRACTICE (GB_BMP_TEXT) field are defined as follows: Code Value Text Value BIO Bioretention, infiltrating, installed by others BIN Bioretention, infiltrating, installed by SPU BND Bioretention, non-infiltrating, with detention BSU Biofiltration swale with underdrain BSW Biofiltration swale without underdrain BUC Bioretention swale, non-infiltrating, with underdrain in CSO basin BUN Bioretention Swale, non-infiltrating, with underdrain in non-CSO basin CRG Cistern to rain garden <td style=

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