City of Seattle ArcGIS OnlineDitches are small to moderate depressions that are created to channel water. Culverts are pipes that are open on both ends that conduct water under a road or railway. Displays data from the feature class DWW.ditch_culvert_ln_pv, SPU DWW Ditches and Culverts uses the following query: (DCH_LIFECYCLE_CODE IN ( 'C' , 'UNK' , 'T', 'TBC', 'U', 'PC') AND DCH_FEATYPE_CODE IN( 'DCH' , 'CUL' ,'PHM'). SPU DWW Proposed Ditches and Culverts uses the following query: DCH_LIFECYCLE_CODE = 'PRO' And DCH_FEATYPE_CODE IN ('DCH', 'CUL', 'PHM'). SPU DWW Aba Rem Ditches and Culverts has the following query: DCH_LIFECYCLE_CODE IN ('A', 'R', 'AT'). This layer does not display when zoomed out beyond 1:7,000. Labels do not display when zoomed out beyond 1:4800. Label is based on the attribute DCH_OWNER_CODE. Maintained by SPU GIS DWW Data Maintenance staff. Refreshed weekly.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/c5ab350a233f4f6ab62912227b08345d_2engSeattle GeoDataPublicSPU DWW Proposed Ditches and Culverts [Washington (State)--Seattle]Web servicesWashington (State)--SeattleWashington (State)Last Modified: 2026-01-06