Office of the Chief Technology OfficerGrate: A single point capture for the feature at the visual center point. Grates are structures of parallel or crossed bars, used to cover steam vents or other ventilation features for buildings, and also include grates for DC Metro ventilation. They typically occur on sidewalks. Storm water inlets are not included.ArcGIS DynamicMapLayerhttps://hub.arcgis.com/datasets/dabde2b2dc88453ea569c180f7305baa_5engOpen Data DCPublicSidewalk Grates [District of Columbia--Washington]Web servicesDistrict of Columbia--WashingtonDistrict of ColumbiaLast Modified: 2024-09-26