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Building Footprints
District of Columbia —
Building structures include parking garages, ruins, monuments, and buildings under construction along with residential, commercial, industrial, apartment, townhouses,... -
Airport Runway and Taxiway
District of Columbia —
Taxiway, Apron: Delineate footprint of the following features. A taxiway connects aircraft to other areas and facilities of an airport. The apron is an area of an... -
Swimming Pools 2021
District of Columbia —
The perimeter of public and private swimming pools are captured, for both above-ground and in-ground pools. No other features can make a side for this feature. Pools... -
Sidewalks 2021
District of Columbia —
All public walkways are captured. Sidewalks do not overlap other feature classes unless they are hidden under a bridge or overpass. Cement pads around public swimming... -
Railroads
District of Columbia —
Centerlines of railroads or Metrorail are captured. The line is at the midpoint between each rail line. Hidden features due to tunnels, overpasses, or bridges are... -
Roads 2021
District of Columbia —
Road edges are defined as the edge of the improved surface including the improved shoulder but do not include the unimproved shoulder, only the travel part of the... -
Curbs 2021
District of Columbia —
Curb: The edge of roads, alleys, ramps or parking lots, other than those for which polygons can be formed. Curbs are rims, usually made of concrete, along a roadway,... -
Hydrography Lines 2021
District of Columbia —
This layer contains hydrography such as streams, rivers, and other linear hydrography features. Hidden hydrography, inferred drainage connectors, or culverts connect... -
Roads
District of Columbia —
Road edges are defined as the edge of the improved surface including the improved shoulder but do not include the unimproved shoulder, only the travel part of the... -
Obstructed Areas
District of Columbia —
Obscured Areas are areas in the compilation imagery that due to shadows, dense vegetation, heavy tree cover, building lean, etc., that completely block out all image... -
Waterbodies 2021
District of Columbia —
Water is a polygon feature class consisting of the following features and capture rules:Lakes, Reservoirs: Delineates the shoreline of all standing bodies of water... -
Sidewalk Grates 2021
District of Columbia —
Grate: 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... -
Building Footprints 2021
District of Columbia —
Building structures include parking garages, ruins, monuments, and buildings under construction along with residential, commercial, industrial, apartment, townhouses,... -
Curbs
District of Columbia —
Curb: The edge of roads, alleys, ramps or parking lots, other than those for which polygons can be formed. Curbs are rims, usually made of concrete, along a roadway,... -
Geodetic Control Points
District of Columbia —
Control points are captured by land surveyors to create control for orthophotography. These points are captured with survey-grade equipment ensuring the highest... -
Airport Runway and Taxiway 2021
District of Columbia —
Taxiway, Apron: Delineate footprint of the following features. A taxiway connects aircraft to other areas and facilities of an airport. The apron is an area of an... -
Aerial Photography (Orthophoto) - 2023
District of Columbia —
2023 Orthophoto - 3 inch resolution: This document describes the processes used to create the orthoimagery data produced for the District of Columbia from 2023 digital... -
Bridge and Tunnel Entrances
District of Columbia —
Bridges: All bridges are digitized as polygons. Bridges carry roads or railroads over water. Outside edges of all bridges delineated. Also bridge deck locations or... -
Traffic Barriers
District of Columbia —
Traffic Barrier. The dataset contains polylines representing planimetric traffic barriers, created as part of the DC Geographic Information System (DC GIS) for the... -
Geodetic Control Points 2021
District of Columbia —
Control points are captured by land surveyors to create control for orthophotography. These points are captured with survey-grade equipment ensuring the highest...