Description

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Breaklines. The dataset contains breakline features derived photogrammetrically to support 2’ contours. Masspoints and breaklines were compiled from Spring 2008 aerial photography using softcopy photogrammetric techniques. Breaklines typically occur at significant terrain breaks including street centerlines, hydrography, road edges, rail centerlines, and walls. Masspoints and breaklines were compiled to support generation of a TIN and the subsequent processing of 2’ contours. All DC GIS data is stored and exported in Maryland State Plane coordinates NAD 83 meters for horizontal locations. METADATA CONTENT IS IN PROCESS OF VALIDATION AND SUBJECT TO CHANGE.

Dataset Attributes

  • OBJECTID
    Number
  • GIS_ID
    Text
  • FEATURECODE
    Number
    {"value"=>"7000", "count"=>140679, "code"=>7000} ()
  • DESCRIPTION
    Text
    {"value"=>"Ridgeline", "count"=>140679, "code"=>"7000"} ()
  • CAPTUREYEAR
    Date
    1212105600000 to 1212105600000
  • CAPTUREACTION
    Text
    {"value"=>"ADD - Feature is New", "count"=>140679, "code"=>"A"} ()
  • Shape
    Number
  • SHAPE.LEN
    Number

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