D.C. Office of the Chief Technology OfficerBreaklines (2008). 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.ArcGIS DynamicMapLayerhttps://hub.arcgis.com/datasets/683e671a380f45f29d7634c216c181f2_0engOpen Data DCPublicTopography Breaklines [District of Columbia--Washington]Web servicesDistrict of Columbia--WashingtonDistrict of ColumbiaLast Modified: 2024-09-20