D.C. Office of the Chief Technology OfficerStructure Lines captured in 1999. Contract NCPC 93-02. This document describes the planimetric map production for the 350 tiles located in Washington DC and the surrounding states of MD and VA.ArcGIS DynamicMapLayerhttps://hub.arcgis.com/datasets/ce197a68f6de4f3fb6bba2aca2702a9e_19engOpen Data DCPublicStructure Lines 1999 [District of Columbia--Washington]Web servicesDistrict of Columbia--WashingtonDistrict of Columbia1999