ArcGIS Online for MarylandThis is a publicly available map image service with limited GIS attributes. A downloadable version of this data is now available through the MDOT GIS Open Data Portal: Download MDOT SHA Right-of-Way Polygons (Open Data Portal) The following related versions of this data are available here: MDOT SHA Right-of-Way (Secured) Line data Full attribute table Accessible to only MDOT employees and contractors upon request MDOT SHA Right-of-Way (Map Image Service) Read-only map service Line data Limited attributes (quality level) Accessible to public MDOT SHA Right-of-Way data is a composite layer of PSD field-collected survey sources, PSD in-house computations, traced PSD hardcopy materials, and historical Maryland Department of Planning (MDP) parcel boundaries. This data product was intended to replace MDOT SHA Planning Level Right-of-Way (Tax Map Legacy), which is an increasingly obsolete legacy product for MDOT SHA Right-of-Way information that in some areas remains the most comprehensive. For continuity, many MDP parcel boundaries found in MDOT SHA Planning Level Right-of-Way (Tax Map Legacy) have been incorporated into MDOT SHA Right-of-Way data with an "Estimated" quality level. Please see below for a description of the primary attribute. ----------------------------------------------------- The polygons in this layer are divided into 318 arbitrary grid zones across the State of Maryland. Updates to the parent ROW boundary line data set [MDOT SHA Right-of-Way (Secured)] are made by grid and reflected in this polygon layer. For more information or to report errors in this data, please contact MDOT SHA OIT Enterprise Information Services: Email: GIS@mdot.maryland.govArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/6b9156c1986640f1a87efacee03e20f5_32engMaryland iMapPublicMDOT SHA Right-Of-Way (Polygons) [Maryland]Web servicesMarylandLast Modified: 2025-12-22