ArcGIS Online for MarylandEsri ArcGIS Online (AGOL) Hosted Feature Layer for accessing the MDOT SHA Roadway Administrative Classifications (State Classifications) data product. MDOT SHA Roadway Administrative Classifications (State Classifications) data consists of linear geometric features which specifically show State-maintained roadways included in the State Primary & State Secondary systems throughout the State of Maryland. Roadway Administrative Classifications data is primarily used for general planning & funding purposes by showcasing the State Primary vs. State Secondary highway systems. The Maryland Department of Transportation State Highway Administration (MDOT SHA) currently reports this data only on the inventory direction (generally North or East) side of the roadway. Roadway Administrative Classification is not a complete representation of all roadway geometry. MDOT SHA Roadway Administrative Classifications data is maintained & updated by the MDOT SHA Office of Planning & Preliminary Engineering (OPPE) Data Services Division (DSD). Roadway Administrative Classifications data is used by various business units throughout MDOT, as well as many other Federal, State and local government agencies. Roadway Administrative Classification data is key to understanding which State-maintained roadways are included in the State Primary & State Secondary systems throughout Maryland. MDOT SHA Roadway Administrative Classifications data is updated & published on an annual basis for the prior year. This data is for the year 2023 For more information related to the data, contact MDOT SHA OPPE Data Services Division (DSD): Email: DSD@mdot.maryland.gov For more information, contact MDOT SHA OIT Enterprise Information Services: Email: GIS@mdot.maryland.govArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/8a6be5507a1e4bfd88cc08f4bd7d9623_0engMaryland iMapPublicMDOT SHA Roadway Administrative Classifications [Maryland]Web servicesMarylandLast Modified: 2025-07-17