New Jersey Department of TransportationThe New Jersey Department of Transportation (NJDOT) 2023 Straight Line Diagrams (SLDs) are a way to view roadways in a line format. The SLD network presents approximately 12,528 miles of State (Interstate, US and NJ numbered roads), National Highway System (NHS), Surface Transportation Program (STP) and all County routes.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/e64c45fa1ef14ef2b97b517c20f15878_1engNew Jersey Geographic Information Network (NJGIN) Open Data PortalPublicMajor Routes [New Jersey]Web servicesNew JerseyLast Modified: 2024-12-05