{"@type": "dcat:Dataset", "accessLevel": "public", "bureauCode": ["021:15"], "contactPoint": {"@type": "vcard:Contact", "fn": "FHWA-Data Team", "hasEmail": "mailto:no-reply@data.transportation.gov"}, "dataQuality": true, "description": "This summary tables provides annual counts of tunnels on and off the National Highway System (NHS) by States and territories beginning in 2018.", "distribution": [{"@type": "dcat:Distribution", "describedBy": "https://data.transportation.gov/api/views/ka9m-ar5q/columns.json", "describedByType": "application/json", "downloadURL": "https://data.transportation.gov/api/views/ka9m-ar5q/rows.json?accessType=DOWNLOAD", "mediaType": "application/json"}, {"@type": "dcat:Distribution", "describedBy": "https://data.transportation.gov/api/views/ka9m-ar5q/columns.rdf", "describedByType": "application/rdf+xml", "downloadURL": "https://data.transportation.gov/api/views/ka9m-ar5q/rows.rdf?accessType=DOWNLOAD", "mediaType": "application/rdf+xml"}, {"@type": "dcat:Distribution", "describedBy": "https://data.transportation.gov/api/views/ka9m-ar5q/columns.xml", "describedByType": "application/xml", "downloadURL": "https://data.transportation.gov/api/views/ka9m-ar5q/rows.xml?accessType=DOWNLOAD", "mediaType": "application/xml"}, {"@type": "dcat:Distribution", "downloadURL": "https://data.transportation.gov/api/views/ka9m-ar5q/rows.csv?accessType=DOWNLOAD", "mediaType": "text/csv"}], "identifier": "https://data.transportation.gov/api/views/ka9m-ar5q", "issued": "2026-05-15", "keyword": ["nhs", "nti", "tunnels"], "landingPage": "https://www.fhwa.dot.gov/bridge/inspection/tunnel/inventory.cfm", "language": ["en-US"], "license": "https://www.usa.gov/government-works", "modified": "2026-05-15", "programCode": ["021:009"], "publisher": {"@type": "org:Organization", "name": "Federal Highway Administration"}, "temporal": "2018/2025", "theme": ["Roadways and Bridges"], "title": "Tunnels by NHS and State"}