{
  "@type": "dcat:Dataset",
  "accessLevel": "public",
  "contactPoint": {
    "@type": "vcard:Contact",
    "fn": "CTDOT_OpenData",
    "hasEmail": "mailto:dot.enterprisegis@ct.gov"
  },
  "description": "<p><span style=\"font-family:&quot;Arial&quot;,sans-serif\">This service represents CTDOT’s Stormwater Drainage Network.&nbsp; The data is collected from a collection of resources including completed construction plans, right-of-way plans, permits &amp; field reconnaissance.&nbsp; Not all drainage features depicted on the map accurately reflect the condition of the drainage network that is currently built.&nbsp; Data is updated, modified and added daily by CTDOT to both grow the inventory of drainage structures statewide and to improve accuracy.&nbsp; Drainage data is collected for continued compliance of the CTDOT MS4 Permit and for CTDOT’s Asset Management Purposes.</span></p><p><span style=\"font-family:&quot;Arial&quot;,sans-serif\">Please refer to the CTDOT Maintenance Guide for definitions of all Drainage Features:</span></p><p><a href=\"https://portal.ct.gov/-/media/dot/policy/ms4/ctdot-ms4-gis-database-maintenance-guide-jan-2021.pdf?rev=d72d7bd93f054f37aed0d09d894040f0&amp;hash=9879B29442778C5F3EF97DF145874B0A\"><span style=\"font-family:&quot;Arial&quot;,sans-serif;mso-fareast-font-family:Aptos\">ctdot-ms4-gis-database-maintenance-guide-jan-2021.pdf</span></a></p>",
  "distribution": [
    {
      "@type": "dcat:Distribution",
      "downloadURL": "https://geodata.ct.gov/api/download/v1/items/f041d1a6e36643208d67f2452de558a9/csv?layers=1",
      "mediaType": "text/csv",
      "title": "CSV"
    },
    {
      "@type": "dcat:Distribution",
      "downloadURL": "https://geodata.ct.gov/api/download/v1/items/f041d1a6e36643208d67f2452de558a9/geojson?layers=1",
      "mediaType": "application/vnd.geo+json",
      "title": "GeoJSON"
    },
    {
      "@type": "dcat:Distribution",
      "downloadURL": "https://geodata.ct.gov/api/download/v1/items/f041d1a6e36643208d67f2452de558a9/kml?layers=1",
      "mediaType": "application/vnd.google-earth.kml+xml",
      "title": "KML"
    },
    {
      "@type": "dcat:Distribution",
      "downloadURL": "https://geodata.ct.gov/api/download/v1/items/f041d1a6e36643208d67f2452de558a9/shapefile?layers=1",
      "mediaType": "application/zip",
      "title": "Shapefile"
    },
    {
      "@type": "dcat:Distribution",
      "downloadURL": "https://geodata.ct.gov/datasets/CTDOT::closed-conveyances-1",
      "mediaType": "text/html",
      "title": "ArcGIS Hub Dataset"
    },
    {
      "@type": "dcat:Distribution",
      "downloadURL": "https://services1.arcgis.com/FCaUeJ5SOVtImake/arcgis/rest/services/CTDOT_Drainage_Network/FeatureServer/1",
      "mediaType": "application/json",
      "title": "ArcGIS GeoService"
    }
  ],
  "identifier": "https://www.arcgis.com/home/item.html?id=f041d1a6e36643208d67f2452de558a9&sublayer=1",
  "issued": "2026-07-14",
  "keyword": [
    "blind ties",
    "bmps",
    "catchment areas",
    "closed conveyances",
    "connecticut",
    "ctdot",
    "culverts",
    "drainage",
    "drainage network",
    "end walls",
    "headwalls",
    "inlets",
    "interconnections",
    "manholes",
    "open conveyances"
  ],
  "landingPage": "https://geodata.ct.gov/datasets/CTDOT::closed-conveyances-1",
  "modified": "2026-09-23",
  "publisher": {
    "@type": "org:Organization",
    "name": "Connecticut Department of Transportation"
  },
  "spatial": "-73.6755,40.9950,-71.7838,42.0484",
  "theme": [
    "geospatial"
  ],
  "title": "Closed Conveyances"
}