Subregional Basin Lines
type: Dataset
description: See full Data Guide here. Subregional Drainage Basic Set: Connecticut Subregional Drainage Basins is 1:24,000-scale, polygon and line feature data that define subregional drainage basin areas in Connecticut. These medium size basins mostly range from 5 to 70 square miles in size and make up, in order of increasing size the larger regional, and major drainage basin areas. Connecticut Subregional Drainage Basins includes drainage areas for all Connecticut rivers, streams, brooks, lakes, reservoirs and ponds published on 1:24,000-scale 7.5 minute topographic quadrangle maps prepared by the USGS between 1969 and 1984. Data is compiled at 1:24,000 scale (1 inch = 2,000 feet). This information is not updated. Polygon and line features represent drainage basin areas and boundaries, respectively. Each basin area (polygon) feature is outlined by one or more major, regional, and subregional basin boundary (line) feature. These data include 374 subregional basin area (polygon) features and 1,346 subregional basin boundary (line) features. Subregional Basin area (polygon) attributes include major, regional and subregional basin number, and feature size in acres and square miles. The subregional basin number (SBAS_NO) uniquely identifies individual basins and is 4 characters in length. There are 335 unique subregional basin numbers. Examples include 6000, 4300, and 6002. The first digit (column 1) designates the major basin, the first two digits (columns 1-2) designate the regional basin, and the first 4 digits (columns 1-4) designate the subregional basin. Note, there are slightly more subregional basin polygon features (374) than unique subregional basin numbers (335) primarily due to a few stream confluences that split the same local basin into two polygon features. Subregional basin boundary (line) attributes include a drainage divide type attribute (DIVIDE) used to cartographically represent the hierarchical drainage basin system. This divide type attribute is used to assig…
issued: 2019-10-28
modified: 2019-10-28
spatial: Location
contact point: Organization
  fn: deepgis
keyword: amerigeo
keyword: amerigeoss
keyword: basin
keyword: basin-divide
keyword: ckan
keyword: ct
keyword: ctdeep
keyword: data
keyword: deep
keyword: drainage
keyword: drainage-area
keyword: drainage-basin
keyword: gazetteer
keyword: geo
keyword: geoss
keyword: hydrography
keyword: local
keyword: major
keyword: national
keyword: north-america
keyword: open
keyword: open-data
keyword: regional
keyword: set
keyword: subregional
keyword: united-states
keyword: watershed
theme: {geospatial}

GeoJSON
type: Distribution
issued: 2022-01-25T00:00:05.837524
modified: 2025-11-19T14:57:10.699546
access URL: https://ct-deep-gis-open-data-website-ctdeep.hub.arcgis.com/datasets/CTDEEP::subregional-basin-lines.geojson
media type: application/vnd.geo+json

KML
type: Distribution
format: KML
issued: 2022-01-25T00:00:05.837529
modified: 2025-11-19T14:57:10.700999
access URL: https://ct-deep-gis-open-data-website-ctdeep.hub.arcgis.com/datasets/CTDEEP::subregional-basin-lines.kml
media type: application/vnd.google-earth.kml+xml

Shapefile
type: Distribution
format: ZIP
issued: 2022-01-25T00:00:05.837531
modified: 2025-11-19T14:57:10.701689
access URL: https://ct-deep-gis-open-data-website-ctdeep.hub.arcgis.com/datasets/CTDEEP::subregional-basin-lines.zip
media type: application/zip

ArcGIS Hub Dataset
type: Distribution
format: HTML
issued: 2022-01-25T00:00:05.837513
modified: 2025-11-19T14:57:10.697930
access URL: https://ct-deep-gis-open-data-website-ctdeep.hub.arcgis.com/datasets/CTDEEP::subregional-basin-lines
media type: text/html

CSV
type: Distribution
format: CSV
issued: 2022-01-25T00:00:05.837526
modified: 2025-11-19T14:57:10.700308
access URL: https://ct-deep-gis-open-data-website-ctdeep.hub.arcgis.com/datasets/CTDEEP::subregional-basin-lines.csv
media type: text/csv

ArcGIS GeoService
type: Distribution
format: JSON
issued: 2022-01-25T00:00:05.837520
modified: 2025-11-19T14:57:10.698779
access URL: https://services1.arcgis.com/FjPcSmEFuDYlIdKC/arcgis/rest/services/Subregional_Drainage_Basin_Set/FeatureServer/0
media type: application/json

US Migrating
type: Agent