Local Drainage Basin Direction
type: Dataset
description: See full Data Guide here. Drainage Basin Set: Connecticut Drainage Basins is 1:24,000-scale, polygon and line feature data that define natural drainage areas in Connecticut. These are small basin areas that average approximately 1 square mile in size and make up, in order of increasing size, the larger local, subregional, regional, and major drainage basin areas. Connecticut 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, subregional, local, impoundment, or river reach boundary (line) feature. These data include 7,076 basin area (polygon) features and 20,945 basin boundary (line) features. Basin area (polygon) attributes include major, regional, subregional, local, (full) basin number, and feature size in acres and square miles. The full basin number (BASIN_NO) uniquely identifies individual basins and is up to 13 characters in length. There are 7,031 unique basin numbers. Examples include 6000-00-1+*, 4300-00-1+L1, and 6002-00-2-R1. The first digit (column 1) designates the major basin, the first two digits (columns 1-2) designate the regional basin, the first 4 digits (columns 1-4) designate the subregional basin, and the first seven digits (columns 1-7) designate the local basin. Note, there are slightly more basin polygon features (7,076) than unique basin numbers (7,031) primarily because a few water supply watershed boundaries split a basin into two polygon features at the location of a small dam or point of diversion along a stream. Basin boundary (line) attributes include a drainage divide type attribute (DIVIDE) used to cartographica…
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
issued: 2019-10-28
modified: 2019-10-28
theme: {geospatial}
contact point: Organization
  fn: deepgis
spatial: Location

US Migrating
type: Agent

ArcGIS Hub Dataset
type: Distribution
media type: text/html
format: HTML
access URL: https://ct-deep-gis-open-data-website-ctdeep.hub.arcgis.com/maps/CTDEEP::local-drainage-basin-direction
issued: 2022-04-28T02:47:56.020470
modified: 2025-11-20T02:07:23.244594

ArcGIS GeoService
type: Distribution
media type: application/json
format: JSON
access URL: https://services1.arcgis.com/FjPcSmEFuDYlIdKC/arcgis/rest/services/Local_Drainage_Basin_Set/FeatureServer/2
issued: 2022-04-28T02:47:56.020477
modified: 2025-11-20T02:07:23.245011

GeoJSON
type: Distribution
media type: application/vnd.geo+json
access URL: https://ct-deep-gis-open-data-website-ctdeep.hub.arcgis.com/datasets/CTDEEP::local-drainage-basin-direction.geojson
issued: 2022-04-28T02:47:56.020480
modified: 2025-11-20T02:07:23.245414

CSV
type: Distribution
media type: text/csv
format: CSV
access URL: https://ct-deep-gis-open-data-website-ctdeep.hub.arcgis.com/datasets/CTDEEP::local-drainage-basin-direction.csv
issued: 2022-04-28T02:47:56.020483
modified: 2025-11-20T02:07:23.245795

KML
type: Distribution
media type: application/vnd.google-earth.kml+xml
format: KML
access URL: https://ct-deep-gis-open-data-website-ctdeep.hub.arcgis.com/datasets/CTDEEP::local-drainage-basin-direction.kml
issued: 2022-04-28T02:47:56.020486
modified: 2025-11-20T02:07:23.246179

Shapefile
type: Distribution
media type: application/zip
format: ZIP
access URL: https://ct-deep-gis-open-data-website-ctdeep.hub.arcgis.com/datasets/CTDEEP::local-drainage-basin-direction.zip
issued: 2022-04-28T02:47:56.020488
modified: 2025-11-20T02:07:23.246554