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snippet: Drainage basins are comprised of a set of polygon and line features that together describe different types of drainage basins and drainage basin divides.
summary: Drainage basins are comprised of a set of polygon and line features that together describe different types of drainage basins and drainage basin divides.
extent: [[-73.7604064149002,40.9361817907633],[-71.4657127856059,42.6039522536404]]
accessInformation: CT DEEP
thumbnail: thumbnail/thumbnail.png
typeKeywords: ["Data","Service","Map Service","ArcGIS Server"]
description: A standardized mapping of natural drainage basins in Connecticut was completed in 1981 by the Connecticut Department of Environmental Protection (DEP). This drainage basin system divided Connecticut into 8 major basins, 45 regional basins, 337 subregional basins, 2,898 local basins, and 7,067 small drainage basin areas. The statewide mapping of natural drainage basins established a hierarchical system of basins based on drainage area size with large major basins subdivided into regional basins, regional basins subdivided into subregional basins, subregional basins subdivided into local basins, and local basins subdivided into smaller and more numerous drainage basin areas. It includes watersheds for Connecticut rivers, streams, brooks, lakes, reservoirs and ponds included on 1:24,000-scale 7.5 minute topographic quadrangle maps published by the U.S. Geological Survey (USGS) between 1969 and 1984. These basin units include smaller watersheds that drain into many of the small streams and ponds in Connecticut. These basin areas are the building blocks for the larger local, subregional, regional and major drainage basins defined by DEP. Connecticut Regional Drainage Basin includes 43 drainage basin areas, the majority of which range from 40 to 400 square miles in size and make up the larger major drainage basin areas. The regional basin number (RBAS_NO) uniquely identifies individual basins and is 2 characters in length. There are 44 unique regional basin numbers. Examples include 43 for the Farmington River Regional Basin, 60 for the Housatonic River Main Stem Regional Basin, and 61 for the Blackberry River Regional Basin. The first digit (column 1) designates the major basin and the first two digits (columns 1-2) designate the regional basin. Note, there are slightly more regional basin areas delineated (85) than unique regional basin numbers (44) due to coastal regional basins defined by series of areas located along the Connecticut shoreline.
licenseInfo: The data is suitable for use at appropriate scale, and is not intended for maps printed at scales greater or more detailed than 1:24,000 scale (1 inch = 2,000 feet).
catalogPath:
title: Regional Basins
type: Map Service
url:
tags: ["Regional Drainage Basins","Drainage Basins","Connecticut"]
culture: en-US
name: Regional_Basins
guid: E48B3316-4717-470E-896F-789F14C5E8FF
spatialReference: WGS_1984_Web_Mercator_Auxiliary_Sphere