-
Regional Drainage Basin Polygon
See full Data Guide here. Regional Drainage Basin Set: Connecticut Regional Drainage Basins is 1:24,000-scale, polygon and line feature data that define Regional drainage basin... -
Local Basin Lines
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.... -
Subregional Basin Polygon
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... -
Local Drainage Basin Direction
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.... -
Shellfish Bed Jurisdiction Lines
Shellfish Beds Managed Set: The Connecticut Department of Environmental Protection cooperated with the Department of Agriculture, Bureau of Aquaculture to publish the... -
Connecticut Poly
Connecticut State Line includes the line features of a layer named Connecticut. Connecticut is a 1:24,000-scale, polygon and line feature-based layer that depicts the geographic... -
Connected Sewer Service Areas
This data was created through the modification of an existing sewer service dataset from the CT Office of Policy and Management (OPM), in addition to sewer data from the... -
Eelgrass Beds Historic Points
Eelgrass Beds Historic Set: Historic Eelgrass Points is a 1:24,000-scale, point feature-based layer that depicts the locations of historic eelgrass beds (Zostera marina) in Long... -
Quaternary Geology
See full Data Guide here. Quaternary Geology Feature Set is 1:24,000-scale data that illustrates the geologic features formed in Connecticut during the Quaternary Period, which... -
Drainage Basin Lines
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.... -
305b Assessed River 2018
305b Assessed 2018 River Lake Estuary Set: Connecticut 305b Assessed Estuary 2018 is a 1:24,000-scale, polygon feature-based layer that includes estuaries that have been... -
305b Assessed Estuary 2016
305b Assessed 2016 River Lake Estuary Bed: Connecticut 305b Assessed River 2016 is a 1:24,000-scale, line feature-based layer that includes rivers that have been assessed to... -
CT Vicinity Town Lines
Connecticut and Vicinity Town Boundary data are intended for geographic display of state, county and town (municipal) boundaries at statewide and regional levels. Use it to map... -
Surface Water Quality Polygon
See full Data Guide here. Surface Water Quality Classifications Set: This dataset is a line and a polygon feature-based layer compiled at 1:24,000 scale that includes water... -
CT 305b Assessed Estuary 2022
305b Assessed River, Lake, Estuary 2022: Connecticut 305b Assessed River 2022 is a 1:24,000-scale, line feature-based layer that includes rivers that have been assessed to... -
Bathymetric Contours in Meters for Long Island Sound
The Long Island Sound Study developed these digital data from 1:100,000-scale National Oceanic & Atmospheric Administration (NOAA) and United States Geological Survey (USGS)... -
Tidal Wetlands 1970s
Tidal Wetlands 1970's represents the historic regulatory tidal wetland boundaries produced during the early 1970's by the State of Connecticut Department of Agriculture and... -
Environmental Justice Block Groups 2022
Environmental Justice Block Groups 2022 was created from Connecticut block group boundary data located in the Census Bureau's 2020 TIGER/Line Shapefiles. The poverty data used... -
Subregional Drainage Basin Direction
A standardized mapping of natural drainage basins in Connecticut was completed in 1981 by the Connecticut Department of Environmental Protection (DEP). This drainage basin... -
Long Island Sound Submerged Cable And Pipeline Areas
The Long Island Sound Submerged Cable and Pipeline Areas layer is a polygon feature-based layer that includes the location of submerged cable and/or pipeline areas in Long...
Official websites use .gov
A
.gov website belongs to an official government
organization in the United States.
Secure .gov websites use HTTPS
A
lock (
) or https:// means you’ve safely connected to
the .gov website. Share sensitive information only on official,
secure websites.