College of Agriculture and Natural Resources
Center for Land Use Education and Research

Lower CT River Basin MapConnecticut Portion of Lower Long Island Sound Watershed

Note that the entire state of Connecticut is not part of the Long Island Sound Watershed. Connecticut is about 4970 square miles (3,181,240 acres) and the watershed area in Connecticut is about 4921 square miles (3,149,531 acres) - a difference of 49 square miles (31,708 acres) (shown in red on the map). The stats below are ONLY for the watershed, which is shown in yellow.

Visit the Interactive map to see and compare the maps. Visit the Statistics or Maps page to see the breakdown for the HUC12 basins.

Back to Summary Stats

Land Cover

  1985 2010 Change
  acres sq. miles % acres sq. miles %
acres sq. miles %
Developed 505819 790.3 16.1% 600701 938.6 19.1% 94882 148.3 3.0%
Turf & Grass 195695 305.8 6.2% 243285 380.1 7.7% 47590 74.4 1.5%
Other Grass 41427 64.7 1.3% 60732 94.9 1.9% 19305 30.2 0.6%
Ag. Field 269431 421.0 8.6% 229338 358.3 7.3% -40093 -62.6 -1.3%
Deciduous Forest 1563740 2443.3 49.6% 1459510 2280.5 46.3% -104230 -162.9 -3.3%
Coniferous Forest 289009 451.6 9.2% 278844 435.7 8.9% -10165 -15.9 -0.3%
Water 111010 173.5 3.5% 103569 161.8 3.3% -7441 -11.6 -0.2%
Non-forested Wetlands 12742 19.9 0.4% 13055 20.4 0.4% 313 0.5 0.0%
Forested Wetlands 115994 181.2 3.7% 110006 171.9 3.5% -5988 -9.4 -0.2%
Tidal Wetlands 13971 21.8 0.4% 14136 22.1 0.4% 166 0.3 0.0%
Barren 19444 30.4 0.6% 25408 39.7 0.8% 5964 9.3 0.2%
Utility ROW (Forest) 11250 17.6 0.4% 10918 17.1 0.3% -331 -0.5 0.0%

Change in Zone Land Cover, 1985-2010

   
Chart  

 

  Developed
  Turf & Grass
  Other Grass
  Agricultural Field
  Forest
  Water
  Wetland
  Barren
   

 

Riparian Zone Land Cover, 300 foot zone

View data tables for all years for the 300 foot buffer zone here: excel, pdf.
View data tables for all years for the 100 foot buffer zone here: excel, pdf.

  1985 2010 Change
  acres sq. miles % acres sq. mi % acres sq. miles %
Developed 121902 190.5 14.5% 141267 220.1 16.8% 19365 30.3 2.3%
Turf & Grass 43190 67.5 5.1% 53375 83.4 6.3% 10185 15.9 1.2%
Other Grass 10701 16.7 1.3% 16048 25.1 1.9% 5347 8.4 0.6%
Ag. Field 58994 92.4 7.0% 52328 81.8 6.2% -6666 -10.4 -0.8%
Deciduous Forest 416118 650.2 49.4% 395981 618.7 47.0% -20136 -31.5 -2.4%
Coniferous Forest 84667 132.3 10.1% 82647 129.1 9.8% -2020 -3.2 -0.2%
Water 26040 40.7 3.1% 21256 33.2 2.5% -4784 -7.5 -0.6%
Non-forested Wetlands 7086 11.1 0.8% 7327 11.4 0.9% 241 0.4 0.0%
Forested Wetlands 62141 97.1 7.4% 58858 92.0 7.0% -3283 -5.1 -0.4%
Tidal Wetlands 3037 4.7 0.4% 3150 4.9 0.4% 114 0.2 0.0%
Barren 4874 7.6 0.6% 6574 10.3 0.8% 1699 2.7 0.2%
Utility ROW (Forest) 2887 4.5 0.3% 2826 4.4 0.3% -61 -0.1 0.0%

Change in Riparian Zone Land Cover, 1985-2010

   
Chart  

 

  Developed
  Turf & Grass
  Other Grass
  Agricultural Field
  Forest
  Water
  Wetland
  Barren
   

 

Impervious Surface Estimate

Impervious Cover is not reported by state because Impervious Cover is averaged by watershed and watersheds cross state boundaries.