EPSG:2234 — NAD83 / Connecticut (ftUS)

Projected · USA - Connecticut

Export Formats

OGC WKT

PROJCS[
    "NAD83 / Connecticut (ftUS)",
    GEOGCS[
        "NAD83",
        DATUM[
            "North_American_Datum_1983",
            SPHEROID["GRS 1980",6378137,298.257222101],
            TOWGS84[0,0,0,0,0,0,0]
        ],
        PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4269"]
    ],
    PROJECTION["Lambert_Conformal_Conic_2SP"],
    PARAMETER["latitude_of_origin",40.8333333333333],
    PARAMETER["central_meridian",-72.75],
    PARAMETER["standard_parallel_1",41.8666666666667],
    PARAMETER["standard_parallel_2",41.2],
    PARAMETER["false_easting",1000000],
    PARAMETER["false_northing",500000],
    UNIT["US survey foot",0.304800609601219],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH],
    AUTHORITY["EPSG","2234"]
]

WKT2

PROJCRS[
    "NAD83 / Connecticut (ftUS)",
    BASEGEOGCRS[
        "NAD83",
        DATUM[
            "North American Datum 1983",
            ELLIPSOID[
                "GRS 1980",
                6378137,
                298.257222101,
                LENGTHUNIT["metre",1,ID["EPSG",9001]],
                ID["EPSG",7019]
            ],
            ID["EPSG",6269]
        ],
        ID["EPSG",4269]
    ],
    CONVERSION[
        "SPCS83 Connecticut zone (US survey foot)",
        METHOD["Lambert Conic Conformal (2SP)",ID["EPSG",9802]],
        PARAMETER[
            "Latitude of false origin",
            40.8333333333336,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8821]
        ],
        PARAMETER[
            "Longitude of false origin",
            -72.7500000000003,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8822]
        ],
        PARAMETER[
            "Latitude of 1st standard parallel",
            41.866666666667,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8823]
        ],
        PARAMETER[
            "Latitude of 2nd standard parallel",
            41.2000000000003,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8824]
        ],
        PARAMETER[
            "Easting at false origin",
            1000000,
            LENGTHUNIT["US survey foot",0.304800609601219,ID["EPSG",9003]],
            ID["EPSG",8826]
        ],
        PARAMETER[
            "Northing at false origin",
            500000,
            LENGTHUNIT["US survey foot",0.304800609601219,ID["EPSG",9003]],
            ID["EPSG",8827]
        ],
        ID["EPSG",15316]
    ],
    CS[Cartesian,2,ID["EPSG",4497]],
    AXIS["Easting (X)",east],
    AXIS["Northing (Y)",north],
    LENGTHUNIT["US survey foot",0.304800609601219,ID["EPSG",9003]],
    ID["EPSG",2234]
]

PROJ.4

+proj=lcc +lat_0=40.8333333333333 +lon_0=-72.75 +lat_1=41.8666666666667 +lat_2=41.2 +x_0=304800.609601219 +y_0=152400.30480061 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=us-ft +no_defs +type=crs

Proj4js

How to add a projection to Proj4js? →

proj4.defs("EPSG:2234", "+proj=lcc +lat_0=40.8333333333333 +lon_0=-72.75 +lat_1=41.8666666666667 +lat_2=41.2 +x_0=304800.609601219 +y_0=152400.30480061 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=us-ft +no_defs +type=crs");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 2234,
  "name": "NAD83 / Connecticut (ftUS)",
  "kind": "projected",
  "area": "USA - Connecticut",
  "unit": "US survey foot",
  "bbox": [
    40.98,
    -73.73,
    42.05,
    -71.78
  ],
  "proj4": "+proj=lcc +lat_0=40.8333333333333 +lon_0=-72.75 +lat_1=41.8666666666667 +lat_2=41.2 +x_0=304800.609601219 +y_0=152400.30480061 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=us-ft +no_defs +type=crs"
}

PostGIS

How to add a projection to PostGIS? →

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (2234, 'EPSG', 2234, '+proj=lcc +lat_0=40.8333333333333 +lon_0=-72.75 +lat_1=41.8666666666667 +lat_2=41.2 +x_0=304800.609601219 +y_0=152400.30480061 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=us-ft +no_defs +type=crs', 'PROJCS["NAD83 / Connecticut (ftUS)",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",40.8333333333333],PARAMETER["central_meridian",-72.75],PARAMETER["standard_parallel_1",41.8666666666667],PARAMETER["standard_parallel_2",41.2],PARAMETER["false_easting",1000000],PARAMETER["false_northing",500000],UNIT["US survey foot",0.304800609601219],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","2234"]]');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+proj=lcc"
  "+lat_0=40.8333333333333"
  "+lon_0=-72.75"
  "+lat_1=41.8666666666667"
  "+lat_2=41.2"
  "+x_0=304800.609601219"
  "+y_0=152400.30480061"
  "+ellps=GRS80"
  "+towgs84=0,0,0,0,0,0,0"
  "+units=us-ft"
  "+no_defs"
  "+type=crs"
END

GeoServer

How to add a projection to GeoServer? →

2234=PROJCS["NAD83 / Connecticut (ftUS)",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",40.8333333333333],PARAMETER["central_meridian",-72.75],PARAMETER["standard_parallel_1",41.8666666666667],PARAMETER["standard_parallel_2",41.2],PARAMETER["false_easting",1000000],PARAMETER["false_northing",500000],UNIT["US survey foot",0.304800609601219],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","2234"]]

Related Coordinate Systems (18)

Available Transformations (157)

Transformations inherited from base CRS: EPSG:4269 (NAD83)

Transformation	Source → Target	Accuracy (m)
NAD83 to NAD83(HARN) (1)	4269 → 4152	0.05
NAD83 to NAD83(HARN) (2)	4269 → 4152	0.05
NAD83 to NAD83(HARN) (3)	4269 → 4152	0.05
NAD83 to NAD83(HARN) (4)	4269 → 4152	0.05
NAD83 to NAD83(HARN) (5)	4269 → 4152	0.05
NAD83 to NAD83(HARN) (6)	4269 → 4152	0.05
NAD83 to NAD83(HARN) (7)	4269 → 4152	0.05
NAD83 to NAD83(HARN) (8)	4269 → 4152	0.05
NAD83 to NAD83(HARN) (9)	4269 → 4152	0.05
NAD83 to NAD83(HARN) (10)	4269 → 4152	0.05

Other CRS using North American Datum 1983 (339)

Frequently Asked Questions

How do I add EPSG:2234 to GeoServer?

Add the following definition to your GeoServer configuration:

2234=PROJCS["NAD83 / Connecticut (ftUS)",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",40.8333333333333],PARAMETER["central_meridian",-72.75],PARAMETER["standard_parallel_1",41.8666666666667],PARAMETER["standard_parallel_2",41.2],PARAMETER["false_easting",1000000],PARAMETER["false_northing",500000],UNIT["US survey foot",0.304800609601219],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","2234"]]

Read the full GeoServer guide →

How do I add EPSG:2234 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (2234, 'EPSG', 2234, '+proj=lcc +lat_0=40.8333333333333 +lon_0=-72.75 +lat_1=41.8666666666667 +lat_2=41.2 +x_0=304800.609601219 +y_0=152400.30480061 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=us-ft +no_defs +type=crs', 'PROJCS["NAD83 / Connecticut (ftUS)",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",40.8333333333333],PARAMETER["central_meridian",-72.75],PARAMETER["standard_parallel_1",41.8666666666667],PARAMETER["standard_parallel_2",41.2],PARAMETER["false_easting",1000000],PARAMETER["false_northing",500000],UNIT["US survey foot",0.304800609601219],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","2234"]]');

Read the full PostGIS guide →

How do I add EPSG:2234 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+proj=lcc"
  "+lat_0=40.8333333333333"
  "+lon_0=-72.75"
  "+lat_1=41.8666666666667"
  "+lat_2=41.2"
  "+x_0=304800.609601219"
  "+y_0=152400.30480061"
  "+ellps=GRS80"
  "+towgs84=0,0,0,0,0,0,0"
  "+units=us-ft"
  "+no_defs"
  "+type=crs"
END

Read the full MapServer guide →

How do I use EPSG:2234 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:2234", "+proj=lcc +lat_0=40.8333333333333 +lon_0=-72.75 +lat_1=41.8666666666667 +lat_2=41.2 +x_0=304800.609601219 +y_0=152400.30480061 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=us-ft +no_defs +type=crs");

Read the full Proj4js guide →

Type

Projected

Unit

US survey foot

Geodetic CRS

NAD83

Datum

North American Datum 1983

Ellipsoid

GRS 1980

Prime Meridian

Greenwich

Area of Use

USA - Connecticut

United States (USA) - Connecticut - counties of Fairfield; Hartford; Litchfield; Middlesex; New Have…

Coordinate System

Cartesian 2D CS. Axes: easting, northing (X,Y). Orientations: east, north. UoM: ftUS.

Center Coordinates

998630.65 748374.52

Projected Bounds

944805.97 729403.211263459.16 554973.78

WGS84 Bounds

42.05 -73.73-71.78 40.98

Data Source

EPSG

Information Source

National Geodetic Survey http://www.ngs.noaa.gov/INFO/Policy/st_plane.html

Revision Date

2001-11-06

Scope

Engineering survey, topographic mapping.

Remarks

State law defines system in US survey feet. Federal definition is metric - see code 26956. For applications with an accuracy of better than 3 feet, replaced by NAD83(HARN) / SPCS.

EPSG

2234

ESRI Equivalent

ESRI:102656