EPSG:8723

NAD83 / Connecticut (ftUS) + NAVD88 height (ftUS)

Attributes

Geodetic CRS: NAD83 / Connecticut (ftUS) + NAVD88 height (ftUS)

Data source: EPSG

Information source: IOGP

Revision date: 2018-05-13

Center coordinates
998630.5 748374.62

Projected bounds:
729403.22 553439.57
1267835.2 944836.74

WGS84 bounds:
-73.73 40.98
-71.78 42.05

United States (USA) - Connecticut - counties of Fairfield; Hartford; Litchfield; Middlesex; New Haven; New London; Tolland; Windham.
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Definition: OGC Well Known Text

COMPD_CS["NAD83 / Connecticut (ftUS) + NAVD88 height (ftUS)",
    PROJCS["NAD83 / Connecticut (ftUS)",
        GEOGCS["NAD83",
            DATUM["North_American_Datum_1983",
                SPHEROID["GRS 1980",6378137,298.257222101,
                    AUTHORITY["EPSG","7019"]],
                AUTHORITY["EPSG","6269"]],
            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,
            AUTHORITY["EPSG","9003"]],
        AXIS["Easting",EAST],
        AXIS["Northing",NORTH],
        AUTHORITY["EPSG","2234"]],
    VERT_CS["NAVD88 height (ftUS)",
        VERT_DATUM["North American Vertical Datum 1988",2005,
            AUTHORITY["EPSG","5103"]],
        UNIT["US survey foot",0.304800609601219,
            AUTHORITY["EPSG","9003"]],
        AXIS["Gravity-related height",UP],
        AUTHORITY["EPSG","6360"]],
    AUTHORITY["EPSG","8723"]]

Definition: OGC Well Known Text 2 (2019)

COMPOUNDCRS["NAD83 / Connecticut (ftUS) + NAVD88 height (ftUS)",
    PROJCRS["NAD83 / Connecticut (ftUS)",
        BASEGEOGCRS["NAD83",
            DATUM["North American Datum 1983",
                ELLIPSOID["GRS 1980",6378137,298.257222101,
                    LENGTHUNIT["metre",1]]],
            PRIMEM["Greenwich",0,
                ANGLEUNIT["degree",0.0174532925199433]],
            ID["EPSG",4269]],
        CONVERSION["SPCS83 Connecticut zone (US Survey feet)",
            METHOD["Lambert Conic Conformal (2SP)",
                ID["EPSG",9802]],
            PARAMETER["Latitude of false origin",40.8333333333333,
                ANGLEUNIT["degree",0.0174532925199433],
                ID["EPSG",8821]],
            PARAMETER["Longitude of false origin",-72.75,
                ANGLEUNIT["degree",0.0174532925199433],
                ID["EPSG",8822]],
            PARAMETER["Latitude of 1st standard parallel",41.8666666666667,
                ANGLEUNIT["degree",0.0174532925199433],
                ID["EPSG",8823]],
            PARAMETER["Latitude of 2nd standard parallel",41.2,
                ANGLEUNIT["degree",0.0174532925199433],
                ID["EPSG",8824]],
            PARAMETER["Easting at false origin",1000000,
                LENGTHUNIT["US survey foot",0.304800609601219],
                ID["EPSG",8826]],
            PARAMETER["Northing at false origin",500000,
                LENGTHUNIT["US survey foot",0.304800609601219],
                ID["EPSG",8827]]],
        CS[Cartesian,2],
            AXIS["easting (X)",east,
                ORDER[1],
                LENGTHUNIT["US survey foot",0.304800609601219]],
            AXIS["northing (Y)",north,
                ORDER[2],
                LENGTHUNIT["US survey foot",0.304800609601219]]],
    VERTCRS["NAVD88 height (ftUS)",
        VDATUM["North American Vertical Datum 1988"],
        CS[vertical,1],
            AXIS["gravity-related height (H)",up,
                LENGTHUNIT["US survey foot",0.304800609601219]]],
    USAGE[
        SCOPE["Engineering survey, topographic mapping."],
        AREA["United States (USA) - Connecticut - counties of Fairfield; Hartford; Litchfield; Middlesex; New Haven; New London; Tolland; Windham."],
        BBOX[40.98,-73.73,42.05,-71.78]],
    ID["EPSG",8723]]

Definition: ESRI Well Known Text

PROJCS["NAD_1983_StatePlane_Connecticut_FIPS_0600_Feet",
    GEOGCS["GCS_North_American_1983",
        DATUM["D_North_American_1983",
            SPHEROID["GRS_1980",6378137.0,298.257222101]],
        PRIMEM["Greenwich",0.0],
        UNIT["Degree",0.0174532925199433]],
    PROJECTION["Lambert_Conformal_Conic"],
    PARAMETER["False_Easting",1000000.0],
    PARAMETER["False_Northing",500000.0],
    PARAMETER["Central_Meridian",-72.75],
    PARAMETER["Standard_Parallel_1",41.8666666666667],
    PARAMETER["Standard_Parallel_2",41.2],
    PARAMETER["Latitude_Of_Origin",40.8333333333333],
    UNIT["US survey foot",0.304800609601219]],
VERTCS["NAVD88_height_(ftUS)",
    VDATUM["North_American_Vertical_Datum_1988"],
    PARAMETER["Vertical_Shift",0.0],
    PARAMETER["Direction",1.0],
    UNIT["US survey foot",0.304800609601219]]

Definition: 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 +datum=NAD83 +units=us-ft +vunits=us-ft +no_defs +type=crs

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:8723","+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 +datum=NAD83 +units=us-ft +vunits=us-ft +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.5/projjson.schema.json",
    "type": "CompoundCRS",
    "name": "NAD83 / Connecticut (ftUS) + NAVD88 height (ftUS)",
    "components": [
        {
            "type": "ProjectedCRS",
            "name": "NAD83 / Connecticut (ftUS)",
            "base_crs": {
                "name": "NAD83",
                "datum": {
                    "type": "GeodeticReferenceFrame",
                    "name": "North American Datum 1983",
                    "ellipsoid": {
                        "name": "GRS 1980",
                        "semi_major_axis": 6378137,
                        "inverse_flattening": 298.257222101
                    }
                },
                "coordinate_system": {
                    "subtype": "ellipsoidal",
                    "axis": [
                        {
                            "name": "Geodetic latitude",
                            "abbreviation": "Lat",
                            "direction": "north",
                            "unit": "degree"
                        },
                        {
                            "name": "Geodetic longitude",
                            "abbreviation": "Lon",
                            "direction": "east",
                            "unit": "degree"
                        }
                    ]
                },
                "id": {
                    "authority": "EPSG",
                    "code": 4269
                }
            },
            "conversion": {
                "name": "SPCS83 Connecticut zone (US Survey feet)",
                "method": {
                    "name": "Lambert Conic Conformal (2SP)",
                    "id": {
                        "authority": "EPSG",
                        "code": 9802
                    }
                },
                "parameters": [
                    {
                        "name": "Latitude of false origin",
                        "value": 40.8333333333333,
                        "unit": "degree",
                        "id": {
                            "authority": "EPSG",
                            "code": 8821
                        }
                    },
                    {
                        "name": "Longitude of false origin",
                        "value": -72.75,
                        "unit": "degree",
                        "id": {
                            "authority": "EPSG",
                            "code": 8822
                        }
                    },
                    {
                        "name": "Latitude of 1st standard parallel",
                        "value": 41.8666666666667,
                        "unit": "degree",
                        "id": {
                            "authority": "EPSG",
                            "code": 8823
                        }
                    },
                    {
                        "name": "Latitude of 2nd standard parallel",
                        "value": 41.2,
                        "unit": "degree",
                        "id": {
                            "authority": "EPSG",
                            "code": 8824
                        }
                    },
                    {
                        "name": "Easting at false origin",
                        "value": 1000000,
                        "unit": {
                            "type": "LinearUnit",
                            "name": "US survey foot",
                            "conversion_factor": 0.304800609601219
                        },
                        "id": {
                            "authority": "EPSG",
                            "code": 8826
                        }
                    },
                    {
                        "name": "Northing at false origin",
                        "value": 500000,
                        "unit": {
                            "type": "LinearUnit",
                            "name": "US survey foot",
                            "conversion_factor": 0.304800609601219
                        },
                        "id": {
                            "authority": "EPSG",
                            "code": 8827
                        }
                    }
                ]
            },
            "coordinate_system": {
                "subtype": "Cartesian",
                "axis": [
                    {
                        "name": "Easting",
                        "abbreviation": "X",
                        "direction": "east",
                        "unit": {
                            "type": "LinearUnit",
                            "name": "US survey foot",
                            "conversion_factor": 0.304800609601219
                        }
                    },
                    {
                        "name": "Northing",
                        "abbreviation": "Y",
                        "direction": "north",
                        "unit": {
                            "type": "LinearUnit",
                            "name": "US survey foot",
                            "conversion_factor": 0.304800609601219
                        }
                    }
                ]
            }
        },
        {
            "type": "VerticalCRS",
            "name": "NAVD88 height (ftUS)",
            "datum": {
                "type": "VerticalReferenceFrame",
                "name": "North American Vertical Datum 1988"
            },
            "coordinate_system": {
                "subtype": "vertical",
                "axis": [
                    {
                        "name": "Gravity-related height",
                        "abbreviation": "H",
                        "direction": "up",
                        "unit": {
                            "type": "LinearUnit",
                            "name": "US survey foot",
                            "conversion_factor": 0.304800609601219
                        }
                    }
                ]
            }
        }
    ],
    "scope": "Engineering survey, topographic mapping.",
    "area": "United States (USA) - Connecticut - counties of Fairfield; Hartford; Litchfield; Middlesex; New Haven; New London; Tolland; Windham.",
    "bbox": {
        "south_latitude": 40.98,
        "west_longitude": -73.73,
        "north_latitude": 42.05,
        "east_longitude": -71.78
    },
    "id": {
        "authority": "EPSG",
        "code": 8723
    }
}

Definition: GeoServer

8723=COMPD_CS["NAD83 / Connecticut (ftUS) + NAVD88 height (ftUS)",PROJCS["NAD83 / Connecticut (ftUS)",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6269"]],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,AUTHORITY["EPSG","9003"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","2234"]],VERT_CS["NAVD88 height (ftUS)",VERT_DATUM["North American Vertical Datum 1988",2005,AUTHORITY["EPSG","5103"]],UNIT["US survey foot",0.304800609601219,AUTHORITY["EPSG","9003"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","6360"]],AUTHORITY["EPSG","8723"]]

Definition: MapServer - MAPfile

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"
	"datum=NAD83"
	"units=us-ft"
	"vunits=us-ft"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+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 +datum=NAD83 +units=us-ft +vunits=us-ft +no_defs +type=crs">
	<Layer srs="+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 +datum=NAD83 +units=us-ft +vunits=us-ft +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 8723, 'EPSG', 8723, '+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 +datum=NAD83 +units=us-ft +vunits=us-ft +no_defs +type=crs', 'COMPD_CS["NAD83 / Connecticut (ftUS) + NAVD88 height (ftUS)",PROJCS["NAD83 / Connecticut (ftUS)",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6269"]],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,AUTHORITY["EPSG","9003"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","2234"]],VERT_CS["NAVD88 height (ftUS)",VERT_DATUM["North American Vertical Datum 1988",2005,AUTHORITY["EPSG","5103"]],UNIT["US survey foot",0.304800609601219,AUTHORITY["EPSG","9003"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","6360"]],AUTHORITY["EPSG","8723"]]');