EPSG:5409 DEPRECATED

COORDINATEOPERATION["NGVD29 height to NAVD88 height (1)",
    VERSION["NGS-US Conus W"],
    SOURCECRS[
        VERTCRS["NGVD29 height (ftUS)",
            VDATUM["National Geodetic Vertical Datum 1929"],
            CS[vertical,1],
                AXIS["gravity-related height (H)",up,
                    LENGTHUNIT["US survey foot",0.304800609601219]],
            ID["EPSG",5702]]],
    TARGETCRS[
        VERTCRS["NAVD88 height",
            VDATUM["North American Vertical Datum 1988"],
            CS[vertical,1],
                AXIS["gravity-related height (H)",up,
                    LENGTHUNIT["metre",1]],
            ID["EPSG",5703]]],
    METHOD["Vertical Offset by Grid Interpolation (VERTCON)",
        ID["EPSG",9658]],
    PARAMETERFILE["Vertical offset file","vertconw.94"],
    OPERATIONACCURACY[0.02],
    USAGE[
        SCOPE["Transformation of coordinates at 0.02m level of accuracy."],
        AREA["United States (USA) - CONUS west of 107°W - onshore - Arizona; California; Colorado; Idaho; Montana; Nevada; New Mexico; Oregon; Utah; Washington; Wyoming."],
        BBOX[31.33,-124.79,49.05,-107]],
    ID["EPSG",5409],
    REMARK["Interpolation within the gridded data file may be made using any of the horizontal CRSs NAD27, NAD83 or NAD83(HARN)."]]

proj4.defs("EPSG:5409","+proj=vgridshift +grids=us_noaa_vertconw.tif +multiplier=1");

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "Transformation",
    "name": "NGVD29 height to NAVD88 height (1)",
    "source_crs": {
        "type": "VerticalCRS",
        "name": "NGVD29 height (ftUS)",
        "datum": {
            "type": "VerticalReferenceFrame",
            "name": "National Geodetic Vertical Datum 1929"
        },
        "coordinate_system": {
            "subtype": "vertical",
            "axis": [
                {
                    "name": "Gravity-related height",
                    "abbreviation": "H",
                    "direction": "up",
                    "unit": {
                        "type": "LinearUnit",
                        "name": "US survey foot",
                        "conversion_factor": 0.304800609601219
                    }
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 5702
        }
    },
    "target_crs": {
        "type": "VerticalCRS",
        "name": "NAVD88 height",
        "datum": {
            "type": "VerticalReferenceFrame",
            "name": "North American Vertical Datum 1988"
        },
        "coordinate_system": {
            "subtype": "vertical",
            "axis": [
                {
                    "name": "Gravity-related height",
                    "abbreviation": "H",
                    "direction": "up",
                    "unit": "metre"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 5703
        }
    },
    "method": {
        "name": "Vertical Offset by Grid Interpolation (VERTCON)",
        "id": {
            "authority": "EPSG",
            "code": 9658
        }
    },
    "parameters": [
        {
            "name": "Vertical offset file",
            "value": "vertconw.94",
            "id": {
                "authority": "EPSG",
                "code": 8732
            }
        }
    ],
    "accuracy": "0.02",
    "scope": "Transformation of coordinates at 0.02m level of accuracy.",
    "area": "United States (USA) - CONUS west of 107°W - onshore - Arizona; California; Colorado; Idaho; Montana; Nevada; New Mexico; Oregon; Utah; Washington; Wyoming.",
    "bbox": {
        "south_latitude": 31.33,
        "west_longitude": -124.79,
        "north_latitude": 49.05,
        "east_longitude": -107
    },
    "id": {
        "authority": "EPSG",
        "code": 5409
    },
    "remarks": "Interpolation within the gridded data file may be made using any of the horizontal CRSs NAD27, NAD83 or NAD83(HARN)."
}

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=vgridshift +grids=us_noaa_vertconw.tif +multiplier=1">
	<Layer srs="+proj=vgridshift +grids=us_noaa_vertconw.tif +multiplier=1">
	</Layer>
</Map>

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 5409, 'EPSG', 5409, '+proj=vgridshift +grids=us_noaa_vertconw.tif +multiplier=1', 'None');