{
  "assets": {
    "geojson-e3d3e8d1b560": {
      "file:checksum": "d50110f43fa3e2e66b3d44373b3bf3767d5671",
      "file:size": 175749,
      "href": "https://storage.googleapis.com/hifld-next-datasets-prod/hifld/lock-gate-lines-usace-ienc-2/lock-gate-lines-usace-ienc-2/v1.0.0/geojson/lock-gate-lines-usace-ienc-2-geojson.geojson",
      "roles": [
        "data"
      ],
      "title": "lock-gate-lines-usace-ienc-2-geojson.geojson",
      "type": "application/geo+json"
    },
    "geopackage-3c7c50ffa3b0": {
      "file:checksum": "d50110ecdb65615f64db331698d479076a73e1",
      "file:size": 184320,
      "href": "https://storage.googleapis.com/hifld-next-datasets-prod/hifld/lock-gate-lines-usace-ienc-2/lock-gate-lines-usace-ienc-2/v1.0.0/geopackage/lock-gate-lines-usace-ienc-2.gpkg",
      "roles": [
        "data"
      ],
      "title": "lock-gate-lines-usace-ienc-2.gpkg",
      "type": "application/geopackage+sqlite3"
    },
    "geoparquet-ec302e9d7aa8": {
      "file:checksum": "d50110aefd1d4ce4a12d75f4d708e89bcea7ab",
      "file:size": 41390,
      "href": "https://storage.googleapis.com/hifld-next-datasets-prod/hifld/lock-gate-lines-usace-ienc-2/lock-gate-lines-usace-ienc-2/v1.0.0/geoparquet/lock-gate-lines-usace-ienc-2.parquet",
      "roles": [
        "data"
      ],
      "title": "lock-gate-lines-usace-ienc-2.parquet",
      "type": "application/vnd.apache.parquet"
    },
    "pmtiles-93c60c0c8f58": {
      "file:checksum": "d50110e4810a00a77a7bf3ae98526a2cfa1f65",
      "file:size": 210403,
      "href": "https://storage.googleapis.com/hifld-next-datasets-prod/hifld/lock-gate-lines-usace-ienc-2/lock-gate-lines-usace-ienc-2/v1.0.0/pmtiles/lock-gate-lines-usace-ienc-2.pmtiles",
      "roles": [
        "data"
      ],
      "title": "lock-gate-lines-usace-ienc-2.pmtiles",
      "type": "application/vnd.pmtiles"
    },
    "shapefile-5a641329d567": {
      "file:checksum": "d5011038e67aab86897fbd1146751249b7755a",
      "file:size": 26604,
      "href": "https://storage.googleapis.com/hifld-next-datasets-prod/hifld/lock-gate-lines-usace-ienc-2/lock-gate-lines-usace-ienc-2/v1.0.0/shapefile/lock-gate-lines-usace-ienc-2.zip",
      "roles": [
        "data"
      ],
      "title": "lock-gate-lines-usace-ienc-2.zip",
      "type": "application/zip"
    }
  },
  "description": "The USACE IENCs coverage area consists of 7,260 miles across 21 rivers primarily located in the Central United States. IENCs apply to inland waterways that are maintained for navigation by USACE for shallow-draft vessels (e.g., maintained at a depth of 9-14 feet, dependent upon the waterway project authorization). Generally, IENCs are produced for those commercially navigable waterways which the National Oceanic and Atmospheric Administration (NOAA) does not produce Electronic Navigational Charts (ENCs). However, Special Purpose IENCs may be produced in agreement with NOAA.\u00a0IENC POC: IENC_POC@usace.army.mil",
  "extent": {
    "spatial": {
      "bbox": [
        [
          -95.53715549999998,
          31.00099700000004,
          -79.47640829999995,
          44.98137070000007
        ]
      ]
    },
    "temporal": {
      "interval": [
        [
          null,
          null
        ]
      ]
    }
  },
  "hifld:agency": "US Army Corps of Engineers",
  "hifld:feature_count": 299,
  "hifld:feature_id_column": null,
  "hifld:geometry_column": "geometry",
  "hifld:geometry_type": "LineString",
  "hifld:inventory_match_type": null,
  "hifld:manifest_keys": [
    "lock-gate-lines-usace-ienc-2/metadata/source_manifest.json",
    "lock-gate-lines-usace-ienc-2/lock-gate-lines-usace-ienc-2/metadata/source_manifest.json"
  ],
  "hifld:manifest_role": "resolved_version",
  "hifld:metadata_resolved_from": {},
  "hifld:metadata_sources": [],
  "hifld:native_bbox": [
    -95.53715549999998,
    31.00099700000004,
    -79.47640829999995,
    44.98137070000007
  ],
  "hifld:native_crs": "{\"$schema\": \"https://proj.org/schemas/v0.7/projjson.schema.json\", \"coordinate_system\": {\"axis\": [{\"abbreviation\": \"Lat\", \"direction\": \"north\", \"name\": \"Geodetic latitude\", \"unit\": \"degree\"}, {\"abbreviation\": \"Lon\", \"direction\": \"east\", \"name\": \"Geodetic longitude\", \"unit\": \"degree\"}], \"subtype\": \"ellipsoidal\"}, \"datum\": {\"ellipsoid\": {\"inverse_flattening\": 298.257223563, \"name\": \"WGS 84\", \"semi_major_axis\": 6378137}, \"name\": \"World Geodetic System 1984\", \"type\": \"GeodeticReferenceFrame\"}, \"id\": {\"authority\": \"EPSG\", \"code\": 4326}, \"name\": \"WGS 84\", \"type\": \"GeographicCRS\"}",
  "hifld:office": null,
  "hifld:quality": {
    "columns_hash": "c75981c9f6bff0028229637f9dcabd2dc19d17e0526d376a6df40f239c0c26b8",
    "invalid_geometry_count": 0,
    "manifest_href": "metadata/quality_manifest.json",
    "null_geometry_count": 0,
    "passed": true,
    "provenance": "production_metadata_and_parquet_footer_spike",
    "sampled_feature_count": null,
    "sampled_invalid_geometry_count": null,
    "sampled_null_geometry_count": null
  },
  "hifld:source_dates": {
    "issued": "2024-02-05",
    "modified": "2025-04-08",
    "provenance": {
      "issued": "inventory",
      "modified": "inventory"
    }
  },
  "hifld:spatial_status": "spatial",
  "id": "hifld/lock-gate-lines-usace-ienc-2/lock-gate-lines-usace-ienc-2/v1.0.0",
  "keywords": [
    "Transportation Water",
    "Commercial",
    "Emergency Services"
  ],
  "license": "other",
  "links": [
    {
      "href": "https://storage.googleapis.com/hifld-next-datasets-prod/releases/cf809c93-c5c0-4ec3-968a-d3ecb8ec6696/catalog.json",
      "rel": "root",
      "type": "application/json"
    },
    {
      "href": "https://storage.googleapis.com/hifld-next-datasets-prod/releases/cf809c93-c5c0-4ec3-968a-d3ecb8ec6696/hifld/lock-gate-lines-usace-ienc-2/lock-gate-lines-usace-ienc-2/catalog.json",
      "rel": "parent",
      "type": "application/json"
    },
    {
      "href": "https://storage.googleapis.com/hifld-next-datasets-prod/releases/cf809c93-c5c0-4ec3-968a-d3ecb8ec6696/hifld/lock-gate-lines-usace-ienc-2/lock-gate-lines-usace-ienc-2/v1.0.0/collection.json",
      "rel": "self",
      "type": "application/json"
    },
    {
      "href": "https://storage.googleapis.com/hifld-next-datasets-prod/hifld/lock-gate-lines-usace-ienc-2/lock-gate-lines-usace-ienc-2/v1.0.0/AGENTS.md",
      "rel": "agents",
      "type": "text/markdown"
    },
    {
      "href": "https://storage.googleapis.com/hifld-next-datasets-prod/hifld/lock-gate-lines-usace-ienc-2/lock-gate-lines-usace-ienc-2/v1.0.0/README.md",
      "rel": "describedby",
      "type": "text/markdown"
    },
    {
      "href": "https://www.datalumos.org/datalumos/project/239503/version/V1/view",
      "rel": "derived_from"
    },
    {
      "href": "https://storage.googleapis.com/hifld-next-datasets-prod/hifld/lock-gate-lines-usace-ienc-2/lock-gate-lines-usace-ienc-2/v1.0.0/pmtiles/lock-gate-lines-usace-ienc-2.pmtiles",
      "rel": "pmtiles",
      "title": "lock-gate-lines-usace-ienc-2.pmtiles",
      "type": "application/vnd.pmtiles"
    }
  ],
  "providers": [
    {
      "name": "U.S. Army Corps of Engineers",
      "roles": [
        "producer"
      ]
    },
    {
      "name": "HIFLD Next",
      "roles": [
        "host"
      ],
      "url": "https://hifld.publicenvirodata.org"
    }
  ],
  "stac_extensions": [
    "https://schemas.portolan-sdi.org/portolan/v0.2.0/schema.json",
    "https://stac-extensions.github.io/file/v2.1.0/schema.json",
    "https://stac-extensions.github.io/version/v1.2.0/schema.json",
    "https://stac-extensions.github.io/table/v1.2.0/schema.json",
    "https://stac-extensions.github.io/web-map-links/v1.3.0/schema.json"
  ],
  "stac_version": "1.1.0",
  "table:columns": [
    {
      "is_geometry": true,
      "name": "geometry",
      "null_count": 0,
      "nullable": false,
      "numNullValues": 0,
      "type": "geometry"
    },
    {
      "exampleValues": [
        "207",
        "189",
        "13",
        "220",
        "238"
      ],
      "is_geometry": false,
      "max": "299.0",
      "min": "1.0",
      "name": "OBJECTID",
      "null_count": 0,
      "nullable": false,
      "numNullValues": 0,
      "type": "integer"
    },
    {
      "exampleValues": [
        "Lock Gate",
        "Lock Gate",
        "Lock Gate",
        "Lock Gate",
        "Lock Gate"
      ],
      "is_geometry": false,
      "length": 18,
      "name": "Category_o",
      "null_count": 0,
      "nullable": false,
      "numNullValues": 0,
      "possibleValues": [
        "Flood Barrage Gate",
        "Lock Gate"
      ],
      "type": "string"
    },
    {
      "exampleValues": [
        "33.5",
        "33.5",
        "Unknown",
        "33.5",
        "33.5"
      ],
      "is_geometry": false,
      "length": 7,
      "name": "Horizontal",
      "null_count": 0,
      "nullable": false,
      "numNullValues": 0,
      "possibleValues": [
        "17.1",
        "18.3",
        "22.4",
        "22.5",
        "22.9",
        "24.4",
        "25.6",
        "26.6",
        "32.5",
        "33.5",
        "33.52",
        "33.53",
        "7.92",
        "Unknown"
      ],
      "type": "string"
    },
    {
      "exampleValues": [
        "Unknown",
        "Unknown",
        "Unknown",
        "Unknown",
        "Unknown"
      ],
      "is_geometry": false,
      "length": 7,
      "name": "Vertical_C",
      "null_count": 286,
      "nullable": true,
      "numNullValues": 286,
      "possibleValues": [
        "Unknown"
      ],
      "type": "string"
    },
    {
      "exampleValues": [
        "Lock 25 Main Lock Downstream Miter Gate",
        "Mel Price Aux Lock Upstream Miter Gate",
        "Jerry F. Costello Upstream Miter Gate",
        "Mel Price Main Lock Downstream Miter Gate",
        "Lock 25 Aux Miter Gate"
      ],
      "is_geometry": false,
      "length": 41,
      "name": "Object_Nam",
      "null_count": 290,
      "nullable": true,
      "numNullValues": 290,
      "possibleValues": [
        "Jerry F. Costello Downstream Miter Gate",
        "Jerry F. Costello Upstream Miter Gate",
        "Lock 25 Aux Miter Gate",
        "Lock 25 Main Lock Downstream Miter Gate",
        "Lock 25 Main Lock Upstream Miter Gate",
        "Mel Price Aux Lock Downtream Miter Gate",
        "Mel Price Aux Lock Upstream Miter Gate",
        "Mel Price Main Lock Downstream Miter Gate",
        "Mel Price Main Lock Upstream Lift Gate"
      ],
      "type": "string"
    },
    {
      "exampleValues": [
        "Auxillary Lock Chamber",
        "Auxilliary Gate",
        "Lift gate",
        "Harbor closure flood gate. Gates close with river stages over 18' on the Dubuque RR Bridge gage.",
        "Main Lock Chamber"
      ],
      "is_geometry": false,
      "length": 96,
      "name": "Informatio",
      "null_count": 288,
      "nullable": true,
      "numNullValues": 288,
      "possibleValues": [
        "Auxillary Lock Chamber",
        "Auxilliary Gate",
        "Gate is located within main lock chamber.",
        "Harbor closure flood gate. Gates close with river stages over 18' on the Dubuque RR Bridge gage.",
        "Lift gate",
        "Lockage Size = 84ft x 705ft",
        "Main Lock Chamber"
      ],
      "type": "string"
    },
    {
      "exampleValues": [
        "22000",
        "22000",
        "22000",
        "22000",
        "22000"
      ],
      "is_geometry": false,
      "max": "90000.0",
      "min": "22000.0",
      "name": "Scale_Mini",
      "null_count": 0,
      "nullable": false,
      "numNullValues": 0,
      "type": "integer"
    },
    {
      "exampleValues": [
        "20200716",
        "20200716",
        "20130701",
        "19991201",
        "20140910"
      ],
      "is_geometry": false,
      "length": 8,
      "name": "Source_Dat",
      "null_count": 0,
      "nullable": false,
      "numNullValues": 0,
      "type": "string"
    },
    {
      "exampleValues": [
        "US,U3,SURVY,SAM_Field_Survey,IENC_20_050",
        "US,U3,SURVY,SAM_Field_Survey,IENC_20_050",
        "US,U3,SURVY,SWL_Field_Survey,IENC_13_033",
        "US,U3,graph,St_Louis_SDS_1999",
        "US,U3,SURVY,MVR_Field_Survey,IENC_14_061"
      ],
      "is_geometry": false,
      "length": 88,
      "name": "Source_Ind",
      "null_count": 0,
      "nullable": false,
      "numNullValues": 0,
      "type": "string"
    },
    {
      "exampleValues": [
        "U37TT385.000",
        "U37TT218.000",
        "U37AR246.000",
        "U37UM218.000",
        "U37UM432.000"
      ],
      "is_geometry": false,
      "length": 12,
      "name": "Source_D_1",
      "null_count": 0,
      "nullable": false,
      "numNullValues": 0,
      "type": "string"
    },
    {
      "exampleValues": [
        "0.000407944398657",
        "0.000406391611348",
        "0.000347739478856",
        "0.000332604878673",
        "0.000369295647617"
      ],
      "is_geometry": false,
      "max": "0.00046864274995",
      "min": "4.0521599186e-05",
      "name": "SHAPE_Leng",
      "null_count": 0,
      "nullable": false,
      "numNullValues": 0,
      "type": "float"
    },
    {
      "exampleValues": [
        "207",
        "189",
        "13",
        "220",
        "238"
      ],
      "is_geometry": false,
      "max": "299.0",
      "min": "1.0",
      "name": "id",
      "null_count": 0,
      "nullable": false,
      "numNullValues": 0,
      "type": "integer"
    }
  ],
  "title": "Lock Gate Lines (USACE IENC)",
  "type": "Collection"
}