Schema
Sea Area Locations (USACE IENC) / Sea Area Locations (USACE IENC) / v1.0.0
Schema from sea-area-locations-usace-ienc-1.parquet, gcp-portolan-published, v1.0.0.
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. IENC POC: IENC_POC@usace.army.mil
| Column | Type | Nullable | Nulls | Unique | Description | Examples / Values |
|---|---|---|---|---|---|---|
| geometry | geometry | No | 0 | — | — Range: —Length: — | Examples: — Values: — |
| OBJECTID | integer | No | 0 | — | — Range: 1 to 1942Length: — | Examples: 769, 705, 727, 216, 1159 Values: — |
| Category_o | string | Yes | 1,291 | — | — Range: —Length: 16 | Examples: River, River, River, Shoal, River Values: Backwater/Slough, Bay, Bend, Canal, Chute, Lake, Reach, River, Shoal, Unknown |
| Object_Nam | string | No | 0 | — | — Range: —Length: 55 | Examples: Federal Mooring Cells, Proctor Bar, Sandy Creek Bar, Dry Branch, Paint Rock Creek Values: — |
| Informatio | string | Yes | 1,843 | — | — Range: —Length: 58 | Examples: (479) 667-2120, Historic Reference Point, (870) 548-2796, Historic Reference Point, Historic Reference Point Values: — |
| Scale_Mini | float | Yes | 2 | — | — Range: 45000 to 60000Length: — | Examples: 45000.0, 60000.0, 60000.0, 60000.0, 60000.0 Values: — |
| Source_Dat | string | No | 0 | — | — Range: —Length: 8 | Examples: 20050210, 20031224, 20060901, 20050414, 20030101 Values: — |
| Source_Ind | string | No | 0 | — | — Range: —Length: 76 | Examples: US,U3,graph,USACE Louisville SDS, US,U3,graph,USACE_Pittsburgh_SDS, US,U3,graph,USACE Huntington SDS, US,U3,graph,USACE_Nashville_SDS, US,U3,CHART,2003 Tennessee River Navigation Charts Values: — |
| Source_D_1 | string | No | 0 | — | — Range: —Length: 12 | Examples: U37OH736.000, U37OH087.000, U37OH204.000, U37CR307.000, U37TN564.000 Values: — |
| id | integer | No | 0 | — | — Range: 1 to 1942Length: — | Examples: 769, 705, 727, 216, 1159 Values: — |