Schema
Data Coverage Areas (USACE IENC) / Data Coverage Areas (USACE IENC) / v1.0.0
Schema from data-coverage-areas-usace-ienc.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 317Length: — | Examples: 135, 251, 56, 256, 309 Values: — |
| Category_o | string | No | 0 | — | — Range: —Length: 11 | Examples: No Coverage, Coverage, No Coverage, No Coverage, No Coverage Values: Coverage, No Coverage |
| Source_Dat | string | Yes | 1 | — | — Range: —Length: 8 | Examples: 20100430, 20020822, 20040825, 20230420, 20020830 Values: — |
| Source_Ind | string | Yes | 1 | — | — Range: —Length: 40 | Examples: US,U3,SURVY,NWO_Field_Survey,IENC_10_000, US,U3,graph,ROCK_ISLAND_SDS_1998, US,U3,CEMVN,ILLINOIS RIVER, US,U3,graph,USACE Nashville District, US,U3,graph,ROCK_ISLAND_SDS_1998 Values: — |
| Source_D_1 | string | No | 0 | — | — Range: —Length: 12 | Examples: U37MO499.000, U37TN518.000, U37IL082.000, U37TN606.000, U37UM785.000 Values: — |
| SHAPE_Leng | float | No | 0 | — | — Range: 0.032987464933675 to 10.434854466015983Length: — | Examples: 3.201956737348502, 1.456062238185235, 2.086818634948345, 2.656501255133023, 0.835706005192892 Values: — |
| SHAPE_Area | float | No | 0 | — | — Range: 0.00003005163979 to 1.716237653680188Length: — | Examples: 0.370320563465551, 0.030576009006299, 0.173939248868779, 0.088043565484429, 0.033081222912 Values: — |
| id | integer | No | 0 | — | — Range: 1 to 317Length: — | Examples: 135, 251, 56, 256, 309 Values: — |