Schema
Distance Marks (USACE IENC) / Distance Marks (USACE IENC) / v1.0.0
Schema from distance-marks-usace-ienc-2.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 5000Length: — | Examples: 399, 3834, 4837, 4573, 637 Values: — |
| Category_o | string | No | 0 | — | — Range: —Length: 38 | Examples: Distance Mark Not Physically Installed, Distance Mark Not Physically Installed, Distance Mark Not Physically Installed, Distance Mark Not Physically Installed, Distance Mark Not Physically Installed Values: Distance Mark Not Physically Installed |
| Horizontal | string | No | 0 | — | — Range: —Length: 13 | Examples: Statute Miles, Statute Miles, Statute Miles, Statute Miles, Statute Miles Values: Statute Miles |
| Waterway_D | integer | No | 0 | — | — Range: 0 to 981Length: — | Examples: 309, 420, 106, 106, 112 Values: — |
| Informatio | string | Yes | 1 | — | — Range: —Length: 58 | Examples: Ouachita River (OU), Illinois River (IL), Atchafalaya River (AT), Clinch (CL), Ohio (OH) Values: — |
| Scale_Mini | integer | No | 0 | — | — Range: 120000 to 120000Length: — | Examples: 120000, 120000, 120000, 120000, 120000 Values: — |
| Source_Dat | string | No | 0 | — | — Range: —Length: 8 | Examples: 20060614, 20060901, 20020901, 20100430, 20160401 Values: — |
| Source_Ind | string | No | 0 | — | — Range: —Length: 65 | Examples: US,U3,graph,Arkansas_SDS_2006, US,U3,graph,USACE Huntington SDS, US,U3,graph,Vicksburg_SDS_2002, US,U3,SURVY,MVK_Field_Survey,IENC_10_000, US,U3,SURVY,MVN_Field_Survey,IENC_16_029 Values: — |
| Source_D_1 | string | No | 0 | — | — Range: —Length: 12 | Examples: U37AR308.000, U37OH391.000, U37RR071.000, U37OU089.000, U37AT046.000 Values: — |
| id | integer | No | 0 | — | — Range: 1 to 5000Length: — | Examples: 399, 3834, 4837, 4573, 637 Values: — |