Schema
Warning Signal Stations (USACE IENC) / Warning Signal Stations (USACE IENC) / v1.0.0
Schema from warning-signal-stations-usace-ienc.parquet, gcs-hifld-next-datasets-prod, 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 510Length: — | Examples: 95, 112, 389, 424, 224 Values: — |
| Category_o | string | No | 0 | — | — Range: —Length: 29 | Examples: Vertical Clearance Indication, High Water Mark, Vertical Clearance Indication, Vertical Clearance Indication, Vertical Clearance Indication Values: Depth Indication, High Water Mark, Vertical Clearance Indication |
| Object_Nam | string | Yes | 467 | — | — Range: —Length: 49 | Examples: Lock 25 Lower Depth Indicator, Tennessee Route 30 Bridge (517.9), Lock 25 Upper Depth Indicator, Sebree-Beach Grove Bridge, KY 85 (Island-Centertown) Hwy Bridge Values: — |
| Informatio | string | Yes | 450 | — | — Range: —Length: 45 | Examples: Wolcott Kansas I-435 Highway Bridge (383.3), Kansas City Mo. Hwy I-435 Bridge, Neville Island Bridge (Main Channel) (8.7), Wolcott Kansas I-435 Highway Bridge (383.3), Sen. Christopher S. Bond Bridge (98.0) Values: — |
| Scale_Mini | integer | No | 0 | — | — Range: 45000 to 45000Length: — | Examples: 45000, 45000, 45000, 45000, 45000 Values: — |
| Source_Dat | string | No | 0 | — | — Range: —Length: 8 | Examples: 20180917, 20180917, 20140611, 20140605, 20150115 Values: — |
| Source_Ind | string | No | 0 | — | — Range: —Length: 88 | Examples: US,U3,SURVY,SWL_Field_Survey,IENC_18_058, US,U3,SURVY,SWL_Field_Survey,IENC_18_058, US,U3,SURVY,2014_SEAS_LIDAR_Mapping_Survey, US,U3,SURVY,2014_SEAS_LIDAR_Mapping_Survey, US,U3,SURVY,MVR_Field_Survey,IENC_15_022 Values: — |
| Source_D_1 | string | No | 0 | — | — Range: —Length: 12 | Examples: U37AR186.000, U37AR246.000, U37TN306.000, U37TN564.000, U37IL137.000 Values: — |