NOAA S-57 chart cell
Gulf Intracoastal Waterway - Sabine Bank - Gulf of America
US4TX1NM
- Usage band
- Approach · code 4
- Current edition
- 1.2
- Features
- 317
- S-57 layers
- 37
- Published
- Nov 19, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 29.70000° N
- South
- 29.40000° N
- West
- 94.20000° W
- East
- 93.90000° W
- Center
- 29.55000° N, 94.05000° W
- Bounds area
- 282 sq nm
- Feature density
- 1.1232 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 8.6
- Smallest layer
- 1
- Largest layer
- 57
- Area sq km
- 968
- Features per sq km
- 0.32746
- SBDARE Seabed area 57
- OFSPLF 42
- PIPSOL 41
- OBSTRN Obstruction 19
- COALNE Coastline 18
- LNDRGN Land region 15
- WRECKS Wreck 15
- DEPARE Depth area 14
- M_QUAL Data quality 12
- RIVERS River 12
- SLCONS Shoreline construction 11
- DEPCNT Depth contour 10
- SOUNDG Sounding 10
- LAKARE 6
- PILPNT 6
- LNDARE Land area 3
- SEAARE Sea area 3
- ADMARE 2
- FAIRWY Fairway 2
- MAGVAR Magnetic variation 2
Nearby Chart Cells
Approach usage band
Current Edition Files
The NOAA ZIP archive is the upstream source for this chart cell; the other files are Open Ships generated derivatives for web and GIS use.
- Original NOAA ZIP archive https://www.charts.noaa.gov/ENCs/US4TX1NM.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4TX1NM/1.2/US4TX1NM.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4TX1NM/1.2/US4TX1NM.001
- S-57 update 002 https://charts.openships.ai/noaa/s57/approach/US4TX1NM/1.2/US4TX1NM.002
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4TX1NM/1.2/US4TX1NM.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4TX1NM/1.2/US4TX1NM.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4TX1NM/1.2/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.2 | Nov 19, 2025 | metadata.json |