NOAA S-57 chart cell
Gulf Intracoastal Waterway - Baffin Bay, Laguna Madre to Gulf of America
US4TX1FB
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 941
- S-57 layers
- 40
- Published
- May 27, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 27.30000° N
- South
- 27.00000° N
- West
- 97.50000° W
- East
- 97.20000° W
- Center
- 27.15000° N, 97.35000° W
- Bounds area
- 289 sq nm
- Feature density
- 3.2596 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 23.5
- Smallest layer
- 1
- Largest layer
- 170
- Area sq km
- 990
- Features per sq km
- 0.95034
- UWTROC Underwater rock 170
- COALNE Coastline 94
- LNDRGN Land region 71
- DEPARE Depth area 68
- DEPCNT Depth contour 67
- OBSTRN Obstruction 57
- LNDARE Land area 53
- BCNLAT Lateral beacon 50
- DAYMAR 50
- SBDARE Seabed area 41
- RETRFL 39
- SLCONS Shoreline construction 26
- DMPGRD 22
- LIGHTS Light 15
- M_QUAL Data quality 15
- FAIRWY Fairway 12
- OFSPLF 9
- BUISGL 8
- SLOGRD 7
- CTNARE Caution area 6
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/US4TX1FB.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4TX1FB/1.0/US4TX1FB.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4TX1FB/1.0/US4TX1FB.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4TX1FB/1.0/US4TX1FB.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4TX1FB/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | May 27, 2025 | metadata.json |