NOAA S-57 chart cell
Gulf Intracoastal Waterway - Matagorda Bay and Tres Palacios Bay
US4TX1KF
- Usage band
- Approach · code 4
- Current edition
- 1.3
- Features
- 1,488
- S-57 layers
- 47
- Published
- Sep 29, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 28.80000° N
- South
- 28.50000° N
- West
- 96.30000° W
- East
- 96.00000° W
- Center
- 28.65000° N, 96.15000° W
- Bounds area
- 285 sq nm
- Feature density
- 5.2263 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 31.7
- Smallest layer
- 1
- Largest layer
- 173
- Area sq km
- 977
- Features per sq km
- 1.52374
- COALNE Coastline 173
- DEPCNT Depth contour 171
- DEPARE Depth area 168
- LNDRGN Land region 124
- SLCONS Shoreline construction 89
- SBDARE Seabed area 88
- RIVERS River 73
- LNDARE Land area 53
- PILPNT 51
- OBSTRN Obstruction 47
- LIGHTS Light 45
- M_QUAL Data quality 43
- DAYMAR 41
- BCNLAT Lateral beacon 34
- SEAARE Sea area 30
- DRGARE 27
- RETRFL 25
- OFSPLF 21
- DMPGRD 19
- DYKCON 18
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/US4TX1KF.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4TX1KF/1.3/US4TX1KF.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4TX1KF/1.3/US4TX1KF.001
- S-57 update 002 https://charts.openships.ai/noaa/s57/approach/US4TX1KF/1.3/US4TX1KF.002
- S-57 update 003 https://charts.openships.ai/noaa/s57/approach/US4TX1KF/1.3/US4TX1KF.003
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4TX1KF/1.3/US4TX1KF.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4TX1KF/1.3/US4TX1KF.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4TX1KF/1.3/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.3 | Sep 29, 2025 | metadata.json |