NOAA S-57 chart cell

Trinity Bay to San Jacinto River

US4TX1OJ

Usage band
Approach · code 4
Current edition
4.1
Features
2,403
S-57 layers
59
Published
May 7, 2026
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
30.00000° N
South
29.70000° N
West
95.10000° W
East
94.80000° W
Center
29.85000° N, 94.95000° W
Bounds area
281 sq nm
Feature density
8.5396 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
40.7
Smallest layer
1
Largest layer
433
Area sq km
965
Features per sq km
2.48975
  1. SLCONS Shoreline construction 433
  2. COALNE Coastline 307
  3. DEPCNT Depth contour 235
  4. DEPARE Depth area 200
  5. OBSTRN Obstruction 150
  6. LIGHTS Light 103
  7. M_QUAL Data quality 87
  8. DAYMAR 79
  9. LNDRGN Land region 79
  10. BCNSPP Special purpose beacon 78
  11. LNDARE Land area 73
  12. BCNLAT Lateral beacon 56
  13. SILTNK 36
  14. SBDARE Seabed area 34
  15. DYKCON 31
  16. LAKARE 30
  17. MORFAC 30
  18. OFSPLF 29
  19. PYLONS 28
  20. SEAARE Sea area 27

Nearby Chart Cells

Approach usage band

  1. Trinity Bay to Lake Anahuac US4TX1OK - about 16 nm away
  2. Texas - Buffalo Bayou US4TX1OI - about 16 nm away
  3. Galveston Bay and Trinity Bay US4TX1NJ - about 18 nm away
  4. Gulf Intracoastal Waterway - Galveston Bay, East Bay, Trinity Bay to Gulf of America US4TX1NK - about 24 nm away
  5. Texas - Clear Creek US4TX1NI - about 24 nm away
  6. Gulf Intracoastal Waterway - Galveston Bay, West Bay to Gulf of America US4TX1MJ - about 36 nm away

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.

Editions

Edition Published Metadata
4.1 May 7, 2026 metadata.json