NOAA S-57 chart cell

Texas - Buffalo Bayou

US4TX1OI

Usage band
Approach · code 4
Current edition
2.1
Features
1,485
S-57 layers
46
Published
Jun 27, 2025
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
30.00000° N
South
29.70000° N
West
95.40000° W
East
95.10000° W
Center
29.85000° N, 95.25000° W
Bounds area
281 sq nm
Feature density
5.2773 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
32.3
Smallest layer
1
Largest layer
405
Area sq km
965
Features per sq km
1.53861
  1. SLCONS Shoreline construction 405
  2. COALNE Coastline 275
  3. DEPCNT Depth contour 103
  4. DEPARE Depth area 91
  5. MORFAC 89
  6. OBSTRN Obstruction 66
  7. BUISGL 64
  8. SILTNK 45
  9. CBLOHD 42
  10. BRIDGE 40
  11. M_QUAL Data quality 29
  12. RIVERS River 21
  13. SEAARE Sea area 20
  14. PIPARE 18
  15. SLOTOP 18
  16. PIPOHD 15
  17. LNDARE Land area 14
  18. DYKCON 13
  19. BUAARE 10
  20. HRBFAC 10

Nearby Chart Cells

Approach usage band

  1. Trinity Bay to San Jacinto River US4TX1OJ - about 16 nm away
  2. Texas - Clear Creek US4TX1NI - about 18 nm away
  3. Galveston Bay and Trinity Bay US4TX1NJ - about 24 nm away
  4. Trinity Bay to Lake Anahuac US4TX1OK - about 31 nm away
  5. Gulf Intracoastal Waterway - West Bay and Chocolate Bay US4TX1MI - about 36 nm away
  6. Gulf Intracoastal Waterway - Galveston Bay, East Bay, Trinity Bay to Gulf of America US4TX1NK - 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
2.1 Jun 27, 2025 metadata.json