NOAA S-57 chart cell

Gulf Intracoastal Waterway - Sabine River and Cow Bayou

US4TX1PN

Usage band
Approach · code 4
Current edition
1.2
Features
1,178
S-57 layers
49
Published
Dec 18, 2025
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
30.30000° N
South
30.00000° N
West
93.90000° W
East
93.60000° W
Center
30.15000° N, 93.75000° W
Bounds area
281 sq nm
Feature density
4.199 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
24
Smallest layer
1
Largest layer
301
Area sq km
962
Features per sq km
1.22422
  1. COALNE Coastline 301
  2. LNDRGN Land region 132
  3. SLCONS Shoreline construction 118
  4. RIVERS River 117
  5. DEPARE Depth area 60
  6. DEPCNT Depth contour 47
  7. LIGHTS Light 30
  8. LNDARE Land area 30
  9. DAYMAR 29
  10. MORFAC 27
  11. BCNLAT Lateral beacon 24
  12. CBLOHD 20
  13. OBSTRN Obstruction 20
  14. BRIDGE 19
  15. WRECKS Wreck 18
  16. RETRFL 16
  17. LAKARE 15
  18. PILPNT 14
  19. PIPARE 14
  20. M_QUAL Data quality 13

Nearby Chart Cells

Approach usage band

  1. Gulf Intracoastal Waterway - Calcasieu River and Calcasieu Lake US4LA1HB - about 16 nm away
  2. Neches River US4TX1PM - about 16 nm away
  3. Gulf Intracoastal Waterway - Sabine Lake and Sabine Passage US4LA1GA - about 18 nm away
  4. Gulf Intracoastal Waterway - Sabine Neches Canal, Sabine Lake, and Neches River US4TX1OM - about 24 nm away
  5. Gulf of America to Calcasieu Pass and Calcasieu Lake US4LA1GB - about 24 nm away
  6. Gulf Intracoastal Waterway - Calcasieu River and Calcasieu Lake US4LA1HC - about 31 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
1.2 Dec 18, 2025 metadata.json