NOAA S-57 chart cell

Louisiana

US4LA1EO

Usage band
Approach · code 4
Current edition
3.2
Features
4,482
S-57 layers
61
Published
May 5, 2026
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
29.40000° N
South
29.10000° N
West
89.70000° W
East
89.40000° W
Center
29.25000° N, 89.55000° W
Bounds area
283 sq nm
Feature density
15.8335 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
73.5
Smallest layer
1
Largest layer
705
Area sq km
971
Features per sq km
4.61631
  1. COALNE Coastline 705
  2. LNDARE Land area 673
  3. PILPNT 558
  4. LNDRGN Land region 522
  5. PIPSOL 301
  6. RIVERS River 252
  7. SLCONS Shoreline construction 233
  8. OFSPLF 207
  9. OBSTRN Obstruction 181
  10. DEPARE Depth area 87
  11. DEPCNT Depth contour 82
  12. LIGHTS Light 82
  13. M_QUAL Data quality 74
  14. SEAARE Sea area 71
  15. BCNSPP Special purpose beacon 58
  16. SBDARE Seabed area 58
  17. CTNARE Caution area 35
  18. DAYMAR 32
  19. LAKARE 32
  20. SOUNDG Sounding 31

Nearby Chart Cells

Approach usage band

  1. Gulf of America to Barataria Bay, Lake Grande Ecaille, and Lake Washington US4LA1EN - about 16 nm away
  2. Mississippi River - Head of Passes US4LA1EP - about 16 nm away
  3. Gulf of America to Southwest Pass and West Bay US4LA1DO - about 18 nm away
  4. Louisiana US4LA1FO - about 18 nm away
  5. Mississippi River and Barataria Bay US4LA1FN - about 24 nm away
  6. Gulf of America to Breton Sound and Chandeleur Sound US4LA1FP - about 24 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
3.2 May 5, 2026 metadata.json