NOAA S-57 chart cell

Mississippi River - South Louisiana - Mile 225-227 and Intracoastal Waterway Alternate Route

US5BPGFA

Usage band
Harbor · code 5
Current edition
11.1
Features
608
S-57 layers
46
Published
Jun 3, 2026
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
30.45000° N
South
30.37500° N
West
91.27500° W
East
91.20000° W
Center
30.41250° N, 91.23750° W
Bounds area
17 sq nm
Feature density
34.7681 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
13.2
Smallest layer
1
Largest layer
98
Area sq km
60
Features per sq km
10.13677
  1. DEPCNT Depth contour 98
  2. DEPARE Depth area 88
  3. MORFAC 55
  4. SLCONS Shoreline construction 35
  5. ROADWY 32
  6. SOUNDG Sounding 31
  7. COALNE Coastline 30
  8. OBSTRN Obstruction 27
  9. SILTNK 27
  10. BUISGL 21
  11. PILPNT 15
  12. M_QUAL Data quality 13
  13. PIPARE 12
  14. RESARE 11
  15. DISMAR 10
  16. CBLARE 9
  17. LNDARE Land area 8
  18. WRECKS Wreck 8
  19. BUAARE 7
  20. SEAARE Sea area 7

Nearby Chart Cells

Harbor 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.

Editions

Edition Published Metadata
11.1 Jun 3, 2026 metadata.json