NOAA S-57 chart cell

Freeport, TX - Intracoastal Waterway To Brazos River

US5FPOCA

Usage band
Harbor · code 5
Current edition
17.5
Features
676
S-57 layers
51
Published
Jun 2, 2026
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
28.95000° N
South
28.87500° N
West
95.40000° W
East
95.32500° W
Center
28.91250° N, 95.36250° W
Bounds area
18 sq nm
Feature density
38.0845 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
13.3
Smallest layer
1
Largest layer
111
Area sq km
61
Features per sq km
11.10368
  1. SLCONS Shoreline construction 111
  2. DEPARE Depth area 86
  3. COALNE Coastline 64
  4. DEPCNT Depth contour 59
  5. MORFAC 37
  6. M_QUAL Data quality 36
  7. DRGARE 32
  8. LNDRGN Land region 28
  9. DYKCON 22
  10. LNDARE Land area 18
  11. OBSTRN Obstruction 17
  12. PILPNT 17
  13. CANALS 14
  14. SOUNDG Sounding 13
  15. BERTHS 10
  16. CTNARE Caution area 9
  17. LAKARE 8
  18. FAIRWY Fairway 7
  19. RIVERS River 7
  20. BUISGL 6

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
17.5 Jun 2, 2026 metadata.json