NOAA S-57 chart cell

Lake Michigan - Chicago, IL

US5CHIJL

Usage band
Harbor · code 5
Current edition
1.4
Features
1,979
S-57 layers
52
Published
Apr 22, 2026
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
41.92500° N
South
41.85000° N
West
87.67500° W
East
87.60000° W
Center
41.88750° N, 87.63750° W
Bounds area
15 sq nm
Feature density
131.0975 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
38.1
Smallest layer
1
Largest layer
512
Area sq km
52
Features per sq km
38.22191
  1. PONTON 512
  2. BUISGL 233
  3. DEPARE Depth area 184
  4. DEPCNT Depth contour 166
  5. SLCONS Shoreline construction 134
  6. BRIDGE 125
  7. PILPNT 86
  8. MORFAC 85
  9. CBLSUB 48
  10. M_QUAL Data quality 47
  11. LIGHTS Light 46
  12. COALNE Coastline 44
  13. LNDMRK 30
  14. OBSTRN Obstruction 29
  15. DRGARE 25
  16. SEAARE Sea area 17
  17. BCNSPP Special purpose beacon 14
  18. CBLOHD 10
  19. LNDARE Land area 10
  20. UWTROC Underwater rock 10

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
1.4 Apr 22, 2026 metadata.json