NOAA S-57 chart cell

Lake Michigan - Racine, WI

US4WI1CP

Usage band
Approach · code 4
Current edition
1.1
Features
312
S-57 layers
40
Published
Jan 8, 2024
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
42.90000° N
South
42.60000° N
West
87.90000° W
East
87.60000° W
Center
42.75000° N, 87.75000° W
Bounds area
238 sq nm
Feature density
1.3096 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
7.8
Smallest layer
1
Largest layer
42
Area sq km
817
Features per sq km
0.38182
  1. DEPARE Depth area 42
  2. DEPCNT Depth contour 42
  3. SLCONS Shoreline construction 37
  4. LIGHTS Light 25
  5. LNDMRK 19
  6. COALNE Coastline 17
  7. OBSTRN Obstruction 16
  8. SBDARE Seabed area 9
  9. BCNLAT Lateral beacon 8
  10. RIVERS River 8
  11. BOYLAT Lateral buoy 7
  12. DAYMAR 7
  13. M_QUAL Data quality 7
  14. BUAARE 6
  15. PIPSOL 6
  16. RECTRC 6
  17. SEAARE Sea area 6
  18. UWTROC Underwater rock 6
  19. BUISGL 5
  20. SILTNK 3

Nearby Chart Cells

Approach usage band

  1. Lake Michigan - Offshore of Racine, WI US4WI1CQ - about 13 nm away
  2. Lake Michigan - Kenosha to Waukegan, IL US4IL1ZX - about 18 nm away
  3. Lake Michigan - Whitefish Bay and Milwaukee Bay, WI US4WI1DP - about 18 nm away
  4. Lake Michigan - Milwaukee River, WI US4WI1DO - about 22 nm away
  5. Lake Michigan - Offshore of Milwaukee, WI US4WI1DQ - about 22 nm away
  6. Lake Michigan - Offshore of Waukegan, IL US4IL1ZY - about 22 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
1.1 Jan 8, 2024 metadata.json