NOAA S-57 chart cell

Lake Michigan - Manitowoc, WI

US4WI1GP

Usage band
Approach · code 4
Current edition
1.5
Features
224
S-57 layers
38
Published
Mar 5, 2026
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
44.10000° N
South
43.80000° N
West
87.90000° W
East
87.60000° W
Center
43.95000° N, 87.75000° W
Bounds area
234 sq nm
Feature density
0.959 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
5.9
Smallest layer
1
Largest layer
38
Area sq km
801
Features per sq km
0.2796
  1. DEPCNT Depth contour 38
  2. DEPARE Depth area 37
  3. LIGHTS Light 12
  4. RIVERS River 12
  5. UWTROC Underwater rock 12
  6. COALNE Coastline 10
  7. OBSTRN Obstruction 10
  8. LNDARE Land area 9
  9. M_QUAL Data quality 9
  10. SBDARE Seabed area 8
  11. SLCONS Shoreline construction 8
  12. BRIDGE 6
  13. PIPSOL 6
  14. OFSPLF 5
  15. LNDMRK 4
  16. LNDRGN Land region 4
  17. BCNSPP Special purpose beacon 3
  18. BUAARE 3
  19. CBLOHD 3
  20. BOYLAT Lateral buoy 2

Nearby Chart Cells

Approach usage band

  1. Lake Michigan - Offshore of Manitowoc, WI US4WI1GQ - about 13 nm away
  2. Lake Michigan - North Manitowoc, WI US4WI1HP - about 18 nm away
  3. Lake Michigan - Sheboygan, WI US4WI1FP - about 18 nm away
  4. Fox River - Little Rapids to Wrightstown, WI US4WI1HO - about 22 nm away
  5. Lake Michigan - Two Rivers, WI US4WI1HQ - about 22 nm away
  6. Lake Michigan - Offshore of Sheboygan, WI US4WI1FQ - 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
1.5 Mar 5, 2026 metadata.json