NOAA S-57 chart cell
Northern Puget Sound
US4WA1HK
- Usage band
- Approach · code 4
- Current edition
- 1.2
- Features
- 1,898
- S-57 layers
- 59
- Published
- Feb 4, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 48.00000° N
- South
- 47.70000° N
- West
- 122.40000° W
- East
- 122.10000° W
- Center
- 47.85000° N, 122.25000° W
- Bounds area
- 218 sq nm
- Feature density
- 8.7176 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 32.2
- Smallest layer
- 1
- Largest layer
- 382
- Area sq km
- 747
- Features per sq km
- 2.54163
- SLCONS Shoreline construction 382
- DEPARE Depth area 211
- DEPCNT Depth contour 197
- COALNE Coastline 185
- UWTROC Underwater rock 107
- BUISGL 83
- SBDARE Seabed area 74
- PILPNT 66
- OBSTRN Obstruction 64
- MORFAC 51
- SLOTOP 47
- PONTON 37
- BUAARE 30
- LIGHTS Light 29
- SOUNDG Sounding 27
- M_QUAL Data quality 26
- WEDKLP 25
- BCNSPP Special purpose beacon 22
- PIPSOL 22
- LNDRGN Land region 19
Nearby Chart Cells
Approach 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.
- Original NOAA ZIP archive https://www.charts.noaa.gov/ENCs/US4WA1HK.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4WA1HK/1.2/US4WA1HK.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4WA1HK/1.2/US4WA1HK.001
- S-57 update 002 https://charts.openships.ai/noaa/s57/approach/US4WA1HK/1.2/US4WA1HK.002
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4WA1HK/1.2/US4WA1HK.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4WA1HK/1.2/US4WA1HK.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4WA1HK/1.2/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.2 | Feb 4, 2026 | metadata.json |