NOAA S-57 chart cell
Puget Sound - Northern Part
US4WA11M
- Usage band
- Approach · code 4
- Current edition
- 52.1
- Features
- 34
- S-57 layers
- 20
- Published
- Feb 9, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 48.35584° N
- South
- 47.55634° N
- West
- 123.03627° W
- East
- 122.10709° W
- Center
- 47.95609° N, 122.57168° W
- Bounds area
- 1,793 sq nm
- Feature density
- 0.019 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 1.7
- Smallest layer
- 1
- Largest layer
- 3
- Area sq km
- 6,151
- Features per sq km
- 0.00553
- CBLSUB 3
- DEPARE Depth area 3
- M_QUAL Data quality 3
- TSSBND 3
- TSSLPT 3
- CTNARE Caution area 2
- DEPCNT Depth contour 2
- M_COVR Coverage 2
- SEAARE Sea area 2
- C_AGGR 1
- COALNE Coastline 1
- LNDARE Land area 1
- M_NPUB 1
- M_NSYS 1
- MAGVAR Magnetic variation 1
- PRCARE 1
- RESARE 1
- SOUNDG Sounding 1
- TSEZNE 1
- UWTROC Underwater rock 1
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/US4WA11M.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4WA11M/52.1/US4WA11M.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4WA11M/52.1/US4WA11M.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4WA11M/52.1/US4WA11M.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4WA11M/52.1/US4WA11M.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4WA11M/52.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 52.1 | Feb 9, 2026 | metadata.json |