NOAA S-57 chart cell
Strait of Juan De Fuca Entrance
US4WA1IA
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 241
- S-57 layers
- 17
- Published
- Feb 5, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 48.30000° N
- South
- 48.00000° N
- West
- 125.40000° W
- East
- 125.10000° W
- Center
- 48.15000° N, 125.25000° W
- Bounds area
- 216 sq nm
- Feature density
- 1.1134 / sq nm
Chart Statistics
17 largest layers shown
- Average features per layer
- 14.2
- Smallest layer
- 1
- Largest layer
- 92
- Area sq km
- 742
- Features per sq km
- 0.32461
- DEPARE Depth area 92
- DEPCNT Depth contour 88
- SBDARE Seabed area 22
- M_QUAL Data quality 13
- SOUNDG Sounding 10
- SEAARE Sea area 3
- MIPARE 2
- RESARE 2
- CBLSUB 1
- CONZNE 1
- COSARE 1
- CTNARE Caution area 1
- EXEZNE 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- MAGVAR Magnetic variation 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/US4WA1IA.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4WA1IA/1.0/US4WA1IA.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4WA1IA/1.0/US4WA1IA.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4WA1IA/1.0/US4WA1IA.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4WA1IA/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Feb 5, 2026 | metadata.json |