NOAA S-57 chart cell
Strait of Juan De Fuca Entrance
US4WA1IC
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 974
- S-57 layers
- 24
- Published
- Feb 5, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 48.30000° N
- South
- 48.00000° N
- West
- 124.80000° W
- East
- 124.50000° W
- Center
- 48.15000° N, 124.65000° W
- Bounds area
- 216 sq nm
- Feature density
- 4.4997 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 40.6
- Smallest layer
- 1
- Largest layer
- 201
- Area sq km
- 742
- Features per sq km
- 1.3119
- UWTROC Underwater rock 201
- LNDARE Land area 197
- COALNE Coastline 196
- DEPCNT Depth contour 121
- DEPARE Depth area 77
- SBDARE Seabed area 74
- LNDELV 27
- OBSTRN Obstruction 26
- M_QUAL Data quality 14
- SOUNDG Sounding 13
- WEDKLP 6
- LNDRGN Land region 4
- RESARE 4
- ADMARE 2
- MAGVAR Magnetic variation 2
- SEAARE Sea area 2
- BUAARE 1
- CTNARE Caution area 1
- M_COVR Coverage 1
- M_NPUB 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/US4WA1IC.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4WA1IC/1.0/US4WA1IC.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4WA1IC/1.0/US4WA1IC.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4WA1IC/1.0/US4WA1IC.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4WA1IC/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Feb 5, 2026 | metadata.json |