NOAA S-57 chart cell
Willapa Bay, WA
US4WA1DE
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 1,581
- S-57 layers
- 48
- Published
- Nov 22, 2024
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 46.80000° N
- South
- 46.50000° N
- West
- 124.20000° W
- East
- 123.90000° W
- Center
- 46.65000° N, 124.05000° W
- Bounds area
- 223 sq nm
- Feature density
- 7.0989 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 32.9
- Smallest layer
- 1
- Largest layer
- 388
- Area sq km
- 764
- Features per sq km
- 2.0697
- DEPCNT Depth contour 388
- DEPARE Depth area 336
- COALNE Coastline 123
- SBDARE Seabed area 94
- OBSTRN Obstruction 81
- LNDRGN Land region 78
- SLCONS Shoreline construction 58
- BCNLAT Lateral beacon 52
- DAYMAR 52
- LNDARE Land area 49
- RIVERS River 43
- M_QUAL Data quality 31
- PILPNT 28
- SEAARE Sea area 23
- MARCUL 21
- LIGHTS Light 19
- PONTON 12
- CTNARE Caution area 10
- WATTUR 10
- SOUNDG Sounding 9
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/US4WA1DE.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4WA1DE/1.0/US4WA1DE.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4WA1DE/1.0/US4WA1DE.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4WA1DE/1.0/US4WA1DE.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4WA1DE/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Nov 22, 2024 | metadata.json |