NOAA S-57 chart cell
Franklin D. Roosevelt Lake, WA
US4WA1HY
- Usage band
- Approach · code 4
- Current edition
- 2.0
- Features
- 216
- S-57 layers
- 30
- Published
- Jun 11, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 48.00000° N
- South
- 47.70000° N
- West
- 118.20000° W
- East
- 117.90000° W
- Center
- 47.85000° N, 118.05000° W
- Bounds area
- 218 sq nm
- Feature density
- 0.9921 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 7.2
- Smallest layer
- 1
- Largest layer
- 42
- Area sq km
- 747
- Features per sq km
- 0.28925
- COALNE Coastline 42
- DEPCNT Depth contour 37
- DEPARE Depth area 35
- SLOTOP 24
- RIVERS River 17
- VEGATN 8
- DISMAR 5
- LNDARE Land area 5
- LNDELV 5
- BOYLAT Lateral buoy 4
- SBDARE Seabed area 4
- SLCONS Shoreline construction 4
- SEAARE Sea area 3
- BOYSPP Special purpose buoy 2
- DAYMAR 2
- LIGHTS Light 2
- MAGVAR Magnetic variation 2
- SOUNDG Sounding 2
- UWTROC Underwater rock 2
- BCNLAT Lateral beacon 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/US4WA1HY.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4WA1HY/2.0/US4WA1HY.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4WA1HY/2.0/US4WA1HY.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4WA1HY/2.0/US4WA1HY.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4WA1HY/2.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.0 | Jun 11, 2025 | metadata.json |