NOAA S-57 chart cell
Franklin D. Roosevelt Lake, WA
US4WA1IW
- Usage band
- Approach · code 4
- Current edition
- 2.0
- Features
- 98
- S-57 layers
- 19
- Published
- Jun 11, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 48.30000° N
- South
- 48.00000° N
- West
- 118.80000° W
- East
- 118.50000° W
- Center
- 48.15000° N, 118.65000° W
- Bounds area
- 216 sq nm
- Feature density
- 0.4527 / sq nm
Chart Statistics
19 largest layers shown
- Average features per layer
- 5.2
- Smallest layer
- 1
- Largest layer
- 21
- Area sq km
- 742
- Features per sq km
- 0.132
- COALNE Coastline 21
- DEPCNT Depth contour 18
- DEPARE Depth area 17
- SLOTOP 11
- RIVERS River 6
- LNDARE Land area 5
- OBSTRN Obstruction 5
- SLCONS Shoreline construction 3
- MAGVAR Magnetic variation 2
- CBLOHD 1
- LNDMRK 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- M_QUAL Data quality 1
- SBDARE Seabed area 1
- SEAARE Sea area 1
- SOUNDG Sounding 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/US4WA1IW.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4WA1IW/2.0/US4WA1IW.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4WA1IW/2.0/US4WA1IW.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4WA1IW/2.0/US4WA1IW.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4WA1IW/2.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.0 | Jun 11, 2025 | metadata.json |