NOAA S-57 chart cell
Franklin D. Roosevelt Lake, WA
US4WA1IY
- Usage band
- Approach · code 4
- Current edition
- 2.0
- Features
- 257
- S-57 layers
- 29
- Published
- Jun 11, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 48.30000° N
- South
- 48.00000° N
- West
- 118.20000° W
- East
- 117.90000° W
- Center
- 48.15000° N, 118.05000° W
- Bounds area
- 216 sq nm
- Feature density
- 1.1873 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 8.9
- Smallest layer
- 1
- Largest layer
- 109
- Area sq km
- 742
- Features per sq km
- 0.34616
- COALNE Coastline 109
- SLOTOP 24
- DEPARE Depth area 23
- OBSTRN Obstruction 19
- LNDARE Land area 10
- SBDARE Seabed area 9
- LNDELV 7
- BCNSPP Special purpose beacon 6
- BUISGL 6
- LIGHTS Light 6
- DAYMAR 4
- RIVERS River 4
- SEAARE Sea area 4
- DEPCNT Depth contour 3
- DISMAR 3
- BUAARE 2
- LNDMRK 2
- LNDRGN Land region 2
- PYLONS 2
- SOUNDG Sounding 2
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/US4WA1IY.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4WA1IY/2.0/US4WA1IY.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4WA1IY/2.0/US4WA1IY.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4WA1IY/2.0/US4WA1IY.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4WA1IY/2.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.0 | Jun 11, 2025 | metadata.json |