NOAA S-57 chart cell
Columbia River Entrance to Portland
US4OR1NH
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 1,904
- S-57 layers
- 58
- Published
- Apr 15, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 46.20000° N
- South
- 45.90000° N
- West
- 123.00000° W
- East
- 122.70000° W
- Center
- 46.05000° N, 122.85000° W
- Bounds area
- 225 sq nm
- Feature density
- 8.4559 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 32.8
- Smallest layer
- 1
- Largest layer
- 318
- Area sq km
- 772
- Features per sq km
- 2.46533
- DEPCNT Depth contour 318
- DEPARE Depth area 305
- SLCONS Shoreline construction 240
- PILPNT 233
- COALNE Coastline 105
- LIGHTS Light 74
- MORFAC 54
- DAYMAR 51
- M_QUAL Data quality 50
- LNDARE Land area 42
- OBSTRN Obstruction 41
- RIVERS River 38
- LNDRGN Land region 35
- BCNSPP Special purpose beacon 28
- BUISGL 25
- SOUNDG Sounding 25
- BCNLAT Lateral beacon 20
- BRIDGE 20
- SBDARE Seabed area 18
- LAKARE 16
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/US4OR1NH.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4OR1NH/1.0/US4OR1NH.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4OR1NH/1.0/US4OR1NH.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4OR1NH/1.0/US4OR1NH.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4OR1NH/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Apr 15, 2026 | metadata.json |