NOAA S-57 chart cell
Columbia River Entrance to Portland
US4OR1LI
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 1,444
- S-57 layers
- 56
- Published
- Apr 15, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 45.60000° N
- South
- 45.50000° N
- West
- 122.70000° W
- East
- 122.40000° W
- Center
- 45.55000° N, 122.55000° W
- Bounds area
- 76 sq nm
- Feature density
- 19.067 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 25.8
- Smallest layer
- 1
- Largest layer
- 228
- Area sq km
- 260
- Features per sq km
- 5.55904
- DEPCNT Depth contour 228
- DEPARE Depth area 200
- SLCONS Shoreline construction 194
- COALNE Coastline 136
- BUISGL 102
- PILPNT 100
- MORFAC 49
- LNDARE Land area 41
- LIGHTS Light 33
- OBSTRN Obstruction 32
- BRIDGE 27
- DAYMAR 20
- BCNSPP Special purpose beacon 19
- CBLOHD 18
- LNDMRK 17
- PYLONS 17
- UWTROC Underwater rock 17
- M_QUAL Data quality 12
- SLOTOP 12
- LNDRGN Land region 11
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/US4OR1LI.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4OR1LI/1.0/US4OR1LI.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4OR1LI/1.0/US4OR1LI.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4OR1LI/1.0/US4OR1LI.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4OR1LI/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Apr 15, 2026 | metadata.json |