NOAA S-57 chart cell
Alaska
US4AK5NI
- Usage band
- Approach · code 4
- Current edition
- 1.1
- Features
- 8,338
- S-57 layers
- 54
- Published
- Mar 2, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 57.30000° N
- South
- 57.00000° N
- West
- 135.60000° W
- East
- 135.00000° W
- Center
- 57.15000° N, 135.30000° W
- Bounds area
- 352 sq nm
- Feature density
- 23.6891 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 154.4
- Smallest layer
- 1
- Largest layer
- 1,956
- Area sq km
- 1,207
- Features per sq km
- 6.90662
- DEPCNT Depth contour 1,956
- DEPARE Depth area 1,624
- SBDARE Seabed area 954
- UWTROC Underwater rock 945
- COALNE Coastline 792
- LNDARE Land area 715
- SLCONS Shoreline construction 152
- LNDELV 145
- BUISGL 121
- OBSTRN Obstruction 118
- MORFAC 110
- WEDKLP 105
- LNDRGN Land region 77
- RIVERS River 53
- PONTON 48
- SEAARE Sea area 45
- LIGHTS Light 40
- PILPNT 32
- SLOTOP 32
- SLOGRD 28
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/US4AK5NI.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4AK5NI/1.1/US4AK5NI.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4AK5NI/1.1/US4AK5NI.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK5NI/1.1/US4AK5NI.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK5NI/1.1/US4AK5NI.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK5NI/1.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.1 | Mar 2, 2026 | metadata.json |