NOAA S-57 chart cell
Icy Strait, Excursion Inlet, and Lynn Canal
US4AK5RI
- Usage band
- Approach · code 4
- Current edition
- 1.1
- Features
- 1,482
- S-57 layers
- 34
- Published
- Feb 27, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 58.50000° N
- South
- 58.20000° N
- West
- 135.60000° W
- East
- 135.00000° W
- Center
- 58.35000° N, 135.30000° W
- Bounds area
- 340 sq nm
- Feature density
- 4.3526 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 43.6
- Smallest layer
- 1
- Largest layer
- 364
- Area sq km
- 1,168
- Features per sq km
- 1.26902
- UWTROC Underwater rock 364
- DEPCNT Depth contour 252
- SBDARE Seabed area 225
- DEPARE Depth area 222
- COALNE Coastline 140
- RIVERS River 93
- LNDARE Land area 47
- LNDELV 26
- WEDKLP 19
- OBSTRN Obstruction 16
- M_QUAL Data quality 11
- SLCONS Shoreline construction 11
- SEAARE Sea area 10
- PILPNT 9
- CTNARE Caution area 5
- LNDRGN Land region 5
- SLOGRD 4
- SOUNDG Sounding 4
- CBLSUB 3
- MAGVAR Magnetic variation 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/US4AK5RI.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4AK5RI/1.1/US4AK5RI.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4AK5RI/1.1/US4AK5RI.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK5RI/1.1/US4AK5RI.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK5RI/1.1/US4AK5RI.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK5RI/1.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.1 | Feb 27, 2026 | metadata.json |