NOAA S-57 chart cell
Wide Bay and Portage Bay
US4AK3TZ
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 1,544
- S-57 layers
- 29
- Published
- Apr 10, 2024
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 57.60000° N
- South
- 57.30000° N
- West
- 156.60000° W
- East
- 156.00000° W
- Center
- 57.45000° N, 156.30000° W
- Bounds area
- 349 sq nm
- Feature density
- 4.4226 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 53.2
- Smallest layer
- 1
- Largest layer
- 385
- Area sq km
- 1,197
- Features per sq km
- 1.28942
- DEPCNT Depth contour 385
- DEPARE Depth area 349
- UWTROC Underwater rock 344
- SBDARE Seabed area 213
- RIVERS River 46
- OBSTRN Obstruction 39
- LNDARE Land area 37
- LNDELV 36
- COALNE Coastline 33
- SOUNDG Sounding 10
- M_QUAL Data quality 8
- LNDRGN Land region 6
- SEAARE Sea area 6
- BUISGL 5
- SLCONS Shoreline construction 5
- WEDKLP 4
- MAGVAR Magnetic variation 3
- TESARE 3
- BUAARE 2
- ADMARE 1
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/US4AK3TZ.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK3TZ/1.0/US4AK3TZ.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK3TZ/1.0/US4AK3TZ.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK3TZ/1.0/US4AK3TZ.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK3TZ/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Apr 10, 2024 | metadata.json |