NOAA S-57 chart cell
Portersville Bay
US5AL1EC
- Usage band
- Harbor · code 5
- Current edition
- 4.0
- Features
- 297
- S-57 layers
- 29
- Published
- Mar 26, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 30.37500° N
- South
- 30.30000° N
- West
- 88.27500° W
- East
- 88.20000° W
- Center
- 30.33750° N, 88.23750° W
- Bounds area
- 18 sq nm
- Feature density
- 16.9708 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 10.2
- Smallest layer
- 1
- Largest layer
- 41
- Area sq km
- 60
- Features per sq km
- 4.94788
- BCNSPP Special purpose beacon 41
- DEPARE Depth area 31
- DEPCNT Depth contour 28
- LIGHTS Light 28
- SLCONS Shoreline construction 23
- DAYMAR 21
- SBDARE Seabed area 21
- PILPNT 13
- M_QUAL Data quality 11
- COALNE Coastline 10
- OBSTRN Obstruction 8
- RIVERS River 8
- SOUNDG Sounding 8
- BCNLAT Lateral beacon 7
- DRGARE 6
- LNDARE Land area 6
- LNDRGN Land region 5
- SEAARE Sea area 4
- WRECKS Wreck 4
- FAIRWY Fairway 3
Nearby Chart Cells
Harbor 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/US5AL1EC.zip
- S-57 cell https://charts.openships.ai/noaa/s57/harbor/US5AL1EC/4.0/US5AL1EC.000
- GeoJSON https://charts.openships.ai/noaa/s57/harbor/US5AL1EC/4.0/US5AL1EC.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/harbor/US5AL1EC/4.0/US5AL1EC.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/harbor/US5AL1EC/4.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 4.0 | Mar 26, 2026 | metadata.json |