NOAA S-57 chart cell
North Atlantic Ocean - Entrance to Charleston Harbor
US4SC1BP
- Usage band
- Approach · code 4
- Current edition
- 1.1
- Features
- 256
- S-57 layers
- 33
- Published
- Nov 26, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 32.70000° N
- South
- 32.40000° N
- West
- 79.80000° W
- East
- 79.50000° W
- Center
- 32.55000° N, 79.65000° W
- Bounds area
- 273 sq nm
- Feature density
- 0.9361 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 7.8
- Smallest layer
- 1
- Largest layer
- 56
- Area sq km
- 938
- Features per sq km
- 0.27292
- DEPCNT Depth contour 56
- DEPARE Depth area 52
- M_QUAL Data quality 27
- SBDARE Seabed area 22
- SOUNDG Sounding 17
- OBSTRN Obstruction 16
- LIGHTS Light 14
- BOYLAT Lateral buoy 11
- DRGARE 4
- WRECKS Wreck 4
- BOYSPP Special purpose buoy 3
- DMPGRD 3
- MIPARE 3
- PILBOP 3
- M_NPUB 2
- RESARE 2
- ADMARE 1
- BOYSAW 1
- C_AGGR 1
- CONZNE 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/US4SC1BP.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4SC1BP/1.1/US4SC1BP.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4SC1BP/1.1/US4SC1BP.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4SC1BP/1.1/US4SC1BP.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4SC1BP/1.1/US4SC1BP.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4SC1BP/1.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.1 | Nov 26, 2025 | metadata.json |