NOAA S-57 chart cell
Charleston Harbor and Approaches
US4SC11M
- Usage band
- Approach · code 4
- Current edition
- 54.0
- Features
- 32
- S-57 layers
- 13
- Published
- Sep 29, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 32.94265° N
- South
- 32.35198° N
- West
- 80.46397° W
- East
- 79.52792° W
- Center
- 32.64732° N, 79.99594° W
- Bounds area
- 1,678 sq nm
- Feature density
- 0.0191 / sq nm
Chart Statistics
13 largest layers shown
- Average features per layer
- 2.5
- Smallest layer
- 1
- Largest layer
- 8
- Area sq km
- 5,756
- Features per sq km
- 0.00556
- DEPARE Depth area 8
- DEPCNT Depth contour 7
- M_COVR Coverage 2
- M_QUAL Data quality 2
- MAGVAR Magnetic variation 2
- RESARE 2
- SBDARE Seabed area 2
- SOUNDG Sounding 2
- CONZNE 1
- EXEZNE 1
- M_NPUB 1
- M_NSYS 1
- TESARE 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/US4SC11M.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4SC11M/54.0/US4SC11M.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4SC11M/54.0/US4SC11M.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4SC11M/54.0/US4SC11M.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4SC11M/54.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 54.0 | Sep 29, 2025 | metadata.json |