NOAA S-57 chart cell
Alligator Bay and New River
US4NC1DE
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 134
- S-57 layers
- 17
- Published
- Mar 11, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 34.80000° N
- South
- 34.50000° N
- West
- 77.70000° W
- East
- 77.40000° W
- Center
- 34.65000° N, 77.55000° W
- Bounds area
- 267 sq nm
- Feature density
- 0.5021 / sq nm
Chart Statistics
17 largest layers shown
- Average features per layer
- 7.9
- Smallest layer
- 1
- Largest layer
- 36
- Area sq km
- 915
- Features per sq km
- 0.14638
- COALNE Coastline 36
- LNDARE Land area 29
- LNDRGN Land region 17
- SEAARE Sea area 14
- DEPARE Depth area 8
- M_QUAL Data quality 8
- CTNARE Caution area 7
- RIVERS River 4
- BRIDGE 2
- CBLOHD 2
- BUAARE 1
- FAIRWY Fairway 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- MAGVAR Magnetic variation 1
- SLCONS Shoreline construction 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/US4NC1DE.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4NC1DE/1.0/US4NC1DE.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4NC1DE/1.0/US4NC1DE.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4NC1DE/1.0/US4NC1DE.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4NC1DE/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Mar 11, 2026 | metadata.json |