NOAA S-57 chart cell
North Atlantic Ocean - Townsends Inlet to Hereford Inlet and Delaware Bay
US4NJ1BC
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 1,054
- S-57 layers
- 41
- Published
- Mar 10, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 39.30000° N
- South
- 39.00000° N
- West
- 75.00000° W
- East
- 74.70000° W
- Center
- 39.15000° N, 74.85000° W
- Bounds area
- 252 sq nm
- Feature density
- 4.1892 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 25.7
- Smallest layer
- 1
- Largest layer
- 207
- Area sq km
- 863
- Features per sq km
- 1.22137
- RIVERS River 207
- COALNE Coastline 196
- LNDRGN Land region 135
- LNDARE Land area 100
- SLCONS Shoreline construction 52
- SEAARE Sea area 44
- DEPARE Depth area 40
- LAKARE 39
- DEPCNT Depth contour 34
- BUAARE 32
- SBDARE Seabed area 26
- BRIDGE 21
- CTNARE Caution area 15
- M_QUAL Data quality 15
- SOUNDG Sounding 15
- LNDMRK 13
- LIGHTS Light 8
- OBSTRN Obstruction 8
- SILTNK 7
- BUISGL 5
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/US4NJ1BC.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4NJ1BC/1.0/US4NJ1BC.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4NJ1BC/1.0/US4NJ1BC.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4NJ1BC/1.0/US4NJ1BC.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4NJ1BC/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Mar 10, 2026 | metadata.json |