NOAA S-57 chart cell
North Atlantic Ocean - Approaches to Delaware Bay
US4NJ1AD
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 235
- S-57 layers
- 27
- Published
- Jun 26, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 39.00000° N
- South
- 38.70000° N
- West
- 74.70000° W
- East
- 74.40000° W
- Center
- 38.85000° N, 74.55000° W
- Bounds area
- 253 sq nm
- Feature density
- 0.9301 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 8.7
- Smallest layer
- 1
- Largest layer
- 58
- Area sq km
- 867
- Features per sq km
- 0.27117
- DEPARE Depth area 58
- DEPCNT Depth contour 55
- SBDARE Seabed area 55
- M_QUAL Data quality 15
- WRECKS Wreck 10
- OBSTRN Obstruction 6
- SEAARE Sea area 4
- SOUNDG Sounding 4
- LIGHTS Light 3
- MAGVAR Magnetic variation 3
- BOYLAT Lateral buoy 2
- C_AGGR 2
- M_NPUB 2
- TSSBND 2
- TSSLPT 2
- BOYSPP Special purpose buoy 1
- C_ASSO 1
- CBLARE 1
- CONZNE 1
- CTNARE Caution area 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/US4NJ1AD.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4NJ1AD/1.0/US4NJ1AD.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4NJ1AD/1.0/US4NJ1AD.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4NJ1AD/1.0/US4NJ1AD.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4NJ1AD/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Jun 26, 2025 | metadata.json |