NOAA S-57 chart cell
York, Rappahannock, Piankatank, and Mattaponi Rivers
US4VA1DD
- Usage band
- Approach · code 4
- Current edition
- 1.2
- Features
- 3,984
- S-57 layers
- 47
- Published
- Apr 4, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 37.80000° N
- South
- 37.50000° N
- West
- 76.80000° W
- East
- 76.50000° W
- Center
- 37.65000° N, 76.65000° W
- Bounds area
- 257 sq nm
- Feature density
- 15.5094 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 84.8
- Smallest layer
- 1
- Largest layer
- 886
- Area sq km
- 881
- Features per sq km
- 4.52183
- COALNE Coastline 886
- SLCONS Shoreline construction 547
- LNDRGN Land region 490
- DEPCNT Depth contour 459
- DEPARE Depth area 421
- BUISGL 267
- RIVERS River 243
- PILPNT 127
- SBDARE Seabed area 56
- M_QUAL Data quality 54
- OBSTRN Obstruction 44
- SEAARE Sea area 43
- LNDARE Land area 39
- BUAARE 34
- DAYMAR 33
- BCNLAT Lateral beacon 32
- LAKARE 32
- SOUNDG Sounding 21
- WRECKS Wreck 20
- CBLOHD 19
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/US4VA1DD.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4VA1DD/1.2/US4VA1DD.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4VA1DD/1.2/US4VA1DD.001
- S-57 update 002 https://charts.openships.ai/noaa/s57/approach/US4VA1DD/1.2/US4VA1DD.002
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4VA1DD/1.2/US4VA1DD.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4VA1DD/1.2/US4VA1DD.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4VA1DD/1.2/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.2 | Apr 4, 2025 | metadata.json |