NOAA S-57 chart cell
Pamunkey and Mattaponi Rivers
US4VA1DC
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 2,806
- S-57 layers
- 37
- Published
- Nov 25, 2024
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 37.80000° N
- South
- 37.50000° N
- West
- 77.10000° W
- East
- 76.80000° W
- Center
- 37.65000° N, 76.95000° W
- Bounds area
- 257 sq nm
- Feature density
- 10.9236 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 75.8
- Smallest layer
- 1
- Largest layer
- 902
- Area sq km
- 881
- Features per sq km
- 3.1848
- RIVERS River 902
- DEPCNT Depth contour 437
- DEPARE Depth area 405
- COALNE Coastline 287
- LNDRGN Land region 213
- SLCONS Shoreline construction 189
- OBSTRN Obstruction 75
- LNDARE Land area 62
- SBDARE Seabed area 44
- PILPNT 37
- SEAARE Sea area 35
- BUAARE 29
- BRIDGE 21
- LAKARE 14
- CBLOHD 8
- M_QUAL Data quality 6
- WRECKS Wreck 6
- SOUNDG Sounding 5
- CTNARE Caution area 4
- C_ASSO 3
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/US4VA1DC.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4VA1DC/1.0/US4VA1DC.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4VA1DC/1.0/US4VA1DC.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4VA1DC/1.0/US4VA1DC.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4VA1DC/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Nov 25, 2024 | metadata.json |