NOAA S-57 chart cell
Chesapeake Bay - Hacks Neck to Tangier Sound to Smith Point
US4VA40M
- Usage band
- Approach · code 4
- Current edition
- 35.0
- Features
- 1,138
- S-57 layers
- 43
- Published
- Mar 31, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 37.95829° N
- South
- 37.35920° N
- West
- 76.53698° W
- East
- 75.63015° W
- Center
- 37.65875° N, 76.08357° W
- Bounds area
- 1,550 sq nm
- Feature density
- 0.734 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 26.5
- Smallest layer
- 1
- Largest layer
- 326
- Area sq km
- 5,318
- Features per sq km
- 0.214
- COALNE Coastline 326
- LNDRGN Land region 166
- DEPARE Depth area 111
- DEPCNT Depth contour 111
- SLCONS Shoreline construction 56
- PILPNT 46
- RIVERS River 46
- DAYMAR 26
- BCNLAT Lateral beacon 24
- CBLOHD 24
- SEAARE Sea area 24
- OBSTRN Obstruction 22
- SBDARE Seabed area 19
- WRECKS Wreck 17
- BUAARE 16
- LAKARE 11
- LIGHTS Light 11
- M_QUAL Data quality 10
- LNDARE Land area 9
- CTNARE Caution area 8
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/US4VA40M.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4VA40M/35.0/US4VA40M.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4VA40M/35.0/US4VA40M.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4VA40M/35.0/US4VA40M.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4VA40M/35.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 35.0 | Mar 31, 2026 | metadata.json |