NOAA S-57 chart cell

Chesapeake Bay - Rappahannock River Entrance and Piankatank River

US4VA1DE

Usage band
Approach · code 4
Current edition
1.8
Features
5,777
S-57 layers
49
Published
Mar 30, 2026
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
37.80000° N
South
37.50000° N
West
76.50000° W
East
76.20000° W
Center
37.65000° N, 76.35000° W
Bounds area
257 sq nm
Feature density
22.4895 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
117.9
Smallest layer
1
Largest layer
1,201
Area sq km
881
Features per sq km
6.55688
  1. COALNE Coastline 1,201
  2. SLCONS Shoreline construction 1,164
  3. LNDRGN Land region 591
  4. DEPCNT Depth contour 533
  5. DEPARE Depth area 409
  6. PILPNT 266
  7. RIVERS River 226
  8. SBDARE Seabed area 190
  9. OBSTRN Obstruction 137
  10. LNDARE Land area 122
  11. DAYMAR 119
  12. BCNLAT Lateral beacon 109
  13. SEAARE Sea area 94
  14. CBLOHD 87
  15. M_QUAL Data quality 77
  16. BCNSPP Special purpose beacon 64
  17. LAKARE 63
  18. LIGHTS Light 62
  19. WRECKS Wreck 50
  20. BUAARE 36

Nearby Chart Cells

Approach usage band

  1. Chesapeake Bay - Hacks Neck to Tangier Sound to Smith Point US4VA40M - about 13 nm away
  2. Chesapeake Bay - Rappahannock Shoal Channel US4VA1DF - about 14 nm away
  3. York, Rappahannock, Piankatank, and Mattaponi Rivers US4VA1DD - about 14 nm away
  4. Chesapeake Bay - Mobjack Bay and York River US4VA1CE - about 18 nm away
  5. Chesapeake Bay - Tangier Sound US4MD1AE - about 23 nm away
  6. Chesapeake Bay - Cape Charles to Silver Beach US4VA1CF - about 23 nm away

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.

Editions

Edition Published Metadata
1.8 Mar 30, 2026 metadata.json