NOAA S-57 chart cell

Approaches to Chesapeake Bay

US4VA1BH

Usage band
Approach · code 4
Current edition
2.30
Features
359
S-57 layers
23
Published
Mar 24, 2026
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
37.20000° N
South
36.90000° N
West
75.60000° W
East
75.30000° W
Center
37.05000° N, 75.45000° W
Bounds area
259 sq nm
Feature density
1.3864 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
15.6
Smallest layer
1
Largest layer
67
Area sq km
888
Features per sq km
0.40422
  1. LIGHTS Light 67
  2. LNDARE Land area 66
  3. LNDMRK 66
  4. SBDARE Seabed area 43
  5. DEPARE Depth area 34
  6. DEPCNT Depth contour 33
  7. M_QUAL Data quality 15
  8. SOUNDG Sounding 8
  9. WRECKS Wreck 5
  10. CTNARE Caution area 3
  11. MAGVAR Magnetic variation 3
  12. DMPGRD 2
  13. M_NPUB 2
  14. RESARE 2
  15. SEAARE Sea area 2
  16. CONZNE 1
  17. COSARE 1
  18. EXEZNE 1
  19. M_COVR Coverage 1
  20. M_NSYS 1

Nearby Chart Cells

Approach usage band

  1. Approaches to Chesapeake Bay US4VA1BI - about 14 nm away
  2. Approaches to Chesapeake Bay US4VA1BG - about 14 nm away
  3. Approaches to Chesapeake Bay US4VA1AH - about 18 nm away
  4. Approaches to Quinby and Great Machipongo Inlets US4VA1CH - about 18 nm away
  5. North Atlantic Ocean US4VA1CI - about 23 nm away
  6. North Atlantic Ocean - Quinby Inlet, Great Machipongo Inlet and Ship Shoal Inlet US4VA1CG - 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
2.30 Mar 24, 2026 metadata.json