NOAA S-57 chart cell

Nahant Harbor - Nahant Bay to Broad Sound

US5BOSDE

Usage band
Harbor · code 5
Current edition
3.5
Features
748
S-57 layers
41
Published
Nov 12, 2025
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
42.45000° N
South
42.37500° N
West
70.95000° W
East
70.87500° W
Center
42.41250° N, 70.91250° W
Bounds area
15 sq nm
Feature density
49.9634 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
18.2
Smallest layer
1
Largest layer
217
Area sq km
51
Features per sq km
14.567
  1. UWTROC Underwater rock 217
  2. SBDARE Seabed area 137
  3. DEPCNT Depth contour 93
  4. DEPARE Depth area 79
  5. COALNE Coastline 67
  6. LNDARE Land area 23
  7. OBSTRN Obstruction 11
  8. SEAARE Sea area 11
  9. SLCONS Shoreline construction 11
  10. DRGARE 9
  11. BOYLAT Lateral buoy 8
  12. M_QUAL Data quality 8
  13. LNDRGN Land region 7
  14. SOUNDG Sounding 7
  15. LIGHTS Light 6
  16. LNDMRK 6
  17. WRECKS Wreck 5
  18. PIPSOL 4
  19. BCNLAT Lateral beacon 3
  20. DAYMAR 3

Nearby Chart Cells

Harbor usage band

  1. Massachusetts Bay US5BOSDF - about 3 nm away
  2. Chelsea River and Winthrop Beach to Lynn Harbor-Saugus River US5BOSDD - about 3 nm away
  3. Broad Sound and Nantasket Roads US5BOSCE - about 5 nm away
  4. Massachusetts Bay US5BOSCF - about 6 nm away
  5. President Roads to Boston Inner Harbor US5BOSCD - about 6 nm away
  6. Boston Inner Harbor to Mystic River and Chelsea River US5BOSDC - about 7 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
3.5 Nov 12, 2025 metadata.json