NOAA S-57 chart cell

Whale Branch to Broad River

US4SC1BL

Usage band
Approach · code 4
Current edition
1.1
Features
2,635
S-57 layers
34
Published
Jun 5, 2026
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
32.70000° N
South
32.40000° N
West
81.00000° W
East
80.70000° W
Center
32.55000° N, 80.85000° W
Bounds area
273 sq nm
Feature density
9.6352 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
77.5
Smallest layer
1
Largest layer
623
Area sq km
938
Features per sq km
2.80918
  1. DEPCNT Depth contour 623
  2. RIVERS River 571
  3. DEPARE Depth area 540
  4. COALNE Coastline 297
  5. LNDRGN Land region 207
  6. SLCONS Shoreline construction 97
  7. LNDARE Land area 77
  8. SBDARE Seabed area 43
  9. DYKCON 24
  10. SEAARE Sea area 23
  11. CBLOHD 22
  12. BRIDGE 17
  13. OBSTRN Obstruction 15
  14. BUISGL 13
  15. M_QUAL Data quality 13
  16. LAKARE 11
  17. LNDMRK 6
  18. SOUNDG Sounding 6
  19. BUAARE 5
  20. PILPNT 5

Nearby Chart Cells

Approach usage band

  1. Saint Helena Sound, Coosaw, and Morgan Rivers US4SC1BM - about 15 nm away
  2. Port Royal Sound to Broad River and Calibogue Sound US4SC1AL - about 18 nm away
  3. Edisto River US4SC1CM - about 24 nm away
  4. Approaches to Port Royal Sound US4SC1AM - about 24 nm away
  5. North Atlantic Ocean - Approaches to Saint Helena Sound and North Edisto River US4SC1BN - about 30 nm away
  6. Wadmalaw and Stono Rivers US4SC1CN - about 35 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
1.1 Jun 5, 2026 metadata.json