NOAA S-57 chart cell

Arroyo Colorado - Port Harlingen Channel

US4TX1BA

Usage band
Approach · code 4
Current edition
2.2
Features
112
S-57 layers
28
Published
Jan 14, 2026
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
26.40000° N
South
26.10000° N
West
97.80000° W
East
97.50000° W
Center
26.25000° N, 97.65000° W
Bounds area
291 sq nm
Feature density
0.3849 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
4
Smallest layer
1
Largest layer
15
Area sq km
998
Features per sq km
0.11222
  1. RIVERS River 15
  2. BCNLAT Lateral beacon 12
  3. DAYMAR 12
  4. DRGARE 9
  5. BUAARE 8
  6. COALNE Coastline 8
  7. SLCONS Shoreline construction 8
  8. CBLOHD 5
  9. BRIDGE 3
  10. DISMAR 3
  11. MORFAC 3
  12. PILPNT 3
  13. SILTNK 3
  14. LAKARE 2
  15. LNDMRK 2
  16. M_QUAL Data quality 2
  17. MAGVAR Magnetic variation 2
  18. PIPARE 2
  19. BUISGL 1
  20. DEPARE Depth area 1

Nearby Chart Cells

Approach usage band

  1. Gulf Intracoastal Waterway - Southern Laguna Madre - Port Harlingen Channel US4TX1BB - about 16 nm away
  2. Gulf Intracoastal Waterway - Laguna Madre to Gulf of America including Port Mansfield Channel US4TX1CB - about 24 nm away
  3. Gulf Intracoastal Waterway - Southern Laguna Madre including Port Isabel and Port Brownsville US4TX1AB - about 24 nm away
  4. Laguna Madre and Gulf of America US4TX1BC - about 32 nm away
  5. Laguna Madre US4TX1EA - about 36 nm away
  6. Gulf of America US4TX1CC - about 37 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
2.2 Jan 14, 2026 metadata.json