Cable & pipeline work in the North Atlantic Ocean

Cable laying, pipeline and seismic operations.

in force
13
last 12 months
13
vs previous 12 (2)
+550%
since 1998
1,584

Coverage note: the NGA archive ends 2024-05 and live collection began 2026-08-17. Warnings issued in between are here only if they were still in force when collection started, so 2024–2026 are under-counted.

In force now · 13

  1. HYDROLANT 1575/26in force2026-08-14
    Underwater operations by cableship Ile d'Yeu continue daily until 13 September along a trackline in the South Atlantic off Brazil; wide berth requested.
    South Atlantic · Brazil
  2. NAVAREA IV 789/26in force2026-08-14
    Underwater operations by cable ship ILE D'YEU along trackline in South Atlantic off Brazil, daily until 13 September, wide berth requested.
    South Atlantic · Brazil
  3. HYDROLANT 1568/26in force2026-08-13
    Cable operations by ship ILE D OUESSANT occur from 15 to 20 August in an area near Canary Islands; wide berth requested.
    North Atlantic · Canary Islands
  4. NAVAREA IV 778/26in force2026-08-11
    Cable ship Cable Vigilance is performing cable operations in the North Atlantic from August 15 to 28, 2026, requesting one mile berth.
    North Atlantic
  5. NAVAREA IV 729/26in force2026-07-26
    Cable operations by cableship Pierre de Fermat are in progress until 25 August between Aruba and Florida; wide berth requested.
    Caribbean Sea · North Atlantic
  6. NAVAREA IV 677/26in force2026-07-10
    Cable operations by cable ship Reliance are in progress until 22 August along a trackline from 21-58.68N 044-28.46W to 30-50.64N 061-00.22W, requesting a two-mile berth.
  7. NAVAREA IV 666/26in force2026-07-08
    In the North Atlantic near Trinidad and Tobago, pipeline operations by vessel Seven Pegasus continue until 29 August 22:00 UTC; 500-meter berth requested.
    North Atlantic
  8. NAVAREA IV 663/26in force2026-07-07
    Cable ship Ile de Molene is doing cable operations off Trinidad and Tobago from July 10 to August 15; one-mile berth requested.
    Atlantic Ocean · Caribbean Sea
  9. NAVAREA IV 659/26in force2026-07-05
    Cable operations by ship Ile d'Yeu from 8 July to 31 August in North Atlantic off French Guiana, one mile berth requested.
    North Atlantic · French Guiana
  10. NAVAREA IV 658/26in force2026-07-05
    Pipeline operations by vessel Saipem Constellation continue until 31 December off Guyana; wide berth requested.
    North Atlantic · Guyana
  11. NAVAREA IV 649/26in force2026-07-02
    Pipeline operations are in progress until 10:00 UTC on October 20 by vessel DLV 2000 near Trinidad and Tobago, with 500-meter berth requested.
    Caribbean Sea
  12. NAVAREA IV 640/26in force2026-06-30
    Cable operations are in progress until August 31 in an area off French Guiana; one mile berth requested.
    North Atlantic · French Guiana
  13. NAVAREA IV 7/26in force2026-01-02
    Pipeline operations are in progress in the North Atlantic through December 31, 2026, by multiple vessels; wide berth is requested.
    North Atlantic

Longest in force

  1. NAVAREA IV 7/26in force2026-01-02 · 232 d
    Pipeline operations are in progress in the North Atlantic through December 31, 2026, by multiple vessels; wide berth is requested.
    North Atlantic
  2. NAVAREA IV 640/26in force2026-06-30 · 53 d
    Cable operations are in progress until August 31 in an area off French Guiana; one mile berth requested.
    North Atlantic · French Guiana
  3. NAVAREA IV 649/26in force2026-07-02 · 51 d
    Pipeline operations are in progress until 10:00 UTC on October 20 by vessel DLV 2000 near Trinidad and Tobago, with 500-meter berth requested.
    Caribbean Sea
  4. NAVAREA IV 658/26in force2026-07-05 · 49 d
    Pipeline operations by vessel Saipem Constellation continue until 31 December off Guyana; wide berth requested.
    North Atlantic · Guyana
  5. NAVAREA IV 659/26in force2026-07-05 · 48 d
    Cable operations by ship Ile d'Yeu from 8 July to 31 August in North Atlantic off French Guiana, one mile berth requested.
    North Atlantic · French Guiana

By year

98
99
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
26

By month (all years)

J
F
M
A
M
J
J
A
S
O
N
D

Other hazards in the North Atlantic Ocean

Archive · 1,571 cancelled

  1. HYDROLANT 802/991999-04-23 → 1999-04-30
    Cable operations in progress until 29 apr by cableship teneo between 38-40.8N 009-20.1W and 35-52.7N 010-35.0W
  2. HYDROLANT 696/991999-04-09 → 1999-04-23
    Underwater cable operations 091800Z apr until further notice by cableship teneo with submersible along…
  3. HYDROLANT 674/991999-04-07 → 1999-04-09
    Cable operations in progress until further notice by M/V ulysse in vicinity of trackline joining 49-17N…
  4. HYDROLANT 647/991999-04-04 → 1999-04-07
    Cable operations in progress until further notice by M/V ulysse in vicinity of trackline between 42-24N…
  5. NAVAREA IV 81/991999-03-31 → 1999-04-26
    Underwater cable operations 04 apr until further notice by cableship fresnel along a trackline joining…
  6. NAVAREA IV 77/991999-03-23 → 1999-04-05
    Cable operations 24 mar thru 04 apr by cableship spirit river between 04-56N 052-21W and 05-54N 051-35W
  7. HYDROLANT 458/991999-03-07 → 1999-03-11
    Cable laying operations 072000Z mar until further notice by cableship teliri along trackline joining 36-07N…
  8. HYDROLANT 397/991999-02-24 → 1999-03-07
    Cable laying operations 260800Z feb until further notice by cableship teliri along trackline joining 38-40N…
  9. HYDROLANT 364/991999-02-20 → 1999-03-07
    Cable operations 210200Z feb until further notice by M/V atlantida along trackline joining 35-55.3N…
  10. HYDROLANT 316/991999-02-11 → 1999-02-14
    Cable operations in progress until further notice by cableship iris between 59-57N 003-18W and 59-58N 005-00W
    Shetland Islands
  11. HYDROLANT 250/991999-02-03 → 1999-02-09
    Cable operations 031800Z to 091800Z feb by cableship teliri along trackline between 36-12N 006-35W and…
  12. HYDROLANT 222/991999-02-01 → 1999-02-02
    Seismic survey 01 and 02 feb by M/V noruega along trackline between 41-54.0N 009-00.0W and 41-54.0N 010-28.7W
  13. HYDROLANT 188/991999-01-28 → 1999-02-02
    Cable operations in progress until further notice by M/V highland fortress between 59-55N 006-28W and 59-56N…
  14. HYDROLANT 170/991999-01-26 → 1999-02-02
    Cable operations in progress until further notice by cableship iris along trackline joining 59-33N 000-28W,…
  15. HYDROLANT 83/991999-01-14 → 1999-01-19
    Underwater cable operations in progress until further notice by cableship teneo in vicinity 35-48N 006-46W
  16. HYDROLANT 44/991999-01-08 → 1999-01-11
    Cable operations in progress until further notice by cableship iris in vicinity of trackline between 59-57N…
  17. HYDROLANT 31/991999-01-07 → 1999-01-08
    Underwater operations in progress until further notice by cableship iris between 59-57N 003-18W and 59-57N…
  18. HYDROLANT 20/991999-01-05 → 1999-01-07
    Underwater operations in progress until further notice by cableship iris between 59-49N 002-08W and 59-47N…
  19. HYDROLANT 8/991999-01-03 → 1999-01-14
    Cable operations 050200Z to 140800Z jan by M/V teleri with submersible along trackline joining 36-17.00N…
  20. HYDROLANT 2495/981998-12-31 → 1999-01-02
    Underwater operations in progress until further notice by cableship iris between 59-47N 001-56W and 59-49N…
  21. HYDROLANT 2490/981998-12-31 → 1999-01-03
    Cable operations 03 jan thru 26 mar by cableships certamen, strakhov and teleri along trackline between…

Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts and your national MSI service.

Cable & pipeline work in the North Atlantic Ocean — page 32 · seahazards