The Northwestern Passages

IHO sea area 14 · -128° to -69° E, 64° to 82° N

in force
3
last 12 months
3
since 2006
212
categories
6

In force now · 3

  1. HYDROARC 178/25 · Wrecks2025-10-01
    Depths reported in Franklin Strait and McClintock Channel, Canada, range from 11.3 to 29.3 meters.
  2. HYDROARC 175/25 · Wrecks2025-09-29
    A reported depth of 33.6 meters in McClintock Channel, Canada at 76-40.36N 102-16.62W.
  3. HYDROARC 148/25 · Wrecks2025-08-31
    A depth of 13.6 meters is reported in Lancaster Sound, Canada at 74-38.63N 091-20.54W.

Longest in force

  1. HYDROARC 148/25 · Wrecks2025-08-31
    A depth of 13.6 meters is reported in Lancaster Sound, Canada at 74-38.63N 091-20.54W.
  2. HYDROARC 175/25 · Wrecks2025-09-29
    A reported depth of 33.6 meters in McClintock Channel, Canada at 76-40.36N 102-16.62W.
  3. HYDROARC 178/25 · Wrecks2025-10-01
    Depths reported in Franklin Strait and McClintock Channel, Canada, range from 11.3 to 29.3 meters.

By year

06
08
10
11
12
13
14
15
16
17
18
19
20
21
22
23
25

By month (all years)

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

By category · since 1997

Nav aids6732%
Wrecks4823%
Other4722%
Surveys4722%
Exercises21%
Derelicts10%

Archive · 209 cancelled

  1. HYDROARC 127/11 · Surveys2011-08-13 → 2012-08-21
    Nga chart 15899 (1ST ed)
  2. HYDROARC 122/11 · Other2011-08-04 → 2011-08-16
    Iqaluit mcts centre transmitter resolute 74-44.8N 095-00.2W inoperative
  3. HYDROARC 102/11 · Other2011-07-16 → 2011-07-28
    Iqaluit mcts remote station, resolute 74-44.8N 095-00.2W, unreliable 0300Z to 1300Z daily
  4. HYDROARC 80/10 · Surveys2010-09-12 → 2010-09-15
    Salvage operations in progress until further notice in 67-58.27N 112-40.34W
  5. HYDROARC 73/10 · Wrecks2010-09-06 → 2011-04-30
    Nga chart 15953 (0 ed)
  6. HYDROARC 71/10 · Wrecks2010-09-05 → 2014-06-01
    Coronation Gulf
  7. HYDROARC 70/10 · Surveys2010-08-30 → 2010-10-15
    Nga chart 15881 (0 ed)
  8. HYDROARC 67/10 · Surveys2010-08-19 → 2010-10-15
    Nga chart 15880 (0 ed)
  9. HYDROARC 66/10 · Surveys2010-08-19 → 2010-10-15
    Nga chart 15880 (0 ed)
  10. HYDROARC 65/10 · Exercises2010-08-18 → 2010-08-21
    Gunnery exercises 211200Z to 211300Z aug within ten miles of 74-22.1N 082-13.5W
  11. HYDROARC 64/10 · Surveys2010-08-18 → 2010-10-27
    Nga chart 15562 (0 ed)
  12. HYDROARC 63/10 · Exercises2010-08-18 → 2010-08-22
    Gunnery exercises 221700Z to 221800Z aug within ten miles of 74-23.8N 089-06.8W
  13. HYDROARC 48/10 · Surveys2010-08-01 → 2010-08-15
    Nga chart 15863 (0 ed)
  14. HYDROARC 45/10 · Other2010-07-31 → 2012-11-18
    Nga chart 15863 (0 ed)
  15. HYDROARC 26/10 · Surveys2010-07-04 → 2010-07-29
    Nga chart 15927 (0 ed)
  16. HYDROARC 22/10 · Surveys2010-07-04 → 2010-08-01
    Nga chart 15863 (0 ed)
  17. HYDROARC 21/10 · Wrecks2010-07-03 → 2011-10-22
    Nga chart 15641 (0 ed)
  18. HYDROARC 16/10 · Surveys2010-07-02 → 2010-07-28
    Nga chart 15940 (0 ed)
  19. HYDROARC 1/10 · Wrecks2010-07-02 → 2010-09-06
    Nga chart 15953 (0 ed)
  20. HYDROARC 2/10 · Wrecks2010-07-02 → 2011-08-06
    Nga chart 15564 (1ST ed)

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