Transits of the Northwest Passage up to the end of the 2017 navigation season
Atlantic Ocean ↔ Arctic Ocean ↔ Pacific Ocean
R. K. Headland and colleagues, revised 16 May 2018.
Scott Polar Research Institute, University of Cambridge, Lensfield Road, Cambridge, United Kingdom, CB2 1ER.
The earliest traverse of the Northwest Passage was completed in 1853 but used sledges over the sea ice of the central part of Parry Channel. Subsequently the following 287 complete maritime transits of the Northwest Passage have been made to the end of the 2017 navigation season, before winter began and the passage froze.
These transits proceed to or from the Atlantic Ocean (Labrador Sea) in or out of the eastern approaches to the Canadian Arctic archipelago (Lancaster Sound or Foxe Basin) then the western approaches (McClure Strait or Amundsen Gulf), across the Beaufort Sea and Chukchi Sea of the Arctic Ocean, through the Bering Strait, from or to the Bering Sea of the Pacific Ocean.
The Arctic Circle is crossed near the beginning and the end of all transits except those to or from the central or northern coast of west Greenland. The routes and directions are indicated.
Details of submarine transits are not included because only two have been reported (1960 USS Sea Dragon, Capt. George Peabody Steele, westbound on route 1 and 1962 USS Skate, Capt. Joseph Lawrence Skoog, eastbound on route 1).
Seven routes have been used for transits of the Northwest Passage with some minor variations (for example through Pond Inlet and Navy Board Inlet) and two composite courses in summers when ice was minimal (transits 149 and 166).
These routes are shown on the map below:
1: Davis Strait, Lancaster Sound, Barrow Strait, Viscount Melville Sound, McClure Strait, Beaufort Sea, Chukchi Sea, Bering Strait. The shortest and deepest, but difficult, way owing to the severe ice of McClure Strait. The route is preferred by submarines because of its depth.
2: Davis Strait, Lancaster Sound, Barrow Strait, Viscount Melville Sound, Prince of Wales Strait, Amundsen Gulf, Beaufort Sea, Chukchi Sea, Bering Strait. An easier variant of route 1 which may avoid severe ice in McClure Strait. It is suitable for deep draft vessels.
3: Davis Strait, Lancaster Sound, Barrow Strait, Peel Sound, Franklin Strait, Victoria Strait, Coronation Gulf, Amundsen Gulf, Beaufort Sea, Chukchi Sea, Bering Strait. The principal route; used by most larger vessels of draft less than 14 m.
4: Davis Strait, Lancaster Sound, Barrow Strait, Peel Sound, Rae Strait, Simpson Strait, Coronation Gulf, Amundsen Gulf, Beaufort Sea, Chukchi Sea, Bering Strait. A variant of route 3 for smaller vessels if ice from McClintock Channel has blocked Victoria Strait. Simpson Strait is only 6·4 m deep, it has shoals and complex currents.
5: Davis Strait, Lancaster Sound, Prince Regent Inlet, Bellot Strait, Franklin Strait, Victoria Strait, Coronation Gulf, Amundsen Gulf, Beaufort Sea, Chukchi Sea, Bering Strait. This route is dependent on ice in Bellot Strait which has complex currents. Mainly used by eastbound vessels.
6: Davis Strait, Lancaster Sound, Prince Regent Inlet, Bellot Strait, Rae Strait, Simpson Strait, Coronation Gulf, Amundsen Gulf, Beaufort Sea, Chukchi Sea, Bering Strait. A variant of route 5 for smaller vessels if ice from McClintock Channel has blocked Victoria Strait. Simpson Strait is only 6·4 m deep, complex currents run in it and in Bellot Strait.
7: Hudson Strait, Foxe Basin, Fury and Hecla Strait, Bellot Strait, Franklin Strait, Victoria Strait, Coronation Gulf, Amundsen Gulf, Beaufort Sea, Chukchi Sea, Bering Strait. A difficult route owing to severe ice usually at the west of Fury and Hecla Strait and the currents of Bellot Strait. Mainly used by eastbound vessels as an alternative is practicable.
Complete transits have been made by 219 different vessels.
The Russian icebreaker Kapitan Khlebnikov has made 18 transits, the largest number of any vessel. Hanseatic has made 11, Bremen 9 (2 with the former name, Frontier Spirit), Polar Bound 7; 3 vessels have each made 3 transits, and 21 have made 2.
More than one year was taken by 29 of these vessels, mainly small craft, to complete a transit wintering at various places along the route (complements of some of these vessels left for winter returning in a later navigation season). Return transits in one summer have been made by 5 vessels.
The vessels are from 40 registries: 47 from Canada, 31 France and United States, 26 Bahamas and Russia, 25 Britain, 12 Cayman Islands, 10 Germany, 9 Netherlands, 7 New Zealand, 6 Australia and Sweden, 5 Austria, Finland, and Poland, 4 Marshall Islands, Norway, and Switzerland, 3 Belgium, 2 Antigua and Barbuda, 1 from Barbados, China (Beijing), Cook Islands, Croatia, Curaçao, Denmark, Greenland, Hong Kong, Hungary, Ireland (Dublin), Israel, Italy, Japan, Malta, Nouvelle Calédonie, Panama, Singapore, South Africa, and Spain.
Specific passengers vessels have made 56 transits, but only 8 transits were transporting commercial cargo (numbers 68, 69, 170, 198, 214, 236, 258, and 263). Others were for repositioning (4 transits) and supply, or other work, in the Arctic.
Several of the vessels have travelled through the Panama Canal and circumnavigated North America, a few have circumnavigated all America, and others have circumnavigated the Arctic Ocean by also using the Northeast Passage from or to the Pacific Ocean.
David Scott Cowper and Viktor Vasiliev have commanded 8 transits, Heinz Aye and Piotr Golikov 6, and Thilo Natke 5; 23 others have commanded more than one.
An analysis of the transit routes used through the Northwest Passage to the end of navigation in 2017 shows:
Route 1 West 3 East 0 Total 3
Route 2 West 13 East 4 Total 17
Route 3 West 40 East 29 Total 69
Route 4 West 45 East 11 Total 56
Route 5 West 21 East 36 Total 57
Route 6 West 33 East 42 Total 75
Route 7 West 1 East 7 Total 8
Composite West 1 East 1 Total 2
All Routes West 157 East 130 Total 287
Sources include a compilation by Thomas Pullen and Charles Swithinbank published in Polar Record (1991), with advice from Lawson Brigham (USCG), Peter Capelotti (USCG), David Cowper (Fort Ross visits), David Fletcher, Chris Havern (USCG), Guus van der Linde, Brian McDonald (CCG), John MacFarlane, Peter Semotiuk, Tony Soper, Patrick Toomey (CCG), Victor Wejer, and Christopher Wright, personal observations made during several transits with Quark expeditions, many publications, advice from persons directly involved and several internet sites (with various degrees of reliability). Advice of subsequent voyages, corrections and additions, or similar details is appreciated.
To download documents detailing all of the successful transits of the North West Passage click on one of the following links: