{{Short description|U.S.Coast Guard cutter and icebreaker}} {{Infobox ship |section1={{Infobox ship/image |image= USCGC Storis Conducts Bering Sea Patrol (9687392).jpg |image_size = |image_caption = ''Storis'' in the Bering Sea in April 2026 }}
|section2={{Infobox ship/career | hide_header= | country=United States | flag={{shipboxflag|United States}} | name=''Aiviq'' | namesake=Inupiaq for "walrus" | owner=Edison Chouest Offshore | operator= | registry=Galliano, Louisiana<ref name="abs" /> | route= | ordered=July 2009 | builder=*North American Shipbuilding Company, Larose, Louisiana *LaShip, Houma, Louisiana | original_cost={{ShipCost|USA|200|m|year=2011}} | yard_number=247 | way_number= | laid_down=3 February 2010 | launched=1 November 2011 | christened=24 March 2012 | completed=20 April 2012 | acquired= | maiden_voyage= | in_service=2012–2024 | out_of_service= | identification= *Call sign: WDG2524 *{{MMSI|367141000}}<ref name="equasis">{{csr|register=E|id=9579016|shipname=Aiviq|accessdate=2012-04-14}}</ref> | fate=Sold to the USCG | status= | notes= }}
|section3={{Infobox ship/career | hide_header=title |country=United States Coast Guard |flag={{shipboxflag|United States|coast guard}} | name=USCGC ''Storis''<ref name="storis" /> | namesake=USCGC ''Storis'' (WMEC-38)<ref name="storis2" /> | owner= | operator=United States Coast Guard<ref name="uscg_homeport" /> | original_cost={{ShipCost|USA|125|m|year=2024}}<ref name="uscg_homeport" /> | acquired=20 December 2024<ref name="uscg_20250604" /> | maiden_voyage=4 June 2025<ref name="uscg_20250604">{{cite web|url=https://www.news.uscg.mil/Press-Releases/Article/4205955/uscgc-storis-departs-on-maiden-voyage/|title=USCGC Storis departs on maiden voyage|website=United States Coast Guard|date=4 June 2025|accessdate=4 June 2025}}</ref> | homeport=* Seattle, Washington (temporary)<ref name="uscg_20250604" /> * Juneau, Alaska (future)<ref name="uscg_homeport">{{cite web|url=https://www.news.uscg.mil/Press-Releases/Article/3873673/us-coast-guard-announces-juneau-homeporting-for-future-icebreaker/|title=U.S. Coast Guard announces Juneau homeporting for future icebreaker|website=United States Coast Guard|date=14 August 2024|accessdate=15 August 2024}}</ref> | commissioned=10 August 2025<ref name="ADN_202508114">{{cite news |last=Brooks |first=James |date=11 August 2025 |title=U.S. Coast Guard adds icebreaker to fleet for first time in 25 years |url=https://www.adn.com/alaska-news/military/2025/08/10/us-coast-guard-adds-icebreaker-to-fleet-for-first-time-in-25-years/ |work=Anchorage Daily News |location=Juneau, Alaska |url-access=subscription |access-date=10 August 2025}}</ref> | in_service=2025–<ref name="uscg_20250604" /> | out_of_service= | identification=*WAGB 21 *{{IMO number|9579016}} | motto = ''Breaking through to new horizons'' | fate= | status=In service | notes= | badge=150px|center }}
|section4={{Infobox ship/characteristics | hide_header= | header_caption=(as built) | class= | type=Anchor handling tug supply vessel (AHTS) | tonnage=*{{GT|12,892}} *{{NetT|3,867}} *{{DWT|4,129}} | displacement= | length={{convert|110|m|ftin|abbr=on}} | beam={{convert|24.4|m|ftin|abbr=on}} | height= | draft={{convert|8.6|m|ftin|abbr=on}} | depth={{convert|10.4|m|ftin|abbr=on}} | ice_class=ABS A3 | power=4{{nbsp}}×{{nbsp}}Caterpillar C280-12 (4{{nbsp}}×{{nbsp}}4,060{{nbsp}}kW) | propulsion=*Two ducted controllable-pitch propellers *Three bow thrusters and two stern thrusters | speed=*{{convert|15|kn}} in open water *{{convert|5|kn}} in {{convert|1|m|ft|abbr=on}} ice | capacity= | crew=28; accommodation for 64 | aircraft_facilities = Helideck | notes= }}
|section5={{Infobox ship/characteristics | hide_header=title | header_caption=(after refit) | class= | type=Medium icebreaker (USCG)<ref name="uscg_homeport" /> | notes=Otherwise same as built }} }}
'''USCGC ''Storis'' (WAGB-21)''' is a United States Coast Guard medium icebreaker. She was originally built as the icebreaking anchor handling tug supply vessel (AHTS) '''''Aiviq''''' to support oil exploration and drilling in the Chukchi Sea off Alaska. The USCG acquired the vessel in December 2024 and she was commissioned in Juneau on 10 August 2025.
==General characteristics== ''Storis'' is {{convert|110|m|ftin}} long overall and {{convert|95.5|m|ftin}} between perpendiculars. Her hull has a beam of {{convert|24.4|m|ft}} and depth of {{convert|10.4|m|ftin}}.<ref name="abs">{{csr|register=ABS|id=12185769|shipname=Aiviq|accessdate=2012-06-20}}</ref> Fully laden, she draws {{convert|8.6|m|ftin}} of water.<ref name="shell">[http://www.shell.us/home/content/usa/aboutshell/projects_locations/alaska/events_news/03262012_ice-vessel.html Shell Takes Delivery of New Ice Class Vessel] {{webarchive|url=https://web.archive.org/web/20120514141647/http://www.shell.us/home/content/usa/aboutshell/projects_locations/alaska/events_news/03262012_ice-vessel.html |date=2012-05-14 }}. Shell, 24 March 2012. {{retrieved | accessdate=2012-04-14}}</ref> Built as an anchor handling tug and supply vessel, ''Storis'' was originally fitted with a large towing winch located amidships as well as chain lockers and storage tanks for both liquid and dry bulk cargo under the main deck.<ref name="ga">[http://www.boem.gov/uploadedFiles/BOEM/Oil_and_Gas_Energy_Program/Plans/Regional_Plans/Alaska_Exploration_Plans/2012_Shell_Beaufort_EP/Appendix%20K%20-%20Ice%20Management.pdf Appendix K: Ice management plan] {{Webarchive|url=https://web.archive.org/web/20121010062318/http://www.boem.gov/uploadedFiles/BOEM/Oil_and_Gas_Energy_Program/Plans/Regional_Plans/Alaska_Exploration_Plans/2012_Shell_Beaufort_EP/Appendix%20K%20-%20Ice%20Management.pdf |date=2012-10-10 }}. Shell Offshore Inc. Pages 41–43. {{retrieved|accessdate=2013-01-05}}</ref> Her gross tonnage is 12,892, net tonnage 3,867 and deadweight tonnage 4,129 tonnes.<ref name="abs" />
''Storis'' is powered by four 12-cylinder Caterpillar C280-12 four stroke medium speed diesel engines, each producing {{convert|4060|kW|hp|abbr=on}} at 1,000 rpm. The engines are coupled to two {{convert|4.6|m|ft|adj=on}} Schottel controllable-pitch propeller in nozzles via Flender reduction gearboxes.<ref name="abs" /><ref name="pride">[http://www.professionalmariner.com/American-Ship-Review-2013/Aiviq-Pride-of-Shells-Alaskan-drilling-fleet/ Aiviq: Pride of Shell's Alaskan drilling fleet]. Professional Mariner, 16 October 2012. {{retrieved|accessdate=2013-01-01}}</ref> The propulsion system gives ''Storis'' a service speed of {{convert|15|kn}} in open water and {{convert|5|kn}} in {{convert|1|m|ftin|adj=on}} level ice, and a bollard pull of 200 metric tons.<ref name="shell" /> She also has two 2,000 kW shaft generators and four 1,700 kW Caterpillar 3512C auxiliary diesel generators that provide power for onboard consumers, including the firefighting system. She has three bow thrusters, one of them of azimuthing fold-down type, and two stern thrusters that give her dynamic positioning capability. For redundancy and improved handling, she has two high-lift rudders.<ref name="abs" /><ref name="workboat">[http://www.workboat.com/newsdetail.aspx?id=13632 Breaking the Ice] {{webarchive|url=https://web.archive.org/web/20141231203222/http://www.workboat.com/newsdetail.aspx?id=13632 |date=2014-12-31 }}. WorkBoat.com, 15 May 2012. {{retrieved | accessdate=2012-06-20}}</ref><ref name="ga" /> The propellers of ''Storis'' were reportedly designed to be quieter than normal in order to be less disruptive to local marine life.<ref name=Ktuu2011-11-14>{{cite news|url=http://articles.ktuu.com/2011-11-14/arctic-offshore-drilling_30399477 |title=Shell Offshore: Arctic Icebreaker Takes Shape |publisher=KTUU |date=2011-11-14 |accessdate=2012-01-27 |author=Ted Land |url-status=dead |archiveurl=https://web.archive.org/web/20120119010412/http://articles.ktuu.com/2011-11-14/arctic-offshore-drilling_30399477 |archivedate=2012-01-19 }}</ref>
''Storis'' was built to American Bureau of Shipping ice class ABS A3 which indicates that she is strengthened for navigation in polar ice conditions with the presence of multiyear ice floes. Furthermore, the notation "Ice Breaker" states that she is designed and constructed for breaking ice to open navigable channels for other ships.<ref name="abs" /><ref name="MAREX" />
==Construction==
In July 2009, Edison Chouest Offshore won a $150 million contract for the construction of an icebreaking anchor handling tug supply (AHTS) vessel for Royal Dutch Shell. The {{convert|360|ft|m|adj=on}} vessel, largest ever built by the company, would be used to support Shell's drilling operations in the Beaufort Sea and Chukchi Sea off Alaska.<ref>[http://www.dailycomet.com/article/20090722/HURBLOG/907229884/1223?Title=Chouest-scores-new-icebreaker-contract Chouest scores new icebreaker contract] {{Webarchive|url=https://web.archive.org/web/20140808042531/http://www.dailycomet.com/article/20090722/HURBLOG/907229884/1223?Title=Chouest-scores-new-icebreaker-contract |date=2014-08-08 }}. dailycomet.com, 22 July 2009. {{retrieved|accessdate=2013-01-01}}</ref> In January 2010, it was announced that the vessel would be constructed in Louisiana. The hull and the superstructure would be built in the company's own shipyard North American Shipbuilding Company in Larose in two separate units while the final assembly of the vessel would take place at LaShip, also owned by Edison Chouest, in Houma. In all, the construction would take just over two years and provide work for about 800 people.<ref>[https://web.archive.org/web/20140808044046/http://www.dailycomet.com/article/20100122/ARTICLES/100129748 Icebreaker to be built locally]. dailycomet.com, 22 January 2010. {{retrieved | accessdate=2013-01-01}}</ref>
Laid down on 3 February 2010,<ref name="abs" /> the newbuilding "Hull 247" was presented to Shell executives on 30 September 2011. By then, the price of the vessel had climbed to $200 million due to material and equipment factors, such as the price of steel.<ref>[http://www.wwltv.com/news/Shell-execs-get-glimpse-of-all-new-icebreaker-ship-design-130914038.html Shell execs get glimpse of 'all new' icebreaker ship design] {{webarchive|url=https://web.archive.org/web/20140808041748/http://www.wwltv.com/news/Shell-execs-get-glimpse-of-all-new-icebreaker-ship-design-130914038.html |date=2014-08-08 }}. WWLTV, 1 October 2011. {{retrieved | accessdate=2013-01-01}}</ref><ref>[http://www.chron.com/business/article/Shell-hopes-to-break-the-ice-on-Arctic-drilling-2197495.php Shell hopes to break the ice on Arctic drilling]. Chron, 30 September 2011. {{retrieved | accessdate=2013-01-01}}</ref> The vessel was launched on 1 November 2011.<ref name="abs" /> According to Edison Chouest spokesman Gary Chouest, ''"It [''Aiviq''] will be the world's largest and most powerful anchor-handling icebreaker."''<ref name=AnchorageDailyNews2011-12-06>{{cite news|url=http://www.adn.com/2011/12/05/2204274/shell-about-to-unveil-200-million.html|title=Shell to unveil icebreaker for Arctic Alaska offshore drilling: Vessel will work waters off Alaska during oil exploration|work=Anchorage Daily News|date=2011-12-06|accessdate=2012-01-26|author=Lisa Demer|url-status=dead|archiveurl=https://web.archive.org/web/20120107133034/http://www.adn.com/2011/12/05/2204274/shell-about-to-unveil-200-million.html|archivedate=2012-01-07}}</ref> The vessel has also been called the world's most powerful privately owned icebreaker.<ref name=maritimeExecutive2018-01-02>{{cite news|url=https://www.maritime-executive.com/editorials/an-out-of-the-blue-icebreaker-opportunity|title=An Out-of-the-Blue Icebreaker Opportunity|work=Maritime Executive|author=Pierre LeBlanc|date=2018-01-02|archiveurl=https://web.archive.org/web/20180107085857/https://www.maritime-executive.com/editorials/an-out-of-the-blue-icebreaker-opportunity|archivedate = 2018-01-07|accessdate = 2018-11-28|url-status=live|quote=The m/v Aiviq is a Polar Class 3 icebreaker built by North American Shipbuilders in 2012. It is reported to be the world's most powerful icebreaker privately owned.}}</ref>
In 2011, Shell invited Inupiak schoolchildren to submit essays suggesting names for the vessel. Twelve-year-old Elizabeth Itta submitted the winning essay, describing how the Walrus, "Aiviq" in the Inupiak language, use their tusks to break ice. She won a cash prize for her school and an invitation to attend the ship's launching ceremony on 24 March 2012.<ref name=Shell>{{cite news|url=http://www.shell.us/home/content/usa/aboutshell/projects_locations/alaska/events_news/12092012_walrus.html |title=Winner of Ice Breaker Naming Contest |publisher=Shell Oil |date=2011-12-09 |accessdate=2012-01-27 |url-status=dead |archiveurl=https://web.archive.org/web/20120514135634/http://www.shell.us/home/content/usa/aboutshell/projects_locations/alaska/events_news/12092012_walrus.html |archivedate=2012-05-14 }} ()</ref><ref>[http://shipbuildingtribune.com/2012/03/26/usa-edison-chouest-offshore-shipyard-christens-shells-new-icebreaker-aiviq/ USA: Edison Chouest Offshore Shipyard Christens Shell's New Icebreaker Aiviq] {{Webarchive|url=https://web.archive.org/web/20120712122557/http://shipbuildingtribune.com/2012/03/26/usa-edison-chouest-offshore-shipyard-christens-shells-new-icebreaker-aiviq/ |date=2012-07-12 }}. ShipbuildingTribune.com, 26 March 2012. {{retrieved | accessdate=2013-01-01}}</ref> The vessel went for sea trials in April and was delivered on 20 April 2012.<ref name="abs" /><ref name="marinelog1april">[http://www.marinelog.com/index.php?option=com_content&view=article&id=2208 Giant ice-class AHTS on sea trials following completion by Chouest] {{webarchive|url=https://web.archive.org/web/20120214072026/http://www.marinelog.com/index.php?option=com_content |date=2012-02-14 }}. MarineLog, 1 April 2012. {{retrieved | accessdate=2012-04-14}}</ref>
The construction of the new icebreaker and Shell's Arctic drilling operation off Alaska raised concerns about the ability of the United States Coast Guard to operate in ice-infested waters since at the time the Coast Guard had only one operational icebreaker, {{USCGC|Healy}}.<ref>[https://web.archive.org/web/20120720041259/http://www.businessweek.com/news/2012-07-18/shell-led-arctic-push-finds-u-dot-s-dot-shy-in-icebreakers-energy Shell-Led Arctic Push Finds U.S. Shy in Icebreakers: Energy]. Bloomberg BusinessWeek, 18 July 2012. {{retrieved|accessdate=2013-01-01}}</ref>
In April 2015, it was reported that Edison Chouest would build two Polar Class 3 anchor-handling tug supply (AHTS) vessels at the company's LaShip shipyard in Houma, Louisiana. Unlike ''Aiviq'', the new vessels would have been fitted with Rolls-Royce azimuth thrusters instead of conventional shaftlines and rudders.<ref>[http://www.rolls-royce.com/media/press-releases/yr-2015/pr-040315-rr-to-supply-propulsion-and-deck.aspx Rolls-Royce to supply propulsion and deck machinery to a new vessel for Edison Chouest] {{Webarchive|url=https://web.archive.org/web/20160603223001/http://www.rolls-royce.com/media/press-releases/yr-2015/pr-040315-rr-to-supply-propulsion-and-deck.aspx |date=2016-06-03 }}. Rolls-Royce, 4 March 2015. {{retrieved|accessdate=2016-05-14}}</ref> However, in November 2015 it was reported that Edison Chouest might have canceled the vessels following Shell's decision to halt Arctic oil exploration.<ref>[http://www.marinelog.com/index.php?option=com_k2&view=item&id=10031:chouest-said-to-have-canceled-arctic-ahts-duo&Itemid=230 Chouest said to have canceled Arctic AHTS duo]. MarineLog, 9 November 2015. {{retrieved|əccessdate=2016-05-14}}</ref>
== Career ==
=== ''Aiviq'' (2012–2024) ===
==== 2012 grounding of ''Kulluk'' ==== thumb|left|''Aiviq'' in heavy seas on 30 December 2012. thumb|left|''Kulluk'' aground on the southeast side of Sitkalidak Island, Alaska, on 1 January 2013. On 27 December 2012, while ''Aiviq'' was towing the mobile offshore drilling unit ''Kulluk'' off the coast of Kodiak Island, Alaska, the towing line between the icebreaker and the drilling rig parted due to a mechanical failure of the towing shackle.<ref name="sitrep">[http://dec.alaska.gov/spar/perp/response/sum_fy13/121227201/121227201_sr_02.pdf M/V Aiviq Tow-Gulf of Alaska] {{Webarchive|url=https://web.archive.org/web/20130202135812/http://dec.alaska.gov/spar/perp/response/sum_fy13/121227201/121227201_sr_02.pdf |date=2013-02-02 }}. Alaska Department of Environmental Conservation, 28 December 2012. {{retrieved|accessdate=2013-01-05}}</ref> Shortly after the tow had been regained, the main engines of ''Aiviq'' failed and the vessel lost propulsion power in {{convert|20|ft|m|0|adj=on}} seas. In the following morning, power was successfully restored on one of the four main engines and the vessel was able to hold position in the heavy weather.<ref name="aiviq1">[https://www.piersystem.com/go/doc/5507/1669855/MV-Aiviq-loses-power-at-sea MV Aiviq loses power at sea]. Aiviq Tow - Gulf of Alaska, Unified Command, 28 December 2012. {{retrieved | accessdate=2012-12-28}}</ref> United States Coast Guard cutter USCGC ''Alex Haley'' was dispatched to the scene to monitor the situation.<ref>[http://d17.uscgnews.com/go/doc/4007/1669275/ Coast Guard assists tug and tow in Gulf of Alaska] {{Webarchive|url=https://web.archive.org/web/20130102220503/http://d17.uscgnews.com/go/doc/4007/1669275/ |date=2013-01-02 }}. United States Coast Guard, 28 December 2012. {{retrieved | accessdate=2013-01-01}}</ref> In response to the incident, the Coast Guard, Shell and Edison Chouest established a Unified Command to coordinate the operation.<ref>[https://www.piersystem.com/go/doc/5507/1669883/Unified-Command-established Unified Command established]. Unified Command, 28 December 2012. {{retrieved|accessdate=2013-01-01}}</ref> Shell-contracted vessels ''Guardsman'' and ''Nanuq'' were also en route to the scene.<ref name="aiviq1" />
On 29 December, the Unified Command authorized the drilling rig to drop its anchor to slow its drift towards the coast and ordered the Coast Guard to evacuate the 18 crew members on ''Kulluk'' by helicopter as a precaution.<ref>[https://www.piersystem.com/go/doc/5507/1669911/Unified-Command-Statement-3 Unified Command Statement #3]. Unified Command, 29 December 2012. {{retrieved|accessdate=2013-01-01}}</ref><ref>[https://www.piersystem.com/go/doc/5507/1669915/Unified-Command-authorizes-Kulluk-to-drop-anchor-to-slow-drift Unified Command authorizes Kulluk to drop anchor to slow drift]. Unified Command, 29 December 2012. {{retrieved|accessdate=2013-01-01}}</ref> Sikorsky HH-60 Jayhawk helicopters operated by the Coast Guard also delivered essential equipment parts to ''Aiviq'' and later power was restored on all four engines. Together with ''Nanuq'', ''Aiviq'' was able to hold the drilling rig stationary during the crew evacuation and later continue towing the vessel away from the coast.<ref>[https://www.piersystem.com/go/doc/5507/1669919/Incident-response-continues-second-engine-running-on-Aiviq- Incident response continues, second engine running on Aiviq]. Unified Command, 29 December 2012. {{retrieved|accessdate=2013-01-01}}</ref><ref>[https://www.piersystem.com/go/doc/5507/1670119/Update-6-18-personnel-on-Kulluk-safely-evacuated-Aiviq-s-4-engines-functioning Update #6: 18 personnel on Kulluk safely evacuated, Aiviq's 4 engines functioning]. Unified Command, 29 December 2012. {{retrieved|accessdate=2013-01-01}}</ref>
On 30 December, the tow lines of ''Aiviq'' and ''Nanuq'' parted again, and ''Kulluk'' began drifting towards the coast. Another tugboat, the 10,000-horsepower ''Alert'' operated by Crowley Marine Services,<ref>[http://www.tugboatinformation.com/tug.cfm?id=1176 Alert]. Tugboat-information.com. {{retrieved|accessdate=2013-01-01}}</ref> also arrived to the scene from Prince William Sound.<ref>[https://www.piersystem.com/go/doc/5507/1670283/Update-9-Kulluk-tow-lines-separated-Alert-on-scene Update #9: Kulluk tow lines separated; Alert on scene]. Unified Command, 30 December 2012. {{retrieved|accessdate=2013-01-01}}</ref> Shortly after midnight, ''Alert'' was able to secure connection to the {{convert|400|ft|m|adj=on}} towing line previously used by ''Aiviq'' and later in the morning the icebreaker had also reconnected to ''Kulluk'' about {{convert|19|nmi}} southeast from Kodiak Island.<ref>[https://www.piersystem.com/go/doc/5507/1670343/Update-10-Kulluk-under-tow-by-Aiviq-and-Alert Update #10: Kulluk under tow by Aiviq and Alert]. Unified Command, 31 December 2012. {{retrieved|accessdate=2013-01-01}}</ref> USCGC ''Alex Haley'' also returned to the scene from Kodiak, where the cutter had repaired her fouled port propeller, and relieved the crew of USCGC ''Spar'' as on scene commander. The helicopter crews were also preparing to deploy several technicians aboard the drilling rig to evaluate the condition of the towing lines.<ref name="uscg1">[http://www.uscgnews.com/go/doc/4007/1670651/ Coast Guard crews continue battling fierce storm to assist Kulluk near Kodiak, Alaska] {{Webarchive|url=https://web.archive.org/web/20130105174055/http://www.uscgnews.com/go/doc/4007/1670651/ |date=2013-01-05 }}. United States Coast Guard, 31 December 2012. {{retrieved|accessdate=2013-01-01}}</ref>
Later in the evening, ''Kulluk'' was again set adrift after the Coast Guard ordered ''Alert'' to separate from the rig, now only {{convert|4|nmi}} from the nearest point of land, to maintain the safety of the nine crew members on board the tug in nearly {{convert|30|ft|m|adj=on}} seas.<ref name="uscg1" /><ref>[https://www.piersystem.com/go/doc/5507/1670671/Update-11-Kulluk-is-adrift-four-miles-from-nearest-point-of-land Kulluk is adrift; four miles from nearest point of land]. Unified Command, 31 December 2012. {{retrieved|accessdate=2013-01-01}}</ref> Only moments later, ''Kulluk'' was grounded near the uninhabited Sitkalidak Island at a depth of about {{convert|32|-|48|ft|m}}.<ref>[https://www.piersystem.com/go/doc/5507/1670687/Unified-Command-Update-12-Kulluk-grounded-vessel-condition-not-yet-confirmed Unified Command Update #12: Kulluk grounded, vessel condition not yet confirmed]. Unified Command, 31 December 2012. {{retrieved|accessdate=2013-01-01}}</ref>
The salvage operation was awarded to the Dutch salvage company Smit International.<ref name="salvage">{{usurped|1=[https://web.archive.org/web/20130106030624/http://www.kullukresponse.com/go/doc/5507/1671847/CORRECTION-Update-18-Salvage-Assessment-Team-Safely-Boards-Drilling-Unit Update #18: Salvage Assessment Team Safely Boards Drilling Unit]}}. Unified Command, 2 January 2013. {{retrieved|accessdate=2013-01-04}}</ref> A team of five salvage experts boarded ''Kulluk'' on 2 January 2013 to assess the structural integrity of the grounded drilling barge.<ref name="salvage" /> On 3 January, it was reported that ''Kulluk'' had suffered damage since the grounding but its structural integrity had not been compromised and there have been no leaks from the rig's fuel tanks.<ref>[http://www.ktuu.com/news/kulluk-has-suffered-damage-since-grounding-hasnt-leaked-oil-010312,0,5074823.story Kulluk Has Suffered Damage Since Grounding, Hasn't Leaked Oil] {{Webarchive|url=https://web.archive.org/web/20130107211903/http://www.ktuu.com/news/kulluk-has-suffered-damage-since-grounding-hasnt-leaked-oil-010312,0,5074823.story |date=2013-01-07 }}. KTUU.com, 3 January 2012. {{retrieved|accessdate=2013-01-04}}</ref> At the time of the grounding, ''Kulluk'' was carrying 139,000 gallons of diesel fuel and 12,000 gallons of lubricating and hydraulic oil.<ref>[https://www.piersystem.com/go/doc/5507/1670699/Unified-Command-Update-13 Unified Command Update #13]. Unified Command, 1 January 2013. {{retrieved | accessdate=2013-01-01}}</ref> By 4 January, 14 vessels had been mobilized for the recovery operation and the United States Department of Defense provided two Boeing CH-47 Chinook helicopters to transport heavy salvage gear to the site.<ref>{{usurped|1=[https://archive.today/20130216085225/http://www.kullukresponse.com/go/doc/5507/1674171/ Update #21: Extensive Air and Sea Activity as Kulluk Recovery Operations Continue]}}. Unified Command, 4 January 2013. {{retrieved|accessdate=2013-01-05}}</ref>
''Kulluk'' was successfully refloated on 6 January and towed to a sheltered location in Kiliuda Bay, some {{convert|30|nmi}} from the original grounding location, on the following day.<ref>{{cite web|title=Grounded Shell oil-drilling ship refloated|url=http://bigstory.ap.org/article/grounded-shell-oil-drilling-ship-refloated|publisher=The Associated Press|accessdate=7 January 2013}}</ref><ref>{{usurped|1=[https://web.archive.org/web/20130111013208/http://www.kullukresponse.com/go/doc/5507/1675595#.UOs5H3h9SHd Update #34: Kulluk arrives safely at Kiliuda Bay, will undergo assessment]}}. Unified Command, 7 January 2013. {{retrieved | accessdate=2013-01-07}}</ref> After the rig was brought to a shipyard in Singapore on board a heavy-lift vessel, Shell decided not to repair the damages and sold the drilling unit for recycling in China.<ref>[http://www.petroleumnews.com/pntruncate/81694360.shtml Shell responds to BOEM]. Petroleum News, 5 January 2014. {{retrieved|accessdate=2014-04-12}}</ref>
In the investigation report published by the United States Coast Guard on 2 April 2014, the initiating event to the casualty was identified as the failure of a 120-ton apex shackle which was considered undersized for towing ''Kulluk'' in such environmental conditions. The 90-feet catenary surge chain used to damp shock loads in the towing line was also deemed insufficient. According to the Coast Guard, the "numerous and compounding preconditions" that led to the casualty also included various operational issues such as the towing plans that were not adequate for the winter towing operation crossing the Gulf of Alaska and the crew's lack of towing experience in the Gulf of Alaska waters particularly during the wintertime.<ref name="accidentreport">[https://www.dco.uscg.mil/Portals/9/DCO%20Documents/5p/CG-5PC/INV/docs/documents/Kulluk.pdf Report of Investigation into the Circumstances Surrounding the Multiple Related Marine Casualties and Grounding of the MODU KULLUK on December 31, 2012]. United States Coast Guard, 2 April 2014. {{retrieved|accessdate=2018-10-31}}</ref>
In the same report, it was also concluded that the likely cause for ''Aiviq''{{'}}s loss of main engine power was sea water in the fuel oil. After the casualty, sea water contamination was found in settling tanks, day tanks, main engine primary filters and main engine injectors. The design of the vessel allowed considerable amount of sea water to enter the stern deck and subsequently to the fuel oil tanks through overflow vents in heavy weather. There were also problems with fuel management practices onboard ''Aiviq''.<ref name="accidentreport" />
''Kulluk'''s movement south for the winter was at least in part motivated by an effort to avoid State of Alaska property taxes on oil and gas extraction equipment.<ref name="dispatch-ben">{{Cite news | work = Alaska Dispatch | title = Did Alaska tax liability influence Shell Oil's latest Arctic fiasco? | url = http://www.alaskadispatch.com/article/did-alaska-tax-liability-influence-shell-oils-latest-arctic-fiasco | first = Ben | last = Anderson | date = January 3, 2013 | accessdate = November 15, 2011 | archive-date = January 7, 2013 | archive-url = https://web.archive.org/web/20130107011841/http://www.alaskadispatch.com/article/did-alaska-tax-liability-influence-shell-oils-latest-arctic-fiasco | url-status = dead }}</ref>
==== 2015 proposed sale to the US Coast Guard ====
On 14 May 2015, US Congressman Duncan Hunter of California, began advocating for the acquisition of ''Aiviq'' by the US Coast Guard (USCG) due to an availability gap caused by USCG's deactivation of the icebreaker USCGC ''Polar Sea''.<ref name="SDUT Hunter">{{cite web|author1=Morgan Cook|title=Hunter pushes Coast Guard to lease or buy ship owned by top campaign donor|url=http://www.sandiegouniontribune.com/news/watchdog/sd-me-watchdog-icebreaker-20161013-story.html|work=The San Diego Union-Tribune|accessdate=22 January 2018|archiveurl=https://web.archive.org/web/20180122090806/http://www.sandiegouniontribune.com/news/watchdog/sd-me-watchdog-icebreaker-20161013-story.html|archivedate=22 January 2018|date=13 October 2016|quote=[Coast Guard Adm. Charles] Michel said the Coast Guard's commandant had personally visited the vessel and found it "not suitable for military service without substantial refit." He said the Coast Guard does not operate non-military icebreakers.}}</ref> USCG repeatedly turned down Hunter's continued proposals, citing the vessel's unsuitability for military operations and being less-capable than USCGC ''Healy'', with Coast Guard Admiral Charles Michel stating ''Aiviq'' is "Not suitable for military service without substantial refit. [...] We have very specific requirements for our vessels, including international law requirements for assertion of things like navigation rights. This vessel does not just break ice."<ref name="SDUT Hunter" /><ref name="MAREX">{{cite web|title=Rep. Young Pushes Coast Guard to Consider the Aiviq|url=https://www.maritime-executive.com/article/rep-young-pushes-coast-guard-to-consider-the-aiviq|publisher=The Maritime Executive|accessdate=22 January 2018|archiveurl=https://web.archive.org/web/20180122094801/https://www.maritime-executive.com/article/rep-young-pushes-coast-guard-to-consider-the-aiviq|archivedate=22 January 2018|date=13 July 2016|quote=Without modification, the Aiviq is somewhat less capable than the Coast Guard medium icebreaker Healy, and is not in the same class as the heavy icebreaker due to retire next decade, the Polar Star.}}</ref>
Controversy arose after it was published that Congressman Hunter had received campaign funding from ''Aiviq''<nowiki>'</nowiki>s owner, Edison Chouest Offshore, and contributors connected to the owner, six days before initially advocating the vessel's sale to USCG.<ref name="SDUT Hunter 2">{{cite web|author1=Morgan Cook|title=Hunter pushes Coast Guard to lease or buy ship owned by top campaign donor|url=http://www.sandiegouniontribune.com/news/watchdog/sd-me-watchdog-icebreaker-20161013-story.html|work=The San Diego Union-Tribune|accessdate=22 January 2018|archiveurl=https://web.archive.org/web/20180122090806/http://www.sandiegouniontribune.com/news/watchdog/sd-me-watchdog-icebreaker-20161013-story.html|archivedate=22 January 2018|date=13 October 2016|quote=The Chouest funds were all received May 8, 2015 — six days before the Coast Guard was to have an acquisitions hearing before a Congressional subcommittee chaired by Hunter.}}</ref> Edison Chouest's contributions to Hunter have made them the congressman's second largest donor.<ref name="SDUT Hunter 3">{{cite web|author1=Morgan Cook|title=Hunter pushes Coast Guard to lease or buy ship owned by top campaign donor|url=http://www.sandiegouniontribune.com/news/watchdog/sd-me-watchdog-icebreaker-20161013-story.html|work=The San Diego Union-Tribune|accessdate=22 January 2018|archiveurl=https://web.archive.org/web/20180122090806/http://www.sandiegouniontribune.com/news/watchdog/sd-me-watchdog-icebreaker-20161013-story.html|archivedate=22 January 2018|date=13 October 2016|quote=Contributors connected to the Aiviq's owner, Louisiana-based shipbuilder Edison Chouest Offshore, have given at least $18,000 to Hunter's campaign since January 2015. That's a fraction of the $911,000 that Hunter raised during that time period. It makes Chouest the second most generous supporter of Hunter, according to review by The San Diego Union-Tribune of campaign finance records.}}</ref> The company's donations came as Congressman Hunter was under investigation for misuse of campaign funds.<ref name="SDUT Hunter 4">{{cite web|author1=Morgan Cook|title=Hunter pushes Coast Guard to lease or buy ship owned by top campaign donor|url=http://www.sandiegouniontribune.com/news/watchdog/sd-me-watchdog-icebreaker-20161013-story.html|work=The San Diego Union-Tribune|accessdate=22 January 2018|archiveurl=https://web.archive.org/web/20180122090806/http://www.sandiegouniontribune.com/news/watchdog/sd-me-watchdog-icebreaker-20161013-story.html|archivedate=22 January 2018|date=13 October 2016|quote=The money entered Hunter's campaign coffers at the height of a problem he has since acknowledged with thousands of dollars of campaign funds that were spent on personal expenses — such as $1,137 for oral surgery the following month.}}</ref> On 12 July 2016, Hunter's advocacy for the vessel's acquisition was joined by US Congressman Don Young of Alaska.<ref name="SDUT Young">{{cite web|author1=Morgan Cook|title=Hunter pushes Coast Guard to lease or buy ship owned by top campaign donor|url=http://www.sandiegouniontribune.com/news/watchdog/sd-me-watchdog-icebreaker-20161013-story.html|work=The San Diego Union-Tribune|accessdate=22 January 2018|archiveurl=https://web.archive.org/web/20180122090806/http://www.sandiegouniontribune.com/news/watchdog/sd-me-watchdog-icebreaker-20161013-story.html|archivedate=22 January 2018|date=13 October 2016|quote=At the subcommittee hearing July 12, Hunter had an ally in Rep. Don Young, R-Alaska, who also believes the Coast Guard does not require military-grade vessels for ice breaking. He described Michel's justification for not wanting to lease the Aiviq because it's not a military vessel as "a bulls--- answer." Since 2015, Edison Chouest Offshore was Young's top campaign contributor, donating at least $28,300, according to Opensecrets.org.}}</ref> ''Aiviq''<nowiki>'</nowiki>s owner was Congressman Young's largest campaign donor at that time.<ref name="Young contribs">{{cite web|title=Rep. Don Young - Alaska District 01 - Contributors 2015 - 2016|url=https://www.opensecrets.org/members-of-congress/contributors?cid=N00007999&cycle=2016|website=OpenSecrets|accessdate=22 January 2018|archiveurl=https://web.archive.org/web/20180122100139/https://www.opensecrets.org/members-of-congress/contributors?cid=N00007999&cycle=2016|archivedate=22 January 2018}}</ref>
Congressman Hunter's office estimated it would cost US$33 million a year to lease, or US$150 million to buy ''Aiviq'' outright.<ref name="Def News">{{cite web|author1=Joe Gould|title=US Lawmaker Wants Pre-Owned Ice Ship Over Coast Guard Objections|url=https://www.defensenews.com/naval/2016/09/30/us-lawmaker-wants-pre-owned-ice-ship-over-coast-guard-objections/|website=Defense News|accessdate=22 January 2018|archiveurl=https://archive.today/20180122102528/https://www.defensenews.com/naval/2016/09/30/us-lawmaker-wants-pre-owned-ice-ship-over-coast-guard-objections/|archivedate=2018-01-22|date=30 September 2016|quote=Hunter claims the cost to charter an existing vessel, called the Aiviq, would be $33 million per year to lease and $150 million to buy.|url-status=live}}</ref><ref name="SDUT Hunter 5">{{cite web|author1=Morgan Cook|title=Hunter pushes Coast Guard to lease or buy ship owned by top campaign donor|url=http://www.sandiegouniontribune.com/news/watchdog/sd-me-watchdog-icebreaker-20161013-story.html|work=The San Diego Union-Tribune|accessdate=22 January 2018|archiveurl=https://web.archive.org/web/20180122090806/http://www.sandiegouniontribune.com/news/watchdog/sd-me-watchdog-icebreaker-20161013-story.html|archivedate=22 January 2018|date=13 October 2016|quote=Last month, Hunter asked Republican House leadership for money to be included in "any suitable and forthcoming appropriations vehicle" for lease or purchase of a medium icebreaker, according to a Sept. 20 letter Hunter's office released to the Union-Tribune on Thursday. The letter estimated the costs to charter the Aiviq at $33 million per year to lease, or $150 million to buy.}}</ref>
==== Proposed sale to Canada ====
In 2016, Davie Shipbuilding offered ''Aiviq'' together with other out-of-work offshore icebreakers to the Canadian Coast Guard as a replacement for {{ship|CCGS|Louis S. St-Laurent}}.<ref>[http://www.davie.ca/pdf/Aiviq.pdf Aiviq - Polar Icebreaker] {{Webarchive|url=https://web.archive.org/web/20160806031407/http://www.davie.ca/pdf/Aiviq.pdf |date=2016-08-06 }}. Davie Shipbuilding. {{retrieved|accessdate=2016-06-13}}</ref> However, recent reports indicate that the Canadian Coast Guard is not interested in the vessel.<ref>[http://ici.radio-canada.ca/nouvelle/1091392/brise-glaces-davie Brise-glaces et Davie : des doutes sur la volonté d'Ottawa]. Radio-Canada, 26 March 2018. {{retrieved|accessdate=2018-03-28}}</ref> In June 2018, it was announced that the Canadian government ended up partnering with Davie Shipbuilding, but using three ships from Viking Supply Ships.<ref>{{cite web | url = https://www.marinelog.com/index.php?option=com_k2&view=item&id=29600:canada-taps-davie-for-three-ahts-conversion-medium-icebreakers&Itemid=231 | title = Canada taps Davie for three AHTS-conversion medium icebreakers | date = 2018-06-22 | work = Marine Log | publisher = Simmons-Boardman Publishing}}</ref>
==== Later career ====
After years of lay-up, ''Aiviq'' was chartered by Australian Antarctic Division to support Davis Station refueling and other Antarctic missions during the 2021–2022 and 2022–2023 seasons.<ref>{{cite web|url=https://antapps.aad.gov.au/public/schedules/|title=Schedules for - 2021/22|website=Australian Antarctic Program|accessdate=15 December 2021}}</ref><ref>{{cite web|url=https://www.antarctica.gov.au/nuyina/voyages/2022-2023/|title=2022–2023|website=Australian Antarctic Program|accessdate=22 January 2024|archive-date=20 January 2024|archive-url=https://web.archive.org/web/20240120054436/https://www.antarctica.gov.au/nuyina/voyages/2022-2023/|url-status=dead}}</ref>
=== USCGC ''Storis'' (2024–) ===
On 1 March 2024 the United States Coast Guard issued a notice that they planned to solicit Offshore Surface Vessels LLC for a contract to acquire and service a domestically produced, commercially available icebreaker.<ref>{{cite web|url=https://sam.gov/opp/a12ad39d150d4df0ab6e4773d1cf17d0/view|title=USCG Intent to Sole Source Commercially Available Polar Icebreaker|website=SAM.gov|accessdate=7 March 2024}}</ref> ''Aiviq'' was the only such vessel to meet these previously specified criteria.<ref>{{cite web|url=https://maritime-executive.com/article/u-s-coast-guard-plans-to-buy-the-commercial-icebreaker-aiviq|title=U.S. Coast Guard Plans to Buy Edison Chouest's Icebreaker Aiviq |website=Maritime Executive|accessdate=7 March 2024}}</ref>
The Coast Guard was appropriated $125 million in fiscal year 2024 to purchase ''Aiviq''. The vessel would be homeported in Juneau, Alaska and was expected to reach initial operational capability in 2026.<ref name="uscg_homeport" /> A contract for the vessel's purchase was issued in late December 2024.<ref name="uscg_acquisition">{{cite web |title=Coast Guard issues $125M Aiviq acquisition contract |url=https://www.marinelog.com/news/coast-guard-issues-aiviq-acquisition-contract/ |website=Marine Log |access-date=7 December 2024 |date=5 December 2024}}</ref> After photographs of the ship in red USCG livery were published online, the Coast Guard confirmed that the vessel would be renamed USCGC ''Storis'' (WAGB-21) after a 1942-built medium endurance cutter that, among other accomplishments in the Arctic, became the first United States vessel to circumnavigate North America via the Northwest Passage.<ref name="storis">{{cite web|url=https://www.juneauempire.com/news/reports-juneau-icebreaker-named-after-coast-guards-historic-storis-stationed-here-after-wwii/|title=Update: Coast Guard confirms Juneau icebreaker to be named after historic 'Storis' stationed here after WWII|website=Juneau Empire|date=13 December 2024|access-date=14 December 2024|quote='I can confirm that upon Commissioning, the ship will be named Coast Guard Cutter Storis (WAGB 21), becoming the second Coast Guard Cutter to bear that name,' Lt. Krystal Wolfe wrote in an email to the Empire.}}</ref><ref name="storis2">{{cite web|url=https://www.mycg.uscg.mil/News/article/4016098/coast-guard-adds-first-polar-icebreaker-to-its-fleet-in-25-years/|title=Coast Guard adds first polar icebreaker to its fleet in 25 years|website=United States Coast Guard|date=23 December 2024|access-date=24 December 2024}}</ref>
On 4 June 2025, ''Storis'' departed on her maiden voyage with a hybrid crew consisting of Coast Guard personnel and civilian mariners. The cutter was commissioned in Juneau on 10 August 2025<ref name=ADN_202508114/> but will be temporarily homeported in Seattle together with the other USCG icebreakers until the port facilities in Alaska have been upgraded.<ref name="uscg_20250604" />
==References== {{commons category}} {{clear right}} {{Reflist}}
{{DEFAULTSORT:Storis (WAGB-21)}} Category:2011 ships Category:Icebreakers of the United States Category:Ships built in Louisiana Category:Lafourche Parish, Louisiana Category:Houma, Louisiana Category:Icebreakers of the United States Coast Guard