en.Wedoany.com Reported - Canada's Seaspan Shipyards has completed the first major construction block for the Canadian Coast Guard's new heavy polar icebreaker, marking rapid progress in building one of the world's most advanced conventional icebreakers and reflecting Western nations' accelerated expansion of Arctic capabilities.
The Vancouver-based shipyard stated that over 49 blocks are now under construction, one year after the first steel cutting for the vessel. The 158-meter (518-foot) ship is part of a project under Canada's National Shipbuilding Strategy.
Seaspan said in a statement that the first "major block," weighing 330 tonnes and containing the propulsion motor room section, fuel tanks, and void spaces, has now been structurally integrated. Construction at Vancouver Shipyards is progressing on schedule, with additional fabrication work underway at facilities on Vancouver Island.
The icebreaker is designed for year-round operations in high Arctic latitudes with temperatures as low as minus 50 degrees Celsius, requiring exceptionally thick steel plates and specialized welding techniques. Seaspan noted that the propulsion motor foundation uses 50-millimeter-thick steel plates, while other parts of the vessel require plates up to 60 millimeters thick to withstand Arctic ice conditions.
Seaspan CEO John McCarthy said in a press release that one year after the first steel cutting at Vancouver Shipyards, the company has cultivated a highly skilled Canadian workforce capable of welding steel thick enough to traverse Arctic ice.
Upon completion, the 26,000-tonne Polar Class 2 vessel will become the flagship of the Canadian Coast Guard's icebreaker fleet and rank among the world's most powerful conventional icebreakers. The ship is one of two heavy polar icebreakers currently ordered by Canada. Seaspan received the contract for the first vessel in 2025, while Quebec-based Davie Shipbuilding subsequently secured a separate contract to build another heavy icebreaker based on the Polar Max design from Helsinki Shipyard.
This dual-track procurement strategy reflects Western governments' increasing strategic focus on the Arctic as climate change opens northern shipping routes and intensifies geopolitical competition.
Seaspan is also involved in the U.S. Coast Guard's Arctic Security Cutter (ASC) program. Within a consortium led by Bollinger Shipyards, Seaspan collaborated with Finnish icebreaker specialist Aker Arctic Technology (now Railotech) to develop a production-ready icebreaker design for up to six U.S. ASCs. The first vessels will be built in Finland by Rauma Marine Constructions, alongside Bollinger's construction in the United States, before transitioning to larger-scale domestic U.S. production.
Davie Shipbuilding is also participating in U.S. Arctic expansion efforts through a separate ASC contract for up to five patrol vessels, while advancing Canada's Polar Max icebreaker program. Seaspan's rapid construction progress contrasts sharply with the U.S. Coast Guard's troubled Polar Security Cutter (PSC) program. Built by Bollinger in Mississippi, the PSC program aims to deliver the next U.S. heavy polar icebreaker but has faced years of delays and cost overruns. In comparison, Seaspan's heavy icebreaker program, benefiting from Finland's extensive design experience and mature supply chain, has advanced from prototype block testing to full production in approximately two years.
Canadian Coast Guard Commissioner Kevin Brosseau congratulated Seaspan's Vancouver Shipyards on the one-year anniversary progress in building the future heavy polar icebreaker, stating that this milestone reflects the strength of Canadian expertise and partnerships, bringing the country closer to a vessel that will support year-round Arctic operations and Canadian sovereignty for decades to come.
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