CCGS D'Iberville[note 1] was a Canadian Coast Guardicebreaker that was in service from 1952 to 1983 and was Canada's first modern icebreaker. The ship commissioned as CGS D'Iberville for the Department of Transport's Marine Service, using the prefix "Canadian Government Ship", D'Iberville was transferred into the newly-created Canadian Coast Guard in 1962. When launched, she was the largest icebreaker in use by Canada post-World War II until CCGS John A. Macdonald was put in service. In 1984, the icebreaker was renamed Phillip O'Hara before returning to her old name in 1988. In 1989 the vessel was sold for scrap and broken up at Kaohsiung, Taiwan.
In 1972, D'Iberville was one of three icebreaking escorts for a convoy of cargo ships travelling to Mokka Fjord and Eureka. This was the largest convoy to travel that far north into Canada's Arctic. In 1976, in conjunction with CCGS Louis S. St-Laurent, D'Iberville travelled into the Northwest Passage to aid CCGS J.E. Bernier after the small icebreaker damaged both her propellers.[9] In 1981, D'Iberville made her last Arctic voyage.[10] The ship was decommissioned in 1983. The vessel was laid up first at Quebec City, then at Sorel.[3] Renamed Phillip O'Hara in 1984 and back to D'Iberville in 1988, the icebreaker was sold for scrap in 1989 and broken up at Kaoshiung, Taiwan.[2]
Maginley, Charles D. & Collin, Bernard (2001). The Ships of Canada's Marine Services. St. Catharines, Ontario: Vanwell Publishing Limited. ISBN1-55125-070-5.