POLAR SEA and her sister ship, POLAR STAR, are the world's most powerful non-nuclear icebreakers. Built by Lockheed Shipbuilding and Construction Company of Seattle, Washington, the two powerful icebreakers are based at the Seattle Coast Guard Support Center at Pier 36.
Sea - Icebreakers
The Polar Class icebreakers are two of the largest cutters operated by the Coast Guard. These cutters, specifically designed for open-water icebreaking have reinforced hulls, special icebreaking bows, and a system that allows rapid shifting of ballast to increase the effectiveness of their icebreaking. The Polar Sea and Polar Star were built in the 1970s. They serve in Arctic/Antarctic serving science and research as well as providing supplies to remote stations. Both Polar Class icebreakers are under the control of Pacific Area, Ice Operations Section.