Washington State Ferries Hyak turned 50 years old this week. It was the first of four Super Class Ferries built in San Diego in 1967-68. The Hyak was one of five ferries that achieved 100 percent mechanical reliability in 2016. It sailed 51,000 nautical miles without breakdowns or missed trips. Hyak has not been rebuilt since it was constructed. The three other Super Class ferries - Kaleetan, Yakima, Elwha - have been rebuilt.