"Tyne Bridge" followed in 1972, "English Bridge" (later "Kowloon Bridge") in 1973, "Sir John Hunter" in 1974, "Sir Alexander Glen" in 1975 and finally "Liverpool Bridge" (later "Derbyshire") in 1976.Whilst in commercial service, two of the six "Bridge"-class vessels sank - "Derbyshire" in 1980 and "Kowloon Bridge" in 1986.