It is built upon and around an old graving dock. She was the first ship to dock in the newly constructed Alfred Graving Dock. Today, this dock is a separate facility named Esquimalt Graving Dock. The lock and graving dock were operational by 1875. Both Jetty Marsh lock and Graving Dock lock are currently Grade 2 listed. Construction of the graving dock began in late 2013 and was finished in early 2015. The upper graving dock remained in use until closure. A graving dock was provided parallel to the lock. A graving dock is the traditional form of dry dock. Co. Ltd.; the new dry dock opened 1960, known as "Henderson's Graving Dock". From 1887 through 1927 the graving dock averaged work on 21 vessels per year. In the late 1920s, the larger Esquimalt graving dock was completed. The Henderson Graving Dock has been converted into a shipping berth. In 1878 they opened the 'new' or upper graving dock. In August 2009 "Nomadic" was moved to Hamilton Graving Dock, on Queen's Road, Belfast.