Alcatraz Wharf Alcatraz Wharf Alcatraz Wharf is located on the southeast side of Alcatraz Island, in San Francisco Bay, California, US. Classified as building number 33 of the Alcatraz Island National Historic Landmark, its historic name variants were "Alcatraz Dock" and "Alcatraz Pier". It is the main access point to Alcatraz. Another dock on the island's northwest side was only used for rock loading.<ref name="nps.gov/goga"></ref> The wharf contained many of the islands historic buildings, including Building 64 (Alcatraz Defensive Barracks), the Bombproof Barracks, Chinatown, Ranger Office, Garage, Dock Tower, Storage Vault, and Firebox #3. The wharf, or boat dock, was established on
Alcatraz Citadel Grounds were located in the left centre. When the new concrete prison was built in 1910-2, iron staircases in the interior were retained from the old citadel and massive granite blocks originally used as gun mounts were reused as the wharf's bulkheads and retaining walls. Alcatraz Citadel Alcatraz Citadel, also known as Fort Alcatraz, was the original military defense and prison on Alcatraz Island, off the coast of San Francisco, California, United States. The citadel was built in 1859 as a U.S. Army military defense, and began function as a war camp in 1861 and long-term military prison in 1868.