Drydock Number One, Norfolk Naval Shipyard

Drydock Number One, Norfolk Naval Shipyard - Credit: Wikimedia Commons

Drydock Number One is the oldest operational drydock facility in the United States. Located in Norfolk Naval Shipyard in Portsmouth, Virginia, it was put into service in 1834, and has been in service since then. Its history includes the refitting of , which was modified to be the Confederate Navy ironclad . It was declared a National Historic Landmark in 1971. and Read more on Wikipedia

type: NRHP
date from: 1827

Source: en.wikipedia.org