|
Drydock Number One, Norfolk Naval Shipyard, also known as Drydock No. 1, is the site where the USS ''Merrimack'' was modified to be the Confederate Navy ironclad CSS ''Virginia''. It is now included within the Norfolk Naval Shipyard. It remains in use. The drydock measures in length, and is built of Massachusetts granite, stepped to allow access to and bracing of ships under repair. Original cost was $974,365.65, a very high price for 1827, when work was started. The project was completed in 1834. However, the drydock was first used in June 1833, when the USS ''Delaware'' was drydocked for recommissioning, the first time a large vessel was drydocked in the United States. During the American Civil War the USS ''Merrimac'' was rebuilt in the drydock to become the CSS ''Virginia'' ironclad.〔 The drydock can accommodate a maximum vessel length of with a beam. Depth is . Primarily used for service craft, the dock can be dewatered in 40 minutes and flooded in 90 minutes It was declared a National Historic Landmark in 1971.〔〔 and 〕 ==See also== *List of U.S. National Historic Landmark ships, shipwrecks, and shipyards 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Drydock Number One, Norfolk Naval Shipyard」の詳細全文を読む スポンサード リンク
|