US Navy Arleigh Burke class AEGIS Equipped Guided Missile Destroyer undergoing refit at Marine Hydraulics Industries along the Elizabeth River in Norfolk VA. When needed the scaffolding can be covered with plastic/canvas for protection and a berthing barge is beside her.
Taken from the tour boat Victory Rover.
https://www.navysite.de/dd/ddg72.htm
http://www.navsource.org/archives/05/01072.htm
http://uscarriers.net/ddg72history.htm