flying bridge

flying bridge (plural flying bridges)

1. (nautical) A (usually open) area on top of, or at the side of, a ship's pilothouse, serving as an operating station for the officers in good weather or when manoeuvring in port.

   Synonym: monkey island

2. (architecture) An overhead walkway built across a courtyard or atrium space within a building.
3. A temporary floating or suspended bridge or ferrying construction.