movable bridge

Noun

A bridge that may be moved in order to open a safe waterway for watercraft.

Japanese Meaning

船舶が安全に通行できるよう、水路を開放するために移動可能な橋。

At dawn, the harbor authority opened the movable bridge to let the tall-masted schooner pass through.

夜明けに港湾当局は背の高いマストを持つスクーナーが通れるように可動式の橋を上げた。

Sense（1）

A bridge that may be moved in order to open a safe waterway for watercraft.

movable bridges

（ plural ）