pontoon bridge; floating bridge
bridge (of a ship)
兵士が川に船橋を架けた。
Soldiers laid a pontoon bridge across the river.
災害復旧のため船橋ができた。
A pontoon bridge was completed for disaster recovery.
歴史展示で、軍が船橋を使い大規模な渡河を行った。
The history exhibit showed armies conducting large-scale river crossings using pontoon bridges.