bateau bridge vs floating bridge

bateau bridge and floating bridge both are nouns.

Word	Noun	Adjective	Verb	Adverb
bateau bridge	Yes	No	No	No
floating bridge	Yes	No	No	No

As nouns, bateau bridge and floating bridge are synonyms defined as:

bateau bridge and floating bridge: a temporary bridge built over a series of pontoons

Other synonyms of bateau bridge include pontoon bridge.

bateau bridge (noun)	floating bridge (noun)
a temporary bridge built over a series of pontoons	a temporary bridge built over a series of pontoons