swing bridge
US /ˈswɪŋ brɪdʒ/
UK /ˈswɪŋ brɪdʒ/

1.
puente giratorio
a bridge that has a section that pivots horizontally to allow the passage of boats
:
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The large cargo ship waited for the swing bridge to open.
El gran buque de carga esperó a que el puente giratorio se abriera.
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Many historic cities with canals feature beautiful old swing bridges.
Muchas ciudades históricas con canales cuentan con hermosos y antiguos puentes giratorios.