EntityQ911663· pop 33· linked from 937 articlesbascule bridgeSign in to savemoveable bridge using a counterweight to balance a span through its upward swing to let boats move underneathConnectionsenergyEntitybridgeEntityInternational Standard Book NumberEntitysteam engineEntityweighing scaleEntityLibrary of CongressEntityThunder BayEntitysuspension bridgeEntityviaductEntityaxleEntitycable-stayed bridgeEntitypontoon bridgeEntityarch bridgeEntitydrawbridgeEntityCanadian Pacific RailwayEntityjet bridgeEntitymoveable bridgeEntitycantilever bridgeEntitycounterweightEntityspanEntityCategoriesBascule bridgesBridges by structural type