swing bridge

A span that rotates about a vertical axis, by turning horizontally on a turntable supported on a pier. Also known as pivot bridge, pivot span, turning bridge. (Bucher, 1996) Photo from Baltimore, Maryland, 2025.
swivel bridge

A span that rotates about a vertical axis, by turning horizontally on a turntable supported on a pier. Also known as pivot bridge, pivot span, turning bridge. (Bucher, 1996) Photo from Baltimore, Maryland, 2025.