Swing bridge
swing-bridge-1753001977086-bfa2eb
Description
A swing bridge is a movable bridge that can be rotated horizontally around a vertical axis. It has as its primary structural support a vertical locating pin and support ring, usually at or near to its center of gravity, about which the swing span can then pivot horizontally as shown in the animated illustration to the right.
ID: swing-bridge-1753001977086-bfa2eb
