movable bridges
Bridges with one or more spans that are lifted, raised, turned, or slid from their normal position to allow passage of navigation. Examples are vertical-lift bridges, drawbridges, transporter bridges, and swing or pivot bridges.
Bridges with one or more spans that are lifted, raised, turned, or slid from their normal position to allow passage of navigation. Examples are vertical-lift bridges, drawbridges, transporter bridges, and swing or pivot bridges.