lift bridge
bridge structure movable sections towers or piers to support the bridge cables, chains, or hydraulic lifts to raise and lower the bridge sections a road or rail deck a control system to open and close the bridge
lift bridge which has bridge structure lift bridge which has movable sections lift bridge which has towers or piers to support the bridge lift bridge which has cables, chains, or hydraulic lifts to raise and lower the bridge sections lift bridge which is a road or rail deck lift bridge which is a control system to open and close the bridge