Folding bridge
| Ancestor | Plate girder bridge | 
|---|---|
| Related | Lift bridge, submersible bridge, retractable bridge | 
| Descendant | None | 
| Carries | Automobiles, pedestrians | 
| Span range | Short | 
| Material | Steel | 
| Movable | Yes | 
| Design effort | High | 
| Falsework required | No | 
A folding bridge is a type of moveable bridge engineered to fold. This allows ship traffic to pass through the waterway that the bridge spans.
An example of a folding bridge is the Hörnbrücke (Hörn Bridge) in the city of Kiel in the German state of Schleswig-Holstein. When the bridge is down it spans 25.5 metres (84 ft) across the Kiel Fjord, known as the Hörn. The three-segment bascule bridge folds up into the shape of the capital letter N to allow for ship and boat traffic.