Types of bridges

4. Bridge with a curved structure that supports the deck from below
8. Bridge with a deck suspended from cables attached to towers
10. Movable bridge that raises the deck straight up to allow boats to pass underneath
11. Bridge with a roof and sides to protect the wooden structure from weather
12. Movable bridge that folds up vertically to allow tall boats to pass
14. Bridge with a deck supported by horizontal beams called girders
15. Bridge with horizontal beams supported on only one end
17. Bridge built primarily from stone, often in an arch design
18. Bridge designed to carry water, often as part of a canal or irrigation system
20. Portable, pre-fabricated truss bridge developed by the British army

1. Bridge with a deck supported by cables attached directly to towers
2. Bridge with a framework of triangular structures to support the deck
3. Timber bridge with a framework of vertical and diagonal supports
5. Movable bridge that can be raised or lowered using counterweights or motors
6. Simple bridge with a horizontal deck supported by piers at each end
7. Floating bridge supported by buoyant structures called pontoons
9. Arch bridge with a deck that ties the ends of the arch together
13. Long bridge with multiple spans, typically used to cross valleys or gorges
16. Bridge that can be raised, lowered, or rotated to allow tall boats to pass
19. Movable bridge that rotates horizontally on a pivot to allow boats to pass