10 types of bridges:
1. **Arch Bridge**: Uses curved structures to support loads, transferring weight to abutments at each end.
2. **Beam Bridge**: The simplest type, consisting of horizontal beams supported at both ends.
3. **Cantilever Bridge**: Projects horizontally into space, supported only at one end.
4. **Suspension Bridge**: Features cables suspended between towers, supporting the deck below.
5. **Cable-Stayed Bridge**: Connects the deck directly to towers with diagonal cables.
6. **Tied-Arch Bridge**: Combines arch and suspension designs, using tension to stabilize the arch.
7. **Truss Bridge**: Composed of interconnected triangles for strength and stability.
8. **Movable Bridge**: Includes designs like swing or lift bridges for boat passage.
9. **Viaduct**: A series of small bridges or arches to cross valleys or gorges.
10. **Pontoon Bridge**: A floating bridge supported by pontoons, often used temporarily.
