Across
- 2. A structure made of repeated triangles
- 4. A curved structure that is used to span another one
- 8. Structures with beams (planes) and cables supporting them
- 10. A stone at the bottom of an arch
- 11. A force pulling a structure apart
Down
- 1. A supporting structure
- 3. A structure made on another one
- 5. An engineer who designs bridges, roads, etc.
- 6. A structure built to support the pressure of an arch
- 7. A force pushing in on a structure
- 9. To extend from end to end