Across
- 2. A curved symmetrical structure spanning an opening and typically supporting the weight of a bridge, roof, or wall above it.
- 4. A framework, typically consisting of rafters, posts, and struts, supporting a roof, bridge, or other structure.
- 6. An underlying or supporting structure.
- 7. The full extent of something from end to end.
- 8. A masonry mass supporting and receiving the thrust of part of an arch or vault.
- 10. A structure built on top of something else.
- 11. An engineer who designs and maintains roads, bridges, dams and similar structures.
Down
- 1. Building structures in which the main elements that support the load are subject only to forces of extension.
- 3. External force (stress) that tends to crush a material, squeezing its particles closer and shortening the dimension in the direction of its action.
- 5. A central stone at the summit of an arch, locking the whole together.
- 9. Being stretched tight.