Bridges and Structures

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Across
  1. 3. Physical systems of a business or nation.
  2. 6. Supports the least amount of weight and is best for short distances.
  3. 9. Horizontal member fixed at one end and free at the other.
  4. 10. Plate used to unite multiple structural members of a truss.
  5. 12. This bridge has great natural strength.
  6. 15. A bridge that moves to allow passage for boats or barges.
  7. 17. Part of a bridge between two supports.
  8. 18. A mirror image.
  9. 19. Mechanical fastener that holds metal sheets together in various fabrication works.
  10. 20. A structure built to span physical obstacles.
  11. 21. Force applied to a structure that divides the structure into two sections.
  12. 22. Bridge that can span the longest. Also the most expensive to build.
  13. 23. Weight that changes on a structure, such as vehicles, people, or snow.
  14. 24. Bridge formed from floating units
  15. 25. A twisting force.
Down
  1. 1. Engineer that cleans up contamination, or prevents contamination of the air, soil, and water.
  2. 2. Supported by a number of cables running directly to one or more towers.
  3. 4. The enlarged lower portion of the substructure or foundation.
  4. 5. Used to construct the underwater foundation of a bridge.
  5. 7. The ground end-support of a bridge, especially to resist the horizontal thrust of an arch.
  6. 8. A low, reinforced concrete wall wider at the base, tapering vertically to near mid-height, then continuing straight up to its top.
  7. 9. Engineer that designs roads, buildings, airports, tunnels, dams, bridges, and systems for water supply and sewage treatment.
  8. 11. A framework of one or more triangles.
  9. 13. A force that squeezes material together.
  10. 14. A force that pulls material apart.
  11. 16. Joint that allows for movement of the parts due to thermal or moisture factors.