Nathan Kram B 1-2 amazing crossword puzzle.

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Across
  1. 3. a reduction in volume.
  2. 7. the distance between to objects or buildings.
  3. 9. a structure in which the weight of the deck is supported by vertical cables suspended from larger cables that run between towers and are anchored at abutments at the end.
  4. 10. a curved symmetrical structure.
Down
  1. 1. a structure built on top of something else.
  2. 2. a central stone at the summit of an arch, locking the whole together.
  3. 3. an engineer who designs and maintains roads, bridges, and similar structures.
  4. 4. an underlying or supporting structure.
  5. 5. a framework consisting of triangles, the strongest geometrical shape.
  6. 6. a strained state or condition resulting from forces acting in opposition to each other.
  7. 8. a structure built to support the later pressure at the ends of the bridge.