Engineering Towers Crossword Puzzle

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Across
  1. 1. the _______ was too much for the string that it snapped
  2. 4. rhymes with bus
  3. 6. for the entrance, the builders made an ____
  4. 8. we need a strong _______ in order to support the arch
  5. 9. the _____ made a mistake in the design of the road and construction was delayed
  6. 10. rhymes with bone
Down
  1. 2. Mark was in charge of building the _______, on top of the foundation or supporting structure
  2. 3. the _______ did a bad job of supporting the structure above it and it fell
  3. 5. an person's arm____ is the exact height of them
  4. 7. the opposite of tension