Across
- 3. in Marysville, Union County, OH
- 5. constructed of planks rather than the heavy timbers
- 7. modular shapes which resist stress in multiple directions at once
- 10. wooden, kingpost truss forms the center
- 14. traffic travels between parallel superstructures
- 17. traffic travels through the superstructure
- 18. able to attain longer spans
- 19. concentrates much of its compressive forces through the end panels
- 20. stronger version of the Pratt truss
Down
- 1. superstructure and substructure which are integrated
- 2. the arch may be trussed or solid
- 4. these rely on diagonal bracing
- 6. a type of multiple kingpost truss.
- 8. curved through truss rising above the deck
- 9. traffic travels on top of the main structure
- 11. wooden truss
- 12. carries the deck on top of the arch.
- 13. constructed using curved girder sections
- 15. designed by Thomas and Caleb Pratt in 1844
- 16. used exclusively by Ohio bridge builder Everett Sherman