2. John James Audubon Bridge Main Span

4. Materials and Equipment Cement from Thailand Structural Steel from Japan Oscillator from Germany Wind tunnel analysis from Ontario, Canada

5. Main Span Sequence of Events –Construct drilled shafts –Construct footing –Construct towers –Lay deck –Attach stay cables

6. Drive Permanent Casing Set Permanent Casing In Frame Drive To Grade (Vibratory Hammer)

7. Set Shaft Template The drilled shaft template holds the casing straight as it is vibrated into the ground

8. Drive Permanent Casing A vibratory hammer is used to vibrate the casing into the ground

9. Install Oscillator Layout/Place Oscillator Base And Lock Down Place Oscillator

10. Install Oscillator 1. Set Base

11. 2. Set Oscillator Install Oscillator

12. Drive Temporary Casing Speed has been accelerated An oscillator works like someone is opening and closing a jar (back and forth)

13. Footing Cofferdam Structure Piles and trestle are installed

14. Install Soffit Panels

15. Install Bracing Frame Install first tier of brace frame

16. Erect Pre-Cast Wall Install pre-cast walls Connect to soffit panels and first tier brace frame

17. Install Jacking System Install jacking system with permanent hangers Lower structure to facilitate 2 nd & 3 rd tier bracing installation

18. Install 2 nd and 3 rd tier brace frame. Install Additional Brace Frames

19. Install Follower Sheeting Install sheet pile

20. Lower Structure Lower structure to final elevation Lock off hangers

21. Pour Concrete Seal Install 8 foot concrete seal Oink

22. Dewater Structure Install pump. Remove water

23. Remove Hangers and Cut Casing Remove hangers Cut casing

24. Place Reinforced Pile Cap Place reinforced pile cap concrete

25. Place Pedestal Concrete Place pedestal reinforcing and concrete lift 1 Restrut as required

26. Place Pedestal Concrete Lift 2 Place pedestal concrete lift 2

27. Remove Cofferdam Remove sheeting Remove Bracing Patch blockouts

28. Build Main Span Towers Install formwork & rebar Pour concrete Raise formwork Repeat process

29. Install Girders

30. Build Bridge Deck

31. Install Segmental Sections

32. Bridge Segments Segments are installed in sections Cable anchorage is added Cable stays are installed for support

33. Build bridge in segments Install Cable Stays to support bridge Overall Method of Construction

34. The Finished Bridge