The Dinosaur Islands of Crystal Palace are having their pedestrian access reinstated with a new, crowdfunded bridge. These images lay out the considerations in site selection, access-and-barrier aspects of bridge, movement, geologic narrative and organic form inspiration, engineering and manufacture, surface finish, maintenance considerations, and visualisations. Comments in lower left of slides.

1. Bridge to the Crystal Palace Dinosaurs
tonkin liu
25 july 2019

2. crystal palace park, 1857

3. 1850 1900 1970
tidal lake

5. dinosaur court

6. option 1
option 2
site access

7. site selection

8. W eir
W eir
Trees
Low er Lak e
Childrens Zoo
TH
ICKET
RO
AD
Statue
Statues
Statues
Statues
SITE 1
SITE 2
site options, weir locations

9. site 1, north weir

10. access to weir for maintenance

11. view to mosasaur sculpture

12. views across lower lake

13. landform falls away from weir

14. secure barrier required

15. site 2, south weir

16. site 2, south weir

17. geological formations part of historic design

18. weir barrier can be obscured through planting

19. views through to lower lake already obstructed

20. creating a secure barrier

21. creating a secure barrier

22. opening / closing structure

23. swing bridge

24. design concept

25. bridge location in time

26. time
chronology of dinosaur court

27. bony fish

28. swing bridge / secure barrier

29. efficient beam

30. laser cutting

31. folding of steel

32. paper straw model

33. wave gives bridge strength

34. 1:1 prototype, cake industries

35. galvanised steel

36. galvanised steel

37. dinosaur swing bridge

38. bridge location plan

39. bridge plan & swing direction

40. Galvanised steel
bridge structure
400mm x 300mm
gabions
Landscape to
meet and cover
gabions
Top of weir Bridge bearing to
sit 50mm above
top of weir
DET 1/104 DET 2/104
Assumed water
depth of 500mm
Puddled clay
lining
Path Average height of
water
Crystal Palace Park
bridge section

41. Tonkin Liu Ltd, 5 Wilmington Square, London WC1X 0ES | 020 7837 6255 | www.tonkinliu.co.uk
no : 526 104
title: proposed elevation
job : dinosaur bridge
scale : 1:50 @ A3
revisions:
50152.5500
227.5225250
Top of weir
DET 1 1:10 DET 2 1:10
bridge embankment and footing

42. slewing bearing

43. Crystal Palace ParkCrystal Palace Park Crystal Palace Park
Dinosaur IslandDinosaur IslandDinosaur Island
bridge chain

44. 1
1 Bridge stopper
Open Position:
Chain slack disappears into water,
bridge aligned and locked via bridge stopper.
Closed Position:
Chain taut and locked.
Turning Chain
1
1
2
2
2
2
bridge locking details

45. dinosaur swing bridge, model

46. ra summer exhibition 2019

47. waving light

48. dinosaur swing bridge, closed

49. dinosaur swing bridge, open