Keynote: Flood risks in a changing climate by Piet Dircke, ARCADIS

1. Flood protection and Climate Adaptation in Cities
NAP Expo, Bonn April 15, 2015
Piet Dircke
Global Director Water Management

2. The 20th century was the century
of nations. The 21st century will
be the century of cities.

3. • New Orleans New York
Rotterdam
Source: Rode Delta’s
2050: majority of world population lives in Coastal Cities
Jakarta
Shanghai

4. Coastal Cities: Driving the World Economy
More People are at Risk from Flooding

5. Imagine the result
Opportunities in urban climate adaptation & flood resiliency
•Sustainable urban water management
•Multifunctional flood protection & economic development
•Living with water & building with nature
•Community resiliency
•Sustainable urban water fronts, linear parks

6. 6
The Netherlands: half of the country
vulnerable to flood risk
Total Vulnerable
to flooding
Surface
Area
41.528 km² 55%
Inhabitants 16,8 million 60%
GNP 700 billion
US$
65%

7. 7
The Netherlands:
Centuries of land reclamation

8. Sea level rise and land subsidence

9. Imagine the result
First Dutch Delta Plan
1
5
4
3
2

10. Imagine the result
The delta under pressure: future
challenges
Sealevel rise
35-85 cm/100y‫‏‬
More /extreme
storms?
More/intense
rainfall
Spatial
developments
Increased
erosion
Subsidence
10 cm/100yr
Salt
intrusion
Decreased
river
discharge
- 60%
Increased
river
discharge
+ 10%

11. Imagine the result
Dutch Delta Plan II:
•Adapting to climate change
•Sea level rise
•Future challenges
•National systems approach
•Living with Water
•Building with Nature
•Room for the River
•Long term 2100 - 2200

12. Multi-layer approach to flood risk prevention
and climate adaptation
1
2
3

13. Dutch Best Practice: Delay - Store - Discharge

14. Multiple Lines of Defense

15. Integrated approach:
Multiple Layers of Defense
3
2
1
Outer Layer of Defense (Regional)
– Larger, engineered solutions
Middle Layer of Defense
– Connecting “transition” zone
Inner Layer of Defense (Local)
- Smaller-scale solutions
- Smart Planning
- Green Infrastructure

16. © 2013 ARCADIS15 April 201516
Source, NYT:
How to Think Like The Dutch in a Post Sandy World

17. © 2013 ARCADIS15 April 201517
Towards Integration
and Collaboration

18. 15 april 2015 Titel van de presentatie
LARGEST PORT OF EUROPE THREE WATERBOARDS
40 KM HARBOUR 612.000 INHABITANTS
2800 KM SEWER SYSTEM 400 KM CANALS + 1000 PUMPING
STATIONS
ROTTERDAM 2014 ROTTERDAM 1652

19. Regio Rotterdam: kwetsbaar
precipitation
Groundwater
Threats coming from 4 directions
Climate change and water challenges

20. 15 april 2015
WATER CHALLENGES ROTTERDAM

21. WATER OPPORTUNITIES ROTTERDAM:
QUALITY IN PUBLIC SPACE

22. ROTTERDAM
APPROACH
100% climate proof
in 2025
+
attractive and
economically
strong city
+
holistic approach
+
LT Vision =>
ST Actionplan

23. ROTTERDAM ADAPTATION
STRATEGY
ROBUST
SYSTEM

24. UNDERGROUND WATER STORAGE

25. UNDERGROUND WATER STORAGE

27. URBAN FLOODPLAIN

28. GREEN ROOFS FOR AN ATTRACTIVE CITY

29. Water Plaza

30. Water Plaza

32. MORE SPACE FOR WATER

33. KWS (NL)Benelux Flood Defence System
Rotterdam revitalized waterfront and floating pavilion
Rotterdam Revitalized Waterfront & Floating Pavilion

34. Rotterdam Multipurpose Urban Dikes Concept

35. KWS (NL)Benelux Flood Defence System
Beach Resort Scheveningen: Dike-under-Boulevard concept

36. New Orleans, USA
Flooded city by Hurricane Katrina in aug. 2005
New Orleans

38. West Closure Complex New Orleans

39. IHNC storm surge barrier New Orleans

40. A Safe city – but were is the water ?

41. New Orleans Dutch Dialogues
INTEGRATED SUSTAINABLE WATER MANAGEMENT STRATEGY

44. Rio Tiete Linear Parks Sao Paulo

45. design sessions

46. Miami South Florida Resilient Redesign

47. Room for the LA River

48. SF Mission Bay
Adapting to Rising Tides

49. 49

51. Temporary flood resiliency proofing
Verizon downtown buildings

52. Imagine the result

53. Critical Facilities: NYC Health and Hospitals Corporation
Coler Hospital – Roosevelt Island
Bellevue Hospital
Metropolitan Hospital
Coney Island Hospital
Imagine the result

54. © 2014 ARCADIS15 April 201554
Bellevue Hospital Emergency Department
Elevated Emergency
Department and Critical
Infrastructure
$280 Million

55. © 2014 ARCADIS15 April 201555
Bay Park WWTP, Southern Nassau County
Perimeter Protection and
Elevated Critical Infrastructure
$830 Million

56. © 2014 ARCADIS15 April 201556
New York MTA Flood Protection and Resiliency (USA)
Perimeter Protection and
Elevated Critical Infrastructure
$830 Million
Restore New York City’s subway system to pre-Sandy
conditions and protect it against future storms. Flood
resilient designs for subway stations, tunnels, bus depots

57. © 2014 ARCADIS15 April 201557
Different Solutions for NYCT
Vent Covers
Watertight Manholes
Conduit Seals
Floodproof Door

58. KWS (NL)Benelux Flood Defence System
NYC Manhattan Seaport City

59. © 2014 ARCADIS15 April 201559
Southern Manhattan Multi-Purpose Levee

60. BIG U – Manhattan
Flip Down Deployables
Elevated Landscapes
BIG U

61. BIG U

62. BIG U

63. BIG U

64. BIG U

65. BIG U

66. BIG U

67. BIG U

68. BIG U

69. BIG U

70. BIG U

71. BIG U

72. BIG U

73. BIG U

74. BIG U

75. Jakarta

76. Urgency: Pluit sea wall 18 October 2013
• more than 4 million people almost unprotected against floods
• Ports, industries, fisheries, infrastructure, power plants culture
• Sustained land subsidence: risk increases by the day

77. • Land below mean sea level 1990
77
In 1990 only 12% of
North Jakarta was
below sea level

78. • Land below mean sea level 2010
78
In 2010 already 58% of
North Jakarta was below
sea level

79. • Land below mean sea level 2030
79
In 2030 more than 90%
of North Jakarta will be
below sea level

80. Jakarta Long-term flood prevention plan
• Pumping stations
80

82. Jakarta NCICD Masterplan

83. Imagine the result
NCICD Solutions: short-medium-long
term
Accelerated sewerage and
waste water treatment
Slowed down subsidence:
piped water supply
Upgraded existing
sea wall and pumps
Large waduk
(pumping lake)
Outer Sea Wall and
land reclamation
Tangerang-Bekasi
Highway
Mainport expansion
Future
Airport

84. Thank you!!