Flood protection and Climate Adaptation in Cities NAP Expo, Bonn April 15, 2015

Piet Dircke

Global Director Water Management

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

• New Orleans New York

Rotterdam

Source: Rode Delta’s

2050: majority of world population lives in Coastal Cities

Jakarta

Shanghai

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

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

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

The Netherlands:

Centuries of land reclamation

Sea level rise and land subsidence

Imagine the result

First Dutch Delta Plan

1

5

4

3

2

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%

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

Multi-layer approach to flood risk prevention and climate adaptation

1

2

3

Dutch Best Practice: Delay - Store - Discharge

Multiple Lines of Defense

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

© 2013 ARCADIS 15 April 2015 16

Source, NYT:

How to Think Like The Dutch in a Post Sandy World

© 2013 ARCADIS 15 April 2015 17

Towards Integration and Collaboration

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

Regio Rotterdam: kwetsbaar

pre

cip

itatio

n

Gro

un

dw

ate

r

Threats coming from 4 directions

Climate change and water challenges

15 april 2015

WATER CHALLENGES ROTTERDAM

WATER OPPORTUNITIES ROTTERDAM:

QUALITY IN PUBLIC SPACE

ROTTERDAM

APPROACH

100% climate proof

in 2025

+

attractive and

economically

strong city

+

holistic approach

+

LT Vision =>

ST Actionplan

ROTTERDAM ADAPTATION

STRATEGY

ROBUST

SYSTEM

UNDERGROUND WATER STORAGE

UNDERGROUND WATER STORAGE

URBAN FLOODPLAIN

GREEN ROOFS FOR AN ATTRACTIVE CITY

Water Plaza

Water Plaza

MORE SPACE FOR WATER

KWS (NL) Benelux Flood Defence System

Rotterdam revitalized waterfront and floating pavilion

Rotterdam Revitalized Waterfront & Floating Pavilion

Rotterdam Multipurpose Urban Dikes Concept

KWS (NL) Benelux Flood Defence System

Beach Resort Scheveningen: Dike-under-Boulevard concept

New Orleans, USA

Flooded city by Hurricane Katrina in aug. 2005

New Orleans

West Closure Complex New Orleans

IHNC storm surge barrier New Orleans

A Safe city – but were is the water ?

New Orleans Dutch Dialogues INTEGRATED SUSTAINABLE WATER MANAGEMENT STRATEGY

Rio Tiete Linear Parks Sao Paulo

design sessions

Miami South Florida Resilient Redesign

Room for the LA River

SF Mission Bay Adapting to Rising Tides

49

Temporary flood resiliency proofing

Verizon downtown buildings

Imagine the result

Critical Facilities: NYC Health and Hospitals Corporation

Coler Hospital – Roosevelt Island

Bellevue Hospital

Metropolitan Hospital

Coney Island Hospital

Imagine the result

© 2014 ARCADIS 15 April 2015 54

Bellevue Hospital Emergency Department

Elevated Emergency

Department and Critical

Infrastructure

$280 Million

© 2014 ARCADIS 15 April 2015 55

Bay Park WWTP, Southern Nassau County

Perimeter Protection and

Elevated Critical Infrastructure

$830 Million

© 2014 ARCADIS 15 April 2015 56

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

© 2014 ARCADIS 15 April 2015 57

Different Solutions for NYCT

Vent Covers

Watertight Manholes

Conduit Seals

Floodproof Door

KWS (NL) Benelux Flood Defence System

NYC Manhattan Seaport City

© 2014 ARCADIS 15 April 2015 59

Southern Manhattan Multi-Purpose Levee

BIG U – Manhattan

Flip Down Deployables

Elevated Landscapes

BIG U

BIG U

BIG U

BIG U

BIG U

BIG U

BIG U

BIG U

BIG U

BIG U

BIG U

BIG U

BIG U

BIG U

BIG U

Jakarta

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

• Land below mean sea level 1990

77

In 1990 only 12% of

North Jakarta was

below sea level

• Land below mean sea level 2010

78

In 2010 already 58% of

North Jakarta was below

sea level

• Land below mean sea level 2030

79

In 2030 more than 90%

of North Jakarta will be

below sea level

Jakarta Long-term flood prevention plan

• Pumping stations

80

Jakarta NCICD Masterplan

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

Thank you!!