FLOOD PROTECTION. Discussion on global best practices. Richard Bonner UK Cities 11 October 2016

Transcription

1 FLOOD PROTECTION Discussion on global best practices Richard Bonner UK Cities 11 October 2016

2 Global trends in flood risk management Flood risks Increased urbanization & vulnerability Increased subsidence in delta s Increased frequency and intensity of extreme events Lowered flood acceptance Solutions More multipurpose flood protection More Building with Nature and Room for the River More private participation & looking for opportunities More local stakeholder and community engagement 31 October

3 Global best practices in flood risk management USA New Orleans after Katrina: flood risk reduction New York after Sandy: city resilience Netherlands Multipurpose Flood Protection Room for the River Building with Nature 31 October

4 New Orleans after Hurricane Katrina: Clear leadership (USACE); clear objective: 1/100 year protection by June 1th 2011; clear and immediate federal budget: 14,45 B$ 31 October

5 New York City Resilience after Sandy: Translating Risk to Resiliency In between Dutch prevention and US reactive approach, based on experiences in NY, combining basic public flood protection with: Additional protection for critical infrastructure: public transport, telecoms, electricity, water, hospitals Tailor made resiliency measures for businesses, buildings, communities Non-structural: building codes, spatial planning, insurance, acceptance, awareness, education 31 October

6 NY temporary flood resiliency proofing NYC Telecom client downtown buildings temporary flood walls 31 October

7 Bay Park WWTP, Nassau County Perimeter flood protection and elevated critical infrastructure $830 million 31 October

8 Critical Facilities: flood proofing NYC Health and Hospitals Corporation Coler Hospital Roosevelt Island Metropolitan Hospital Bellevue Hospital Coney Island Hospital 31 October

9 New York City Subway Restoring the subway system to pre-sandy conditions and protecting it against future storms. 31 October

10 Local stakeholder buy-in and community resilience Competitive and collaborative effort Integrated urban design focusing on resiliency Breakthrough, new thinking, transition, movement, catalyst 31 October

11 Rebuild by Design (RBD): The BIG U Part of HUD competition to respond to Hurricane Sandy s devastation in the northeast Better understand how to redevelop communities BIG U 8 miles of multipurpose flood protection system around Lower Manhattan 31 October

12 BIG U

13 Multipurpose flood protection: connecting the community to the waterfront and providing a more investable solution BIG U

14 Flexible and tailor made multipurpose flood protection in Manhattan: landscaped, spacious integrated green dikes, adding quality and value to the urban environment, but also straightforward and minimal if requeired BIG U

15 Multipurpose flood protection and urban development October 31,

16 Beach resort Katwijk: parking and dike in dune Federal Weak Coastal Links program Multifunctional dike and dune construction Parking garage, improved boulevard and tourism opportunities Hybrid flood protection Dike construction hidden under dune Public Private Partnership National-Regional-Local collaboration 31 October

17 Netherlands Room for the River Program Launched after 1993 and 1995 river floods that forced evacuation of 0.25 million people Extreme river discharges become more frequent, higher dikes alone not enough Multifunctional River widening as an opportunity to add more spatial quality RvR Project Office: combining National, Regional and Local authorities in 1 organisation Combining Public and private funding, multiple projects in 1 program 31 October

18 How will the river be given more room? 31 October

19 Building with Nature Working with, instead of against the forces of Nature Strengthening the coastal ecosystem with enhanced natural sedimentation Cost effective O&M + a new, attractive and adaptive landscape Creating tidal wetlands, combining green and civil engineered solutions Public Private Partnership: innovation + (global) business development Sluice with storm-surge protection Channel & creeks 31 October

20 Multi-layer regional approach to flood risk prevention and climate resilience 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 October

21 Dutch Best Practice: Delay - Store - Discharge 31 October

22 Financing Climate Resiliency: the Resilience Pathway 2.0 Four phases with each three building blocks Phase 1 Scoping phase to identify moments of change Phase 2 Optioneering phase, to create investment opportunities, fundable opportunities Phase 3 Deal structuring phase, detailed design, contracts, business case Phase 4 Implementation of the development 31 October

23 New York Post Sandy: The Big U 10/31/

24 Questions? 31 October