Water management and flood protection Connecting and protecting delta’s Piet Dircke, Program Director, GKN Water ARCADIS Imagine the result Contents • ARCADIS Global Knowledge Network Water • • • • Water Management and flood control in Europe Netherlands European Union France • • • • • • Water management and flood control in the USA & Latin America Brazil New Orleans California Florida New York 2 GKN water knowledge exchange NE EUR USA 3 Sea defences: Hondsbosche & Pettemer Zeewering, Zuiderdijk hoorn-Enkhuizen) 4 River dikes and levees: National rivers levees emergency act • • • • 5 “Almost-floods” of 1993/1995 Evacuation of 250.000 people Most of the emergency levee reinforcement works Room for the river, Meuse River works Closure dams: Afsluitdijk Plan Waterlely: Tidal energy, flood protection & ecosystem recovery 6 5 year National levee safety inspection program • Levees, dikes, dunes (category A and B) • 1264 km meets the standard: • 680 km does not meet the standard: 2006 44 % 24 % (2001) (40 %) (19 %) • 931 km ‘no judgement’ 32 % (41 %) 7 Dutch Delta Commission II (2008): adapting to climate change 8 Flood Control 2015: Integration of IT technology • Towards a smart flood control organization • Improve quality of decision making during emergencies • Fast & real time prediction of calculated risks 9 Innovation in materials design: BASF elastocoast, wave & overtopping resistant 10 Storm surge barriers • Design & construction • Risk management 11 Estuaries & coastal restoration Scheldt Estuary: Netherlands and Belgium 12 • European Union: Exchange of Experiences and Comparative Analysis for ICZM Contractor: ARCADIS Sub-contractor: Coastal & Marine Union (EUCC) Jan 2009 – Dec 2011 13 Canal Seine Nord Europe • 2005 by VNF (Voie Navegable France): • Design of lock levelling system, including water saving basins for 7 locks • Nautical design of outer harbours • Design mooring system, wave damping • Design of civil engineering works of the locks (structural and geotechnical) 14 Brazil: Ports of Itajaí & Navegantes • Estimation of additional sedimentation as a result of the executed dredging works • Nautical study, Three dimensional hydraulic flow computations • Vertical ship motion computations & ship manoeuvring simulations • Evaluation of the future layout • Determination of the limiting conditions 15 HPO system New Orleans 16 GIWW Sector Gate 17 IHNC storm surge barrier 18 New Orleans a wake up call: USA Delta’s with opportunities for GKN Water New York City California Bay-Delta Louisiana 19 Florida Everglades California: San Francisco Bay & Delta 20 Florida: SFWMD CERP Comprehensive Everglades Restoration Plan 21 New York: Verrazano Barrier Conceptual design Closed Open 22 Verrazano Narrows Barrier Artist impression 23