Technical Advisory in Rainwater Management Dr Mark Fletcher Global Water Leader MILLENIUM PARK CHICAGO
Mark Fletcher Global Water Leader background Arup Fellow (Water) RA Eng Visiting Professor Engineering Design for Sustainable Development Engineering Geologist, Geotechnical Engineer, Civil Engineer Chair River Mersey Task Force
outline context grey + green + blue thinking global examples Copenhagen Hong Kong Bydgoszcz Philadelphia New York City summary CENTRAL PARK NEW YORK
What is expected from an engineer or a technical consultant?
Strategy
Solution
green + blue (+grey) thinking sensitive to water helps to create liveable cities and much more
To confirm that the correct decisions are taken
To assist in driving the change
good green + blue (+ grey) practice from around the globe
CITY OF COPENHAGEN Denmark COPENHAGEN FLOOD 2011
WWW.RAMBOLL.COM Copenhagen Cloudburst Project 610m = cost of rectifying a single flood event in 2011 410m = cost of implementing sustainable drainage project SOURCE: LONDON INFRASTRUCTURE PLAN 2015 LANDSCAPE INSTITUTE POSITION PAPER ON GREEN INFRASTRUCTURE (2012)
Hong Kong
Hong Kong West Drainage Tunnel Multi-disciplinary engineering design & construction supervision: - Drainage interception scheme to improve flood protection of urban catchment of Hong Kong Island. - 10.5km long stormwater tunnel: 4.5km 6.25m dia. + 6km 7.25m dia. (Max. capacity 240 m 3 /sec) - 8km connecting adit tunnels and 32 shafts - 34 catchment intakes Project cost: USD 350M 16
Hong Kong West Drainage Tunnel Catchment Intake Layout Plan 17 Main Tunnel Boring machine 'Oshin' International Tunneling Award 2011
Hong Kong, Development at Anderson Road Site formation (20ha) and infrastructure provision at Anderson Road to support housing development. Investigation, preliminary & detailed design and construction supervision assignment. To avoid adverse impact on the limited capacity of existing drainage system, a flood storage tank (100m (L) x 50m (W) x 4.6m (H) is provided as mitigation measure. Interior of 100m (L) x 50m (W) x 4.6m (H) Flood Storage Tank 18
Tung Chung West New Town Extension, Hong Kong Development details General Development Area about 120 ha Housing Supply Total Population about 25,500 No. of New Flats about 8,650 Employment Job Opportunities about 2,540 Outline Development Plan
Tung Chung West New Town Extension (Hong Kong) green + blue strategies rain garden & infiltration planters filter strip bio-swales
Rotterdam water squares Floodable spaces enjoyed in the wet and dry overflow to the canal system Pitch water storage multifunctional use of urban green space WATER SQUARES, NETHERLANDS URBAN WATER STORAGE, NETHERLANDS
Arup Bosco Verticale Milan
Bosco Verticale Milan AESTHETIC + FUNCTION =BOSCO VERTICALE
Bydgoszcz In Bydgoszcz, one of the largest Polish cities, intensive building development has increased surface water runoff. This is overloading the sewerage system and watercourses, causing flooding.
Integrated Catchment Modelling
Flood prediction in 2050
Blue-green infrastructure potential in Bydgoszcz
The goal is for the city to function as a sponge accumulating water during rainfall events and releasing this precious resource during droughts. We developed a Catalogue of Blue-Green Infrastructure Solutions. Unique and considered as the finest compilation of that kind in country.
Illustrates 20 blue-green infrastructure solutions. Consists of diagrams, design, maintenance and more. Guides urban planners, architects, engineers, water companies & residents towards sustainable storm water management.
Public Relations
Relationship with the Client
USA Source abc7 news
blue + green infrastructure, New York
blue + green infrastructure, New York
Arup blue + green infrastructure, New York
blue + green infrastructure, New York
blue + green infrastructure, New York http://www.arcgis.com/home/webmap/viewer.html?webmap=a3763a30d4ae459199dd01d4521d9939&extent=-74.3899,40.497,-73.3757,40.9523
blue + green infrastructure Red Hook Brooklyn, New York Olin Studio
blue + green infrastructure Red Hook Brooklyn, New York Olin Studio
blue + green infrastructure Red Hook Brooklyn, New York Olin Studio
PHILADELPHIA GREEN CITY, CLEAN WATERS Philadelphia Green City Clean Waters
PHILADELPHIA GREEN CITY CLEAN WATERS INITIATIVE
Conclusions Rainwater management is an open system with many interfaces The technical assistant is to ascertain the Client that the proper solution is chosen The engineers are expected to drive the change not only to design a pipe Grey infrastructure has its place in rainwater management Blue and green infrastructure has an increasing role to play Global best practice can help inform solutions but you need to take account of the context Poland is already embracing some of this: see Bydgoszcz case Embrace this as an opportunity with the new changes in the Water Law in Poland 43
Bradford City Park, Yorkshire Winner of the British Construction Industry Association National Award for Regeneration 2012 Thanks Q&A