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Transcript of Why London needs the Thames Tunnel IEMA Conference 2011 Optimising Infrastructure within...
Why London needs the Thames Tunnel
IEMA Conference 2011Optimising Infrastructure within environmental limits
Tuesday 15 November 2011
London Tideway Improvements
Sewage Works Upgrades
Sir Joseph Bazalgette Sewage Works Upgrades - Mogden
London Tideway Improvements
Sewage Works Upgrades Lee Tunnel
Sir Joseph Bazalgette Lee tunnel construction - Beckton
London Tideway Improvements
Sewage Works Upgrades Lee Tunnel Proposed Thames Tunnel
Sir Joseph Bazalgette Sewer overflow point
Approach to EIA
Integration – EIA / Planning / Design teams co-located by geographic area (West/Central/East)
Mitigation by design, facilitated by co-location and specific EIA and Design team workshops
Consultation – Planning Act requirement to front load consultation
Environmental challenges
London
Scale of project (22 sites in 14 Local Authorities)
Location of CSOs
Working in the foreshore
Key environmental challenges:
– Traffic and transport
– Noise and vibration
– Air quality
– Townscape and heritage
Transport We propose to:
– use the river to transport 90% of excavated material from the tunnel at the main tunnel drive sites
– use the river to bring in and take away the majority of bulk material used to fill the cofferdam at the foreshore sites in the River Thames
– explore opportunities to use rail freight to move material to or from our sites
– take into account the potential impact on the local road network.
Approach to EIA - reporting Preliminary Environmental Information report (PEIR) comprises 28
volumes:
– Vol 1: Introduction
– Vol 2: Proposed Development
– Vol 3: Alternatives
– Vol 4: Scoping opinions and technical engagement
– Vol 5: Assessment Methodology
– Vol 6: Project wide assessment
– Vols 7 – 28: Site Assessment Volumes
PEIR available on website as part of Phase 2 consultation
Sustainable development Challenge of balancing the long term benefits with the
short term construction effects
Reuse of excavated material – options appraisal developed in discussion with Environment Agency
Commitment to use of river for transportation of excavated material
Early development of Code of Construction practice in consultation with EHOs
Sustainability Strategy being promoted and developed by team embedded in project office, looking at whole life cycle of the project
Reasons to act now
Continued overflows, causing environmental damage
Continued health risk to river users
Continued adverse impact on attractiveness of river frontage
Risk of heavy fines being imposed on the UK
Doing nothing will mean:
If the Thames Tunnel is built it will still be functioning in the 22nd century