DELIVERING THAMES TIDEWAYDANNY TRUPAPM Thames Valley - 26 April 2016

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YOU POO TOO

https://www.youtube.com/watch?v=eD_kmPIPd84

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LONDON

River Thames C16th

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Lost ‘rivers’ of London

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The Great Stink

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Bazalgette’s interceptor sewers

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20138 million

18602 million

19104 million

Population of London

• In 2014, 62 million cubic metres of sewage discharged to the tidal River Thames.• 50 discharges on average in a typical year

Bazalgette design capacity

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CSO discharge

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FINDING A SOLUTION

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London Tideway Improvements

Riverside

Long ReachMogden

Crossness

Sewage Works UpgradesLee TunnelThames Tideway Tunnel

Beckton

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Impact of improvements

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GreenwichPS

WesternPS

Existing System–CSOvolumeTypical YearCSOVolume(cubic metres)

5,000,000

4,000,000

3,000,000

2,000,000

1,000,000

0

19,418,500

AbbeyMills CSOvolume(cubic metres)

Tideway CSOHammersmith PS

AbbeyMills (see inset)

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Impact of improvements

4

9 No spill

GreenwichPS

WesternPSHammersmith PS

LeeTunnel and STWImprovements –CSOvolumeTypical YearCSOVolume(cubic metres)

5,000,000

4,000,000

3,000,000

2,000,000

1,000,000

0

Tideway CSO

AbbeyMills CSOvolume(cubic metres)

AbbeyMills (see inset)

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Impact of improvements

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9 GreenwichPS

WesternPSHammersmith PS

ThamesTideway Tunnel –CSOvolumeTypical YearCSOVolumes(cubic metres)

5,000,000

4,000,000

3,000,000

2,000,000

1,000,000

0

AbbeyMills (see inset)

Tideway CSO

No spill

AbbeyMills CSOvolume(cubic metres)

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SCOPE

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The Thames Tideway Tunnel

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Tunnelling through London

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Interfaces with existing infrastructure

Bridges: 75

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Victoria Embankment

Main Tunnel

Vortex Shaft

Existing CSO

Connection

Air Treatment

Image: CSO interception

Existing seweragenetwork

New reclaimed area

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Engineering challenges

• Variable ground conditions

• 120 year design life

• Dissipate energy

• minimise air entrapment

• ventilation and odour treatment

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PLANNING AND CONSULTATION

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Route to Development Consent

• Over six years of project development, planning and extensive consultation

• Planning Act 2008

• Public consultation

• DCO application

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Consultation and Community Engagement

30Months

development

9,400Responses

during consultation

Over 200meetings attended

114 days of public

exhibitions held

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PROCUREMENT AND DELIVERY

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Delivery model

• Thames Water, Government and Ofwat

- a range of models to ensure a value for money solution

• A new regulated Infrastructure Provider (IP),

• Bazalgette Tunnel Limited (BTL),

- formed under the Flood and Water Management Act 2010

- Regulated by Ofwat

- Tendered through a competitive process

- build, manage and maintain the tunnel.

• Thames Water will operate

- £1.1bn of investment is from Thames Water,

- £3.1bn is from BTL

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IP at a glance

Revenue collection/ operator of Sewer Network/TWUL Works

Debt Equity Secretary of State

Ofwat

TWUL

System Integrator Contractor

Construction Contractors Project Manager

West Central East

Insurers

100% ownership

Project Licence

Government Support Package

Tideway

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Bazalgette Tunnel Limited (BTL)

1.7 million UK pensioners will have an indirect investment in Tideway.

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Main Contractors

West Central East System Integrator

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OUR VISION

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More than just a sewer

Coping with population

growth

Jobs and skills Tourism Economic

Ecological SMEs Public Health

Environmental Increased river use

Health and Safety

Recreation

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Leaving a legacy

Environment

Health and Safety

Economy

People

Place

• Dramatic reduction in discharges from more than 50 to only 3 or 4 in a typical year

• Three Zeros commitment• Introduce leading lorry and cycling safety initiatives

• Use river transport to remove 90 per cent of spoil from Main Drive sites

• Engage local businesses and SMEs

• 4,000 direct, sustainable jobs• 1:50 apprentice and 1:100 ex-offenders

• Three acres of new foreshore • Enhance Thames Path

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Timetable

2016

Main works preliminary constructionbegins

2017

Tunnelling begins

2021

Tunnelling ends

2023

Project completion

2015• BTL granted

licence by Ofwat

• Main Works contracts awarded

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Blackfriars: Before

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Blackfriars: After

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QUESTIONS?

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