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I n t r o d

u c t i on

I n t r o d

u c t i on

Beckton SewageTreatment Works

Currently, untreated sewage regularly overows into the River Thames from London’s Victorian sewerage systemvia combined sewer overows (CSOs). The proposed Thames Tunnel would intercept these overows through the

use of a new storage and transfer tunnel, which would link west London and Abbey Mills Pumping Station. Thesewage ow would then be transferred to Beckton Sewage Treatment Works via the Lee Tunnel. The reductionin untreated sewage entering the River Thames would bring long-term benets for the environment and users of the River Thames. In order to deliver the project we need a number of sites along the route and this documentidenties our current preferred site at Beckton Sewage Treatment Works.

Thames Tunnel

S i t ei nf or m a t i on p a p er

1

Key facts

Local authority: Newham

Works proposed: Modications to Sewage Treatment Works to cater

for sewage ows from Thames Tunnel project

Duration of main construction works: Approximately four and a half years.



Beckton Sewage Treatment Works

2

Our preferred route for the main tunnel ends at Abbey

Mills Pumping Station where it would connect with the

Lee Tunnel. The Lee Tunnel would then transfer flows

captured by the main tunnel from Abbey Mills Pumping

Station to Beckton Sewage Treatment Works for

treatment.

We need to carry out works at Beckton Sewage Treatment

Works to allow the additional storm flows from the main

tunnel arriving via the Lee Tunnel to be pumped out. The

works would be contained within the boundary of Beckton

Sewage Treatment Works, which is located on the north

bank of the River Thames. The River Roding (Barking

Creek) is to the east of the site and to the west a mixture

of business parks and retail parks on Armada Way. The

works would be carried out in two sites within Beckton

Sewage Treatment Works as shown in Figure 1A.

Section 1: Introduction and site information

Related documents:

Build

Abbey Mills

Pumping StationAMPS

This site information paper sets out our proposals

at Beckton Sewage Treatment Works. We have also

produced project information papers, which cover

overarching topics relating to the project. Where we

consider that a project information paper is particularly

relevant, we have highlighted this in a related documents

box. At the end of this site information paper is a list of

other documents, which may be of interest and a glossary

of terms.



Introduction

3

Figure 1A: Beckton Sewage Treatment Works location plan

Gallions ReachRetail Park

J e n k

i n s

L a n e

Beckton Gas Works

BarkingBarrier

River Thames A r m

a d

a

W a y

B a r k i n

g C r e e k

N

BARKING &

DAGENHAM

NEWHAM

Local authority boundary

Draft limit of land to beacquired or used

Proposed siphon tunnelroute – centreline

Beckton SewageTreatment Works

R o

y a

l

D o c k s R o a

d




4

Section 2: Construction

Construction activitiesThe work would last approximately four and a half years.

The works would normally be undertaken during typical

standard working hours, except where noted, and

consist of:

•Installation of pumps in addition to those already being

installed as part of the Lee Tunnel. The Lee Tunnel

project will build the Tideway Pumping Station and

install four of the six pumps required. As part of theThames Tunnel project we would install the remaining

two pumps.

•Construction of works to transfer the flows from the

Tideway Pumping Station to the inlet works of the

Sewage Treatment Works.

•Installation of additional equipment at the inlet works

of the Sewage Treatment Works.

•A siphon tunnel to transfer tunnel overflows to the Lee

Tunnel overflow shaft, which would be constructed

under continuous working hours.

Related documents:

Managing construction

Works to extend Beckton Sewage Treatment Works have

been approved and have started on site as part of the Lee

Tunnel and Beckton Sewage Treatment Works extension

projects. The works underway have been designed to

ensure that they can accommodate the additional

infrastructure required by the construction of the main

tunnel, and that sufficient treatment capacity will be

available at the works.

Our typical working hours are expected to be:Standard: 8am-6pm weekdays, 8am-1pm Saturday*

Continuous: 24 hours a day, seven days a week**

* Standard working hours would also include, subject to agreement with the local authority:

– a short period (up to one hour) before works start and after they have finished to allow our workers to prepare for work and check the site.

– equipment and machinery maintenance could also take place 1pm-5pm Saturday and 10am-4pm Sunday.

** The main activities taking place 24 hours a day are below ground or within an enclosure.



Construction

C on s t r u c t i on

5

Site layoutThe works would be contained within the site boundaries

shown in Figure 1A, with the exact layout subject to the

construction method chosen by the contractor.

Construction transport and access

We have considered the use of the River Thames to

transport materials to and from this site. However, giventhe need to move relatively small volumes of material, we

consider that it is unlikely to be cost effective. We have

therefore assumed that all materials would be moved

by road. The contractor would however be given the

flexibility to use river transport where they consider it is

practical and cost effective to do so.

Construction traffic would access the site from Alfred’s

Way (A13), through the existing sewage treatment worksentrance off Jenkins Lane. Traffic would leave the site via

the same route. This access route is shown on Figure 2A.

Beyond this, construction traffic would use the major road

network to get to and from its final destination.

As the proposed works would be located within the

operational sewage treatment works, we do not

anticipate that any footpath or road diversions, bus stop

relocations, junction changes or parking bay suspensionswould be required.

Related documents:

Transport




6

Figure 2A: Proposed access route to the site from the nearest major road

N

Royal Docks Road

A1020

Eric Clarke Lane

Jenkins Lane

A 1 3 A l f

r e d ’ s W a y

BARKING & DAGENHAM

NEWHAM

Draft limit of land to beacquired or used

Site access

Local authority boundary

Transport for London(TfL) road network

Proposed lorry access toTfL road network



Construction

7

Management of construction works

Our construction works would be managed in accordance

with an agreed Code of construction practice (CoCP).For phase two consultation, we have produced a draft

CoCP Part A: General requirements, informed by CoCPs

from other major construction projects in London and

consultation with the local authorities. Through the

environmental impact assessment process, scheme-

wide principles to address potential effects on the local

environment have been identified and integrated into

the design. The CoCP Part A sets out scheme-wide control

measures that would be used to minimise potentialeffects during the construction process.

Table 2.1 sets out what we consider to be the key issue

for this site during construction, and how we are currently

proposing to address it.

Issue Our response

Containment of contamination.A strategy would be established to ensure that ground contamination at

the site if found is appropriately managed and contained.

Table 2.1: Key issue relating to construction

Related documents:

Environment




8

This section describes the site after the completion of the

construction work, ie when the main tunnel is in use – the‘operational phase’.

Design

Since phase one consultation which was held between

September 2010 and January 2011, we have progressed

the design for the permanent use and appearance of

the structures at Beckton Sewage Treatment Works. Thedesign of the permanent proposals follows our scheme-

wide principles and takes into account comments made

and ongoing engagement with the London Borough of

Newham and other technical consultees.

Our permanent works incorporate those set out at

Section 2.

Section 3: Future Use

Issue Our response

The layout of the existing sewers

and other infrastructure at Beckton

Sewage Treatment Works.

Careful siting of permanent works to avoid existing above and below ground

infrastructure to enable the site to remain operational during construction.

Table 3.1: Site specific issue that has influenced our permanent design

Table 3.1 sets out the site specific issue that has

influenced our permanent design proposals and howwe are currently proposing to address it in our proposed

design.

Figure 3A provides an illustration of our design proposal.

Further information on the development of our design

can be found in the Design development report.



F u t ur e

u s e

Future use

9

Figure 3A: Layout of site once construction works complete

Installation of additional

equipment at inlet works

Transfer pipelines from pumping station toinlet works following route of Lee Tunneltransfer pipeline, part above ground

New shaft and building

for siphon tunnel

New shaft for

siphon tunnelNew valve chamber

Installation of additionalpumps in TidewayPumping Station

Installation of additionalelectrical equipment inpower complex building

New valve chamber

N




10

Issue Our response

Capacity to process additional

sewage from the tunnel.

The planned extension at Beckton Sewage Treatment Works, which is currently

under construction, would provide sufficient capacity to accommodate and process

the additional sewage flow directed to Beckton Sewage Treatment Works.

Operation and maintenance

Once the tunnel is operational, we expect to undertake

inspection and maintenance of the ventilation andbelow ground equipment approximately once every

three to six months. This will be undertaken within our

site and as part of the existing maintenance routine.

Management of operational effects

We have undertaken technical work, including

stakeholder engagement, to assess and identify the key

issues associated with this site once it is operational.Table 3.2 summarises the issue and how we are

addressing it.

Table 3.2: Key issue relating to site operation



Further information

This section sets out documents which may be of particular interest. Further information on our proposals can be

found on our website (www.thamestunnelconsultation.co.uk) or is available upon request (call our customer centre

on 0800 0721 086).

Phase two public consultation material

Project information papers include general information about the Thames Tunnel project. There are 17 project

information papers, which cover various aspects of the project. Those project information papers that may be of

particular interest are set out below.

Icon Title Details

Build

Provides information on the different types of sites required for the Thames Tunnel

project and the typical construction activities that will be undertaken at each site.

EnvironmentSets out the process the project is following to assess potential environmental

effects of the Thames Tunnel project.

Managingconstruction Includes information on what measures our contractors will put in place at our sitesduring construction.

Options Outlines the various ways to deal with sewage overflows.

OverflowSets out how London’s sewerage system works and why the capital has an overflow

problem.

Route and

tunnel

alignment

Sets out the preferred route of the main tunnel and the reasons for our preference.

TransportContains information on the different transport options we have considered for

delivering and removing materials from our sites.

11



12

Further information

Phase two public consultation material

Site information papers provide information that relate to each preferred site along the route of the Thames Tunnelproject. The following site information paper may be of particular interest.

Abbey Mills Pumping Station

Technical reports

Phase two

constructioninformation

Code of construction

practice Part A: Generalrequirements (CoCP)

Sets out control measures to be adopted during theproject construction period.

Phase two

environmental

information

Preliminary environmental

information report (PEIR)

Contains initial assessments on the environmental

effects of the Thames Tunnel project based on

information collected to date. Please refer to volume

28 of the non-technical summary and volume 28 of

the PEIR for more information on this site.

Phase two

schemedevelopment

Design development report

Provides a general overview of how the scheme

design at each site has evolved to date. Please referto chapter 25 for more information on this site.

AMPS



13

Site glossary

Term Definition

Draft limit of land to be

acquired or used

The extent of land that we may need to use or acquire, or over which rights may be needed

to carry out works that are essential to the project.

Lee TunnelA tunnel, currently under construction, which will intercept the Abbey Mills Pumping Station

CSO, store and then transfer flows onward to Beckton Sewage Treatment Works.

Main tunnel The tunnel from Acton Storm Tanks to Abbey Mills Pumping Station.

Operational phase After the completion of the construction work, when the main tunnel is in use.

Thames Tunnel project

The Thames Tunnel project comprises a storage and transfer tunnel, from west London to

Beckton Sewage Treatment Works in east London, and the control of 34 CSOs along theThames Tideway.

Transport for London

Road Network (TLRN)

The network of roads managed by Transport for London. These are the major or ‘strategic’

roads, which have high capacity.



B kt S T t t W k




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Phase two consultation: Beckton Sewage Treatment Works

For further information or to comment on ourproposals see our website:

www.thamestunnelconsultation.co.uk

110-ED-PNC-00000-000071

Autumn 2011

It is very important that you understand theinformation we have provided. If you needfurther information in another language,braille, large print or audio format pleasecontact us on 0800 0721 086.

p2 beckton stw sip

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