KSG - How we chose the preferred site

8/4/2019 KSG - How we chose the preferred site

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100-RG-CP1-PSK2X-000001 | 22 October 2010

Kings Stairs Gardens

How we chose the preferred site


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100-RG-CP1-PSK2X-000001 Printed 22/10/2010


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100-RG-CP1-PSK2X-000001 Page 1 Printed 22/10/2010

1 Introduction

1.1.1 This note provides further explanation of the process followed andreasons for identifying Kings Stairs Gardens as a preferred constructionsite.

1.1.2 Kings Stairs Gardens has been identified as a preferred location for ashaft site to receive the main tunnel boring machines to enable theconstruction of the main tunnel and construction of tunnels to connect tofour combined sewer overflows (CSOs) in the surrounding area and toaccommodate permanent structures required to operate the tunnel.

1.1.3 We are currently at the first phase of public consultation and are seekingviews on our preferred sites. We will consider all the feedback we receiveon this and other sites and what amendments to the project may bepossible in response to those comments.

1.1.4 In order to assist consultees in responding to the consultation, we set outbelow further information on how Kings Stairs Gardens was chosen as apreferred site.

1.1.5 This note is, however, intended as an overview of a lengthy and detailedprocess. We have therefore also provided references to the relevantreports (available on the consultation website: www.thamestunnelconsultation.co.uk) that provide full details of the process undergone.

1.1 The site selection process

1.1.1 Sites have been identified in accordance with our site selection

methodology (SSM) (available on the consultation website). The siteselection process is multidisciplinary in nature and the methodology wasthe subject of two rounds of consultation with affected London boroughsand pan-London stakeholders, resulting in its approval for use in selectingpreferred sites.

1.1.2 The site selection process involves a filtering approach, commencing withidentification of all potential areas of land (excluding concentratedresidential sites and World Heritage sites) and passing sites throughincreasingly detailed levels of assessment to move from a long list to adraft shortlist, a final shortlist and for Phase One Consultation, a list of

preferred sites.1.1.3 The project team used technical knowledge and professional judgement

based on information available at the relevant point in time to evaluatesites.

1.1.4 The SSM recognises the iterative relationship between the site selectionprocess and engineering design and optioneering. Accordingly, as theprocess has progressed, it has been increasingly important to comparesites against engineering requirements. A site must meet engineeringneeds to merit more detailed consideration. An important consideration isthe need to identify sufficient sites, in the right locations, to enable the

scheme to be built.


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1.1.5 The analysis undertaken to date in relation to Kings Stairs Gardens andother sites in the surrounding area is summarised below. Initially, thissummary describes sites we looked at within the London Borough ofSouthwark. It then explains how Kings Stairs Gardens was assessedagainst sites in the relevant neighbouring boroughs of Tower Hamlets and

Lewisham.

Long list sites

1.1.6 A preliminary high-level assessment was undertaken of potential shaftsites on our long list. Table 2.2 in the SSM sets out the considerationsused to assess sites on the long list.

1.1.7 A total of 64 sites in Southwark were eliminated at the long list stage andeight sites identified as suitable for inclusion on the draft shortlist.

1.1.8 Appendix 1 includes details of the assessment of the long list of sites in

Southwark.

Draft shortlist sites

1.1.9 Sites included on the draft shortlist were assessed having regard to theconsiderations set out in Table 2.3 of the SSM. This stage of the processbuilt upon the information gathered and assessment undertaken at longlist stage. The focus at this stage was on more detailed localconsiderations.

1.1.10 The eight sites in Southwark included on the draft shortlist and assessedat this stage were:

S08SK: Open Space to front of Tate Modern

S40SK: Potters Fields Park, Tooley Street

S41SK: Cleared site, Tooley Street/Potters Fields

S45SK: Derelict Site, Chambers Wharf, Chambers Street

S54SK: Kings Stairs Gardens, Jamaica Road

S71SK: Open Space (Durands Wharf), Rotherhithe Street

S72SK: Surrey Docks City Farm, Rotherhithe Street

S74SK: South Dock Marina Boat Yard, Calypso Way.

1.1.11 Meetings were held with affected London boroughs (including LondonBorough of Southwark) and pan-London stakeholders, such as EnglishHeritage and the Environment Agency, to verify that no specific sites orgeneral site location factors were overlooked in the assessment of thedraft shortlisted sites and to seek confirmation that the most appropriatesites had been identified for inclusion on the shortlist.

1.1.12 The results of the assessment of the draft shortlist of sites in Southwarkare summarised in Appendix 2.


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1.1.13 In summary, the outcome of the assessment of the draft shortlist was toretain the following three sites on the shortlist for more detailedassessment as potential main tunnel reception/intermediate shaft sites:


S71SK: Open Space (Durands Wharf), Rotherhithe Street. S74SK: South Dock Marina Boat Yard, Calypso Way.

1.1.14 The assessment of the draft shortlist concluded, at this point, that KingsStairs Gardens was less suitable for use as a main tunnel drive shaft siteand should not be taken forward for further consideration. This conclusionwas revisited when additional engineering considerations becameapparent and were taken into consideration, as described below.

Inclusion of Kings Stairs Gardens and King EdwardMemorial Park as shortlisted main tunnel shaft sites

1.1.15 In the area where the geology in the tunnelling horizon changes fromThanet Sands to Chalk downstream of Tower Bridge, a change in the typeof tunnel boring machine is highly desirable. This is explained further inthe Background Technical Paper(available on the consultation website).As a result, a possible need for a main tunnel drive site in the areadownstream of Tower Bridge was identified.

1.1.16 The shortlist included only one potential main drive shaft site in therelevant area (Shadwell Basin site S020T, in the London Borough ofTower Hamlets). There were a number of engineering factors identified

that make the Shadwell Basin site (S020T) difficult to use and potentiallyundesirable. It was therefore considered necessary to identify additionallocations for main drive shaft sites in the Tower Bridge area to mitigate therisk of the Shadwell Basin site (S020T) not being suitable. As a result,two sites, S54SK: Kings Stairs Gardens and S021T: King EdwardMemorial Park (London Borough of Tower Hamlets), were additionallytaken forward for assessment as main tunnel drive sites (on the basis thatthese represented the sites on the draft shortlist large enough for a maintunnel drive shaft site).

1.1.17 For the reasons outlined below, following further application of the siteselection process in combination with further engineering design, it was

ultimately concluded that none of the three sites (Shadwell Basin, KingEdward Memorial Park or Kings Stairs Gardens) should be selected asmain tunnel drive sites.

Assessment of shortlisted sites

1.1.18 The sites included on the shortlist downstream of the Tower Bridge areawere:

1.1.19 Main tunnel drive, reception or intermediate shaft sites:

S54SK: Kings Stairs Gardens, Jamaica Road (London Borough of

Southwark)

S020T: Shadwell Basin (London Borough of Tower Hamlets)


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S021T: King Edward Memorial Park (London Borough of TowerHamlets)

S065T: Sir John McDougal Gardens, Westferry Road (LondonBorough of Tower Hamlets).

1.1.20 The sites included further downstream on the east side of the RotherhithePeninsula were:

Main tunnel drive, reception or intermediate shaft sites:

S01LM: Convoys Wharf (London Borough of Lewisham)

S02LM: Pepys Park (London Borough of Lewisham).

Reception or intermediate shaft sites only:

S71SK: Open Space (Durands Wharf), Rotherhithe Street (LondonBorough of Southwark)

S74SK: South Dock Marina Boat Yard, Calypso Way (LondonBorough of Southwark)

S070T: Slipway adjacent to Old Bellgate Place, Westferry Road(London Borough of Tower Hamlets).

1.1.21 A site suitability report (SSR) was prepared for each shortlisted sitecontaining an assessment of each site having regard to engineering,planning, environment, property and community considerations. Siteswere assessed by each discipline as suitable, less suitable or not suitable.

1.1.22 Details of the locations of these sites and the recommendations made in

the site suitability reports are provided in Appendix 3. Theserecommendations were taken into account when assessing each siteagainst engineering requirements in order to create the preferred list ofsites, as described below.

1.1.23 Copies of the SSRs for Kings Stairs and Convoys Wharf are attached asrequested. Appendix 3 records the recommendations of the SSRs for theother sites listed above. An SSR was not prepared for Chambers Wharfas it was eliminated at the draft shortlist stage.

1.1.24 A request has been made for the environmental impact assessmentundertaken for Kings Stairs Gardens. The Site Suitability Reportreports

the assessment undertaken by each environmental discipline for KingsStairs Gardens. A full, statutory environmental impact assessment will beundertaken once the route and sites have been selected and will besubmitted with the application for planning permission.

Creation of the preferred list of shaft sites

1.1.25 Consideration of sites up until shortlist stage principally focussed on eachsite as an individual site in isolation from the assessment of tunnel driveand alignment options. However, due to the nature of the scheme, it isnecessary to select a package of sites, paying attention to how they will

work in combination and in relation to the options for main tunnelalignment (ie, the three identified potential routes) and CSO connections.


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1.1.26 The Project Overview Report(available on the consultation website)describes the process of identifying preferred sites, taking into accountengineering requirements. The main points are summarised below.

1.1.27 The engineering team took into consideration possible drive strategies toconstruct the tunnel, paying particular attention to changes in groundconditions and the requirement for different types of tunnelling machines,construction risks and timescales.

1.1.28 The tunnel routes and available shortlisted sites were divided into zonesand multidisciplinary workshops held to identify the most suitableshortlisted site within each zone.

1.1.29 The conclusions reached in the site suitability reports, as described aboveand in Appendix 3, were taken into account and as a consequence, thefollowing sites were selected as the most suitable sites for their respectivezones:

Main drive shaft site or reception/intermediate shaft site for Zone 6 Shad area: S54SK Kings Stairs Gardens.

Main drive shaft site or reception/intermediate shaft site for Zone 7 Limehouse area: S021T King Edward Memorial Park.

Main drive shaft site or reception/intermediate shaft site for Zone 8 Deptford area: S01LM Convoys Wharf.

1.1.30 Sequential comparisons were made of how best to use the potential sitesin Zones 6, 7 and 8 to facilitate construction of the eastern end of thetunnel. These comparisons for the Abbey Mills route are summarised

below. Further explanation is provided in the Project Overview Reportforall three routes.

Comparison 1

1.1.31 A choice had to be made between using a longer route through ConvoysWharf, via Kings Stairs Gardens, or a shorter route past King EdwardMemorial Park. If using Convoys Wharf, the Kings Stairs Gardens sitewould still be needed as a main tunnel reception shaft site and connectiontunnel drive shaft site for the tunnel connecting the Druid Street andconnection tunnel to King Edward Memorial Park CSO interception. Onbalance, it was decided that the shorter route avoiding Convoys Wharfand using Kings Stairs Gardens or King Edward Memorial Park waspreferred. Important considerations in reaching this conclusion were asfollows:

a. The longer route through Convoys Wharf uses one more tunnel boringmachine and has 3km more main tunnel length, which adds significantextra cost, together with additional construction, health and safetyissues associated with tunnelling (these concerns are partially offsetby reduced lengths of connection tunnel).

b. Use of Convoys Wharf would require a larger site if used as double

drive site to Abbey Mills and Kings Stairs, with additional acquisitioncost and risks associated with third-party property interfaces.


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c. The longer route through Convoys Wharf would mean using AbbeyMills as a reception shaft site. This is not considered the mostefficient use of a Thames Water owned site.

d. Heritage concerns associated with use of Convoys Wharf.

1.1.32 It was acknowledged that the longer route using Convoys Wharf as a maintunnel drive shaft site would lead to less conflict with planning policy and areduced impact on nearby communities.

Comparison 2

1.1.33 A choice therefore had to be made between the use of S54SK KingsStairs Gardens or S021T King Edward Memorial Park as a main shaft sitefor the shorter route directly to Abbey Mills. The following factors weretaken into account and resulted in Kings Stairs Gardens being identifiedas the preferred site:

a. Use of King Edward Memorial Park would extend the length of themain tunnel drive and increase the challenges associated withtunnelling in chalk.

b. In planning terms, the distinction between the two sites is made on theavailability of alternative public open space. King Edward MemorialPark is within a defined public open space deficiency area andlocating suitable replacement facilities would be difficult, if notimpossible. Southwark Park is considered a useable alternative toKings Stairs Gardens.

c. While use of King Edward Memorial Park would avoid the creation of

a separate CSO drop shaft, cost and programme issues associatedwith the longer drive outweigh this potential benefit.

d. King Edward Memorial Park is within a conservation area. There areno conservation areas affected by use of Kings Stairs Gardens.There would be less opportunity to mitigate townscape impacts atKing Edward Memorial Park.

e. In environmental terms, both sites have potential to give rise to noisedisturbance and air quality impacts and would require extensivemitigation measures.

f. For both sites, use of special parliamentary procedures may beneeded to secure their use.

1.1.34 On balance, Kings Stairs Gardens was considered more acceptable foruse as a main shaft site. It is, however, recognised that mitigation wouldbe needed to reduce the impact of construction to an acceptable level.

Comparison 3

1.1.35 Having identified Kings Stairs Gardens as the preferred main shaft site, achoice then had to be made between driving from Abbey Mills PumpingStation to Kings Stairs Gardens, or vice versa.

1.1.36 A main tunnel drive shaft site gives rise to greater impacts than a maintunnel reception shaft site and, on balance, it was considered that Abbey


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Mills Pumping Station was a more appropriate main tunnel drive shaft sitefor the following reasons:

a. Abbey Mills is owned by Thames Water.

b. Use of Abbey Mills minimises the impact on public open space and

residential amenity.c. Abbey Mills is relatively unconstrained, although it is identified as a

conservation area.

d. Noise and air quality impacts associated with a main drive shaft sitecan be more easily mitigated at Abbey Mills.

e. After-use structures associated with a main drive shaft site would haveless effect at Abbey Mills.

1.1.37 Therefore, Kings Stairs Gardens was recommended for use as a mainreception shaft site, while allowing for its use as a connection tunnel drive

site, as explained below.1.1.38 Although not included in the initial assessment, subsequent design

development also highlighted potential difficulties with connecting the foursouth-eastern CSO flows (from Druid Street through to Greenwich) andthe north-eastern CSOs (at King Edward Memorial Park and Butcher Row)into a single shaft. This has reinforced a preference for two shafts, oneideally on the south of the river, to connect the south-eastern CSOs intothe main tunnel and a separate shaft on the north of the river to connect tothe north-eastern CSOs.

1.2 Summary and the way forward1.2.1 This note sets out the site selection process to date as it relates to Kings

Stairs Gardens and seeks to explain why it has been identified as apreferred site for Phase One Consultation, while recognising that there arecommunity concerns about loss of public space and environmentalimpacts that need to be mitigated.

1.2.2 If this site is confirmed in due course as the selected site, it would withthe rest of the scheme be the subject of a statutory environmentalimpact assessment that would identify all environmental concerns,necessary mitigation and conclude on the extent of environmental impacts

after mitigation measures have been taken into account. Thedecision-maker for the scheme would, when deciding whether or not togrant planning permission (development consent), have full regard to theconclusions of the environmental impact assessment.

1.2.3 As mentioned above, we are currently at our first phase of consultationand we will listen very carefully to all comments made and take them intoconsideration.

1.2.4 If new information emerges that requires us to revisit our assessment ofKings Stairs Gardens and/or any other sites, we will do this (andundertake a targeted repeat of the site selection process as necessary).


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1.2.5 We will work very closely with the local borough, local residents and otherinterested groups to minimise both the construction and permanent impactof the works.

1.2.6 Further consultation will allow stakeholders, including the public, tocomment on any amendments we have made to the scheme in responseto Phase One Consultation.


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Kings Stairs Gardens Appendices

100-RG-CP1-PSK2X-000001 Appendix 1 Page 1 Printed 22/10/2010

Appendix 1

Sites in London Borough of Southwark eliminated from long list/included ondraft shortlist (Table 2.2 extract and maps)


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Thames Tunnel: Tunnel Shaft Sites

Table 2.2 - Long to Draft Short List of Potential Sites in LB of Southwark

9 10 11 12 13

Planning and Environment

Site ID Site Name Heritage designation Landscape / Townscape Open Space

a a g G

S01SKH.M. Customs & Excise, Upper Ground- medium rise

office towerArchaeology Priority Zone Strategic Cultural Areas

A a g G

S02SK Stamford StreetArchaeology Priority Zone

Opposite two listed buildings- separated by Upper Ground RdStrategic Cultural Areas

A a g G

S03SK Paris Garden- OfficesThe site is located opposite a Listed Building to the west, and adjacent to

another Listed feature in the south east.

r a g G

S04SK Chr is t Chu rc h & G ar den, B lack fr ia rs Road A Listed f ea tu re i s p resent t o t he wes t, adjac en t t o t he c hu rc h Str ateg ic Cul tu ra l Areas

G a g G

S05SK Meymott Street/ Blackfriars Road- Offices Strategic Cultural Areas

a a g G

S06SKExpress Newspaper Offices, Blackfriars Road/ Invicta

Plaza

Archaeology Priority Zone and Listed Building located on opposite side of

crossroadsStrategic Cultural Areas

A a g G

S 07 SK M id -ri se o ff ic e bl oc k, S ou th wa rk S tr ee t

Archaeology Priority Zone and Listed Building located adjacent to the east of

the site.

NOTE: Listed Buildings / features are separated from site by Hopton Street

Strategic Cultural Areas

a a g G

S08SK Open space in front of Tate Modern Archaeology Priority Zone Strategic Cultural Areas

A a g G

S10SK Holland Street- Industria l/ warehous ing Archaeology Priori ty Zone and the site backs on to several listed buildings Strategic Cultural Areas

a a g G

S11SK Southwark Street - offices

Archaeology Priority Zone and the site is located opposite a Listed Building.

NOTE: Southwark street (double carriageway) separates the site from the

Listed Building


A a g G

S12SK Cleared site at Great Suffolk Street/ Princes StreetArchaeology Priority Zone and two Listed Buildings located adjacent to the site

in the north.Strategic Cultural Areas

a a g G

S13SK Great Suffolk Street/ Bear Lane- Warehousing Archaeology Priority Zone Strategic Cultural Areas

a a g G

S14SKGreat Suffolk Street/ Lavington Street- offices & car

parkArchaeology Priority Zone Strategic Cultural Areas

Southwark 2


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1Small site < 5,000m2 : only split site for intermediate (even if used as

split site for main shaft it will only hold ancillary activities and therefore

assessment similar to intermediate)2

'Parked' sites - refer to Memorandum 100-RG-PNC-00000-900031

31 32 33 34 35 36 37 38

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Site ID Site Name Area m2 medium, small1 split sites Other sites to be considered in conjunction with spilt site

To be assessed as in

Table 2.3Assessed by

S01SK H.M. Cus toms & Exc is e, Upper G round- medium ri se of fi ce tower 4 ,488

S02SK Stamford Street 5,438

S03SK Paris Garden- Offices 3,117

S04SK Christ Church & Garden, Blackfriars Road 3,429

S05SK Meymott Street/ Blackfriars Road- Offices 6,975

S 06 SK E xp re ss Ne ws pa pe r Of fi ce s, Bl ack fri ars Ro ad / I nv ic ta Pl aza 6 ,2 08

S07SK Mid-rise office block, Southwark Street 8,071

S08SK Open space in front of Tate Modern 5,273 medium split mainNo other close site is big enough to work as a split main shaft site. Therefore this site can

only be considered for an intermediate shaft site.Intermediate shaft site IML

S10SK Holland Street- Industrial/ warehousing 6,800

S11SK Southwark Street - offices 5,236

S12SK Cleared site at Great Suffolk Street/ Princes Street 3,475

S13SK Great Suffolk Street/ Bear Lane- Warehousing 1,932

S14S K Great Suffolk Street/ Lavingto n Street- o ffices & car park 9,4 79

Southwark 5


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9 10 11 12 13



a a g G

S15SK Lavington Street/ Ewer Street- offices & car park Archaeology Priority Zone Strategic Cultural Areas

a a g G

S16SK Southwark Street - offices Archaeology Priority Zone Strategic Cultural Areas

A a g G

S 17 SK P ar k S tre et / E me rso n S tre et - O ff ic es

Archaeology Priority Zone and a Listed Building is located adjacent to the east

of the site.

NOTE: The site is separated from the Listed Building by Emerson Road.


A a g G

S18SK Sumner S tr ee t/ Emers on S tr ee t- O ff ic es

Archaeology Priority Zone and a Listed Building is located adjacent to the east

of the site.

NOTE: The site is separated from the Listed Building by the crossroads of Park

Street and Emerson Road.


a a g G

S19SKFinancial Times offices, Park Street/ Southwark

Bridge Road

Archaeology Priority Zone and site is adjacent to land which is designated as a

scheduled ancient monument and several Listed Buildings. It is also located in

close proximity to Southwark Bridge, a Listed structure.

NOTE: Park street or Southwark Bridge Road are located between the site and

the scheduled ancient monuments and Listed Buildings.


a a g G

S20SK Lloyds TSB offices, Park Street Archaeology Priority Zone Strategic Cultural Areas

A g g G

S21SK Union Street/ Borough High Street- Primary School

Archaeology Priority Zone and the site is located in close proximity to a Listed

building to the north.

NOTE: The site adjoins the back of the Listed Building

a g g G

S22SK Union Street/ Borough High Street- Primary School Archaeology Priority Zone

A a g G

S23SKWarehousing/ derelict site- Redcross Way/ Union

Street

Archaeology Priority Zone and site is adjacent to a Listed Building.

NOTE: Redcross Way separates the site from the Listed BuildingStrategic Cultural Areas

r a g G

S 24 SK S ou th wa rk Ca th ed ra l, Ca th ed ra l St re etArchaeology Priority Zone and the site is occupied by the Listed Southwark

Cathedral & adjacent to several Listed BuildingsStrategic Cultural Areas

A a g G

S25 SK Guy's Hospi tal, S t. Th omas S treetArchaeology Priority Zone and there are several Listed Building located in close

proximity to the Hospital siteStrategic Cultural Areas

Southwark 7


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31 32 33 34 35 36 37 38

large,




S15SK Lavington Street/ Ewer Street- offices & car park 6,114

S16SK Southwark Street - offices 9,763

S17SK Park Street/ Emerson Street- Offices 3,964

S18SK Sumner Street/ Emerson Street- Offices 4,826

S 19 SK F in an ci al Ti me s o ff ic es, Pa rk St re et / S ou th wa rk Br id ge Ro ad 5 ,2 25

S20SK Lloyds TSB offices, Park Street 1,990

S21SK Union Street/ Borough High Street- Primary School 3,876

S22SK Union Street/ Borough High Street- Primary School 6,436

S23S K W are housi ng/ dereli ct site- Redcross Way/ Union Street 7 ,348

S24SK Southwark Cathedral, Cathedral Street 5,925

S25SK Guy's Hospital, St. Thomas Street 13,285

Southwark 10


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9 10 11 12 13



a a g G

S26SK Guy's Hospital, St. Thomas Street Archaeology Priority Zone Strategic Cultural Areas

r a g G

S27SK Guy's Hospital , St. Thomas Street

Achaeology Priority Zone and the site is in close proximity / overlaps a

scheduled ancient monument in the south west corner, and is located opposite

a Listed Building in the north.


r a g G

S28SK Guy 's Hospital, St. Thomas Street Archaeology Pr iori ty Zone and the site is occupied by several Listed Build ings Strategic Cultural Areas

A a g G

S29SK Off ices , Tooley Street/ London Bridge Archaeology Prior ity Zone and the s ite is located adjacent to a Lis ted Build ing Strategic Cultural Areas

A a g G

S30SK Off ices , Cottons Lane/ Hays Lane Archaeology Prior i ty Zone and the site is adjacent to several l isted buildings Strategic Cultural Areas

r a g G

S31SK Hay 's Ga ller ia , Hay' s Lane/ Counter S tr ee tArchaeology Priority Zone and all / part of the building occupying the site is

Listed.Strategic Cultural Areas

A a g G

S32SKOffices, Commercial, Battle Bridge Lane/ Tooley

Street

Archaeology Priority Zone and located in close proximity to two Listed

Buildings. Strategic Cultural Areas

r a g G

S33SK Hotels or of fices, Tooley Street/ Morgans Lane Archaeology Priori ty Zone and a Listed Build ing occupies the s ite. Strategic Cultural Areas

A a g G

S35SK O ff ic es , Morgans Lane/ Queens Walk Arc haeo logy Prior it y Z one and the si te l ies adjac en t to a Listed Bui ld ing Str ateg ic Cul tu ra l Ar eas

A a g G

S36SKCleared Site potentially developed not clear from

aerial photos, Tooley Street/ Potters FieldsArchaeology Priority Zone and the site lies adjacent to a Listed Building Strategic Cultural Areas

A a g G

S37SK O ff ic es , T oo ley S tr ee t/ Vine Lane Arc haeo logy Prior it y Z one and the s it e l ies adjac en t t o a Listed Bu ilding Str ateg ic Cu lt ur al Ar eas

A A G G

S39SK O ff ic es , V ine Lane/ Weavers Lane Arc haeo logy Prior it y Z one S tr ateg ic Cul tu ra l Areas

Southwark 12


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31 32 33 34 35 36 37 38

large,







S29SK Offices, Tooley Street/ London Bridge 3,623

S30SK Offices, Cottons Lane/ Hays Lane 9,011

S31SK Hay's Galleria, Hay's Lane/ Counter Street 9,136

S32S K Offi ces, Co mmercial , Battl e Bridge Lane/ Tooley Street 5 ,261

S33SK Hotels or offices, Tooley Street/ Morgans Lane 4,086

S35SK Offices, Morgans Lane/ Queens Walk 11,634

S36SKCleared Site potentially developed not clear from aerial photos, Tooley

Street/ Potters Fields7,501

S37SK Offices, Tooley Street/ Vine Lane 3,500

S39SK Offices, Vine Lane/ Weavers Lane 4,627

Southwark 15


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9 10 11 12 13



A A A G

S40SK Po tters Fi elds Park, Tool ey S tree tArchaeology Priority Zone and Listed feature is located adjacent to the south

eastern corner of the site.Strategic Cultural Areas MoL

A a a G

S41SKCleared Site potentially developed not clear from

aerial photos, Tooley Street/ Potters Fields

Archaeology Priority Zone and there are several Listed features located

adjacent to the site.Strategic Cultural Areas MoL

r a g G

S42SKOffice/ Commercial, Queen Elizabeth Street/ Potters

Fields

Archaeology Priority Zone and several Listed Buildings/features are located on

the site.Strategic Cultural Areas

r a g G

S43SKOffices & open space, Tower Bridge Road/ Fair

Street

Archaeology Priority Zone and several Listed Buildings/features are located on

the site, and two other Listed features adjacent.Strategic Cultural Areas

r a g G

S44SKSt. Saviours Dock & New Concordia Wharf, Shad

Thames

Archaeology Priority Zone and Listed Buildings form the majority of the

boundary of the siteStrategic Cultural Areas

a g g G

S45SKDerelict site maybe under redevlopment, Chambers

Wharf, Chambers StreetArchaeology Priority Zone

A g g G

S46SKSt. Michael's RC School, Chambers Street/ Llewellyn

Street

Site is located adjacent to a Listed Building.

NOTE: The site is separated from the Listed Building by Chambers street.

g g g G

S47SKOpen space adjacent to residential properties,

Bevington Street

r g g G

S48SK R iv er side Primary Schoo l, Bev ington S tr ee tArchaeology Priority Zone and a Listed Building is located in the centre of the

site

g g g G

S49SKSt. James's C of E Primary School, St. James's

Road/ Old Jamaica Road

r g g G

S 50 SK I nd ust ri al bu il di ng s, Ol d J am ai ca Ro ad S it e c on ta in s L ist ed B ui ld in g

A g g G

S51SK Cleared Site, Old Jamaice Road/ Frean Street Site is located opposite the Listed St James Church.

r g g G

S52SK St. James' s Churc h, St . J ames 's Road T he bu ilding in the c en tr e o f t he si te is Listed

Southwark 17


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31 32 33 34 35 36 37 38

large,




S40SK Potters Fields Park, Tooley Street 14,376 medium split main S41SKSplit main shaft site

Intermediate shaft siteTA

S41SKCleared Site potentially developed not clear from aerial photos, Tooley

Street/ Potters Fields9,064 medium split main S40SK

Split main shaft site


S 42 SK O ff ic e/ C om me rci al , Q ue en E li za be th S tr ee t/ P ot te rs F ie ld s 4 ,9 36

S43SK Offices & open space, Tower Bridge Road/ Fair Street 10,069

S44S K S t. Saviours Dock & New Concordia W harf, S had Thames 5 ,392

S45SKDerelict site maybe under redevlopment, Chambers Wharf, Chambers

Street13,561 medium split main

No other close site is big enough to work as a split main shaft site. Therefore this site can

only be considered for an intermediate shaft site.Intermediate shaft site TA

S 46 SK S t. Mi ch ae l's RC Sch oo l, Ch am be rs St re et / L le we ll yn St re et 1 4, 21 7

S47SK O pen s pace ad jacent to resident ia l p rope rt ies, Beving ton S tr ee t 4 ,256

S48SK Riverside Primary School, Bevington Street 5,057

S49SKSt. James's C of E Primary School, St. James's Road/ Old Jamaica

Road5,380

S50SK Industrial buildings, Old Jamaica Road 8,953

S51SK Cleared Site, Old Jamaice Road/ Frean Street 4,667

S52SK St. James's Church, St. James's Road 6,005

Southwark 20


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9 10 11 12 13



G g g G

S53SK Southwark Col lege, Drummond Roa d

A g a G

S 54 SK K in g's S ta ir s Ga rd en s, Ja ma ica R oa d

Archaeology Priority Zone and site is located in close proximity to a scheduled

ancient monument and two Listed Buildings, and is opposite a registered park

and garden.

MoL

r g a G

S55SK Southwark Park , Jamaica Road/ Lower Road

The site is a registered park / garden

NOTE: The park appears to be very large and it is likely that a shaft site would

only occupy a portion of it

MoL

A g g G

S 56 SK A lb io n P ri ma ry S ch oo l, A lb io n S tr ee tTwo Listed Buildings in close proximity.

NOTE: Site is separated by roads from Listed Buildings.

A g g G

S57SK Un-maintained open space, Surrey Quays Road One corner of the park backs onto a site occupied by a Listed Building.

G g g G

S58SK Un-maintained open space, Surrey Quays Road

g g g g

S59SK G as Tower & su rr ound ing land, Sa lt er Road

g g g g

S60SK Water Basin, Jamaica Road

g g a G

S61SKFisher Athletic FC grounds, Salter Road/ Lagado

MewsMoL

G g a G

S62SK Mellish Sports Ground, Timber Pond Road MoL

G g a G

S63SK Car park/ repairs yard, Salter Road MoL

a g g G

S64SKPeter Hills with St. Mary's & St. Paul's Primary School

& Sports Ground, Salter RoadArchaeology Priority Zone

Southwark 22


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31 32 33 34 35 36 37 38

large,




S53SK Southwark College, Drummond Road 16,436

S54SK King's Stairs Gardens, Jamaica Road 29,507 large Main shaft site

Intermediate shaft siteIML

S55SK Southwark Park, Jamaica Road/ Lower Road 132,241

S56SK Albion Primary School, Albion Street 5,745

S57SK Un-maintained open space, Surrey Quays Road 11,582

S58SK Un-maintained open space, Surrey Quays Road 10,282

S59SK Gas Tower & surrounding land, Salter Road 9,703

S60SK Water Basin, Jamaica Road 18,669

S61SK Fisher Athletic FC grounds, Salter Road/ Lagado Mews 8,728

S62SK Mellish Sports Ground, Timber Pond Road 24,699

S63SK Car park/ repairs yard, Salter Road 10,829

S64SKPeter Hills with St. Mary's & St. Paul's Primary School & Sports Ground,

Salter Road24,316

Southwark 25


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9 10 11 12 13



a g a G

S65SK Lav endar Pond Natur e Par k, Sal te r Road Arc haeo logy Prior it y Z one MoL

g g a G

S66SK Russia Dock Woodland, Salter Road MoL

G g a G

S67SKOpen space adjacent to resdential, Salter Road/

Nelson WalkMoL

G g a G

S68SKRussia Dock Woodland & Ecological park, Redriff

Road/ Watermanns WalkMoL

g g a G

S69SK Redriff Primary School, Salter Road MoL

G g g G

S70SKHoly Trinity Church & Grounds, Salter Road/

Rotherhithe Street

G g g G

S71SK Open space, Rotherhithe Street Archaeology Priority Zone

G g g G

S72SK Sur rey Dock s Ci ty F ar m, Rothe rh it he S tr ee t Arc haeo logy Prior it y Zone

G g g G

S73SKSalter Road/ Rotherhithe Street Community Centre &

Open Space

r g g G

S74SK Sou th Dock Marina Boat Ya rd , Calypso Way

Archaeology Priority Zone and part of the site boundary is Listed.

NOTE: The Listed feature that forms part of the site, forms a fraction of the

boundary and does not occupy the site e xclusively. There is therefore potential

to minimise impacts.

There are two more Listed Buildings/features in close proximity to the site.

r g g g

S75SK South Dock Marina, Rope street Three Listed Buildings on site

Southwark 27


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31 32 33 34 35 36 37 38

large,




S65SK Lavendar Pond Nature Park, Salter Road 10,286

S66SK Russia Dock Woodland, Salter Road 14,677

S 67 SK O pe n sp ac e a dj ace nt to re sd en ti al , S al te r R oa d/ Ne ls on Wa lk 5 ,1 19

S68SKRussia Dock Woodland & Ecological park, Redriff Road/ Watermanns

Walk116,370

S69SK Redriff Primary School, Salter Road 14,203

S70SK Holy T rini ty Chur ch & G rounds , Sal te r Road/ Ro ther hi the S tr ee t 6 ,653

S71SK Open space, Rotherhithe Street 10,827 medium split main S72SKSplit main shaft site

Intermediate shaft siteIML

S72SK Surrey Docks City Farm, Rotherhithe Street 8,807 medium split main S71SKSplit main shaft site


S73SK Sal te r Road/ Rothe rh it he S tr ee t Commun it y Cent re & Open Space 6 ,975

S74SK South Dock Marina Boat Yard, Calypso Way 9,218 medium split mainNo other close site is big enough to work as a split main shaft site. Therefore this site can

only be considered for an intermediate shaft site.Intermediate shaft site TA

S75SK South Dock Marina, Rope street 24,424

Southwark 30


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S55SK

S53SK

S46SK

S43SK

S50SK

S35SK

S52SK

S56SK

S49SK

S36SK

S48SK

S51SK

S44SK

S42SK

S39SK

S47SK

S37SK

S57SK

SOUTHWARK

TOWER HAMLETS

CITY OF LONDON

S40SK

S45SK

S41SK

S54SK

Preferred List: Shaft SitesSouthwarkSheet 2 of 3

Title:

Map Ref : ............................ 1PL04-SS-01949Date : ................. ................. 20 10/10/11Projection : .......................... British National Grid

0 75 150 225 30037.5

Metres

Mapping reproduced by permission of Ordnance Survey onbehalf of HMSO. (c) Crown copyright and database right 2009.

All rights reserved.Ordnance Survey Licence number 100019345

CH2M HILL accept no responsibility for any circumstances,which arise from the reproduction of this map aft er alteration,amendment or abbreviation or if it issued in part or issuedincomplete in any way.

Area ofmain map

Legend

Local authority boundary (OS)

Draft Short List

No at Table 2.2

Final Short List

No at Table 2.3

Preferred List

Preferred sites on the preferred tunnel route

RAFT&CONFIDEN

TIAL

ThePoint,7th Floor,37NorthWharf Road,Paddington,London W2 1AF

Thames Water Utilities


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S55SK

S68SK

S54SK

S62SK

S75SK

S64SK

S60SK

S66SK

S69SK

S57SK

S63SK

S71SK

S65SK

S58SK

S59SK

S74SK

S72SK

S61SK

S73SK

S70SK

S56SK

S67SK

SOUTHWARK

TOWER HAMLETS

LEWISHAM

Preferred List: Shaft SitesSouthwarkSheet 3 of 3

Title:

Map Ref : ............................ 1PL04-SS-01950Date : ................ ............... ... 2010/10/ 11Projection : .......................... British National Grid

0 75 150 225 30037.5

Metres

Mapping reproduced by permission of Ordnance Survey onbehalf of HMSO. (c) Crown copyright and database right 2009.All rights reserved.Ordnance Survey Licence number 100019345

CH2M HILL accept no responsibility for any circumstances,which arise from the reproduction of this map aft er alteration,amendment or abbreviation or if it issued in part or issuedincomplete in any way.

Area ofmain map

Legend

Local authority boundary (OS)

Draft Short List

No at Table 2.2

Final Short List

No at Table 2.3

Preferred List

Preferred sites on the preferred tunnel route

Not a preferred site

RAFT&CONFIDEN

TIAL

ThePoint,7th Floor,37NorthWharf Road,Paddington,London W2 1AF

Thames Water Utilities


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Appendix 2

1.1 Draft shortlist sites

1.1.1 The eight sites in Southwark that were included on the draft shortlist are

described below and can be seen on the map included as Figure 1.These sites were assessed having regard to the considerations identifiedin Table 2.3 of the SSM. A summary is provided below of the reasonswhy sites were either eliminated at this stage or progressed through to thenext stage of the process (final shortlist). This summary sets out theconsiderations which had most bearing on the decision to select oreliminate sites. The conclusions of all disciplines were however taken intoaccount.

1.1.2 Meetings were held with affected London boroughs (including LondonBorough of Southwark) and pan-London stakeholders such as English

Heritage and the Environment Agency to enable these bodies to verifythat no specific sites or general site location factors were overlooked inthe assessment of the draft shortlisted sites and to seek confirmation thatthe most appropriate sites had been identified for inclusion on theshortlist.

S08SK: Open Space to front of Tate Modern

Eliminated: Planning, environment and community constraints.

1.1.3 Planning/Environment: Due to the cumulative impacts on unitarydevelopment plan (UDP) policy areas, including a strategic cultural area,

open space and an archaeological priority area, and on the basis of theinformation currently available, the site was not recommended to be takenforward to the next stage of the selection process.

1.1.4 Community: Due to potential impacts on community cohesion, the localeconomy, health and wellbeing and equalities considerations, the siteseems to have severe disadvantages from a community impactsperspective. In particular, the presence of national tourist attractions (TateModern and Globe Theatre) next to the site and the likely loss of openspace through use of the site were of concern.

S40SK: Potters Fields Park, Tooley StreetEliminated: Planning, environment and community constraints.

1.1.5 Planning/Environment: S40SK was considered as part of a split main sitein conjunction with S41SK. In the case of both sites, there are a numberof constraints to the use of the sites. Due to the cumulative impacts onUDP policy areas, including Metropolitan Open Land, the Thames PolicyArea, a strategic cultural area, open space and an archaeological priorityarea, as well as proximity to residential receptors, and on the basis of theinformation available, the site was not recommended to be taken forwardto the next stage of the selection process.


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1.1.6 Community: Due to potential cumulative impacts on community cohesion,the local economy, health and wellbeing and equalities considerations, thedisadvantages of this site outweigh the advantages. In particular, thelikely loss of open space through use of the site, disruption to views andeffect on the Thames Path was of concern.

S41SK: Cleared site, Tooley Street/Potters Fields

Eliminated (on basis of consultation with London Borough of Southwarkand other pan-London stakeholders).

1.1.7 The multidisciplinary assessment undertaken by the project teamconsidered this site suitable for progression to the shortlist. However, theLondon Borough of Southwark and other pan-London stakeholders raisedconcerns similar to those expressed for S40SK. The PLA additionallyraised significant concerns over use of river transport at this location.

S45SK: Derelict Site, Chambers Wharf, Chambers Street

Eliminated (on basis of consultation with London Borough of Southwarkand other pan-London stakeholders).

1.1.8 The overall conclusion reached, on balance, by the multidisciplinary teamafter having regard to other relevant material considerations, availableinformation sources, assessments and professional judgements was toretain the site on the shortlist, but to monitor the progress of thedevelopment plans for the site. The property team had, however,recommended not to proceed with this site.

1.1.9 It was, however, noted that demolition had commenced on site,suggesting that it would not in fact be available. Following verification ofthe latest position with London Borough of Southwark, this site waseliminated on the basis that the proposed residential development waslikely to proceed (as at August 2009).


Proceeded to shortlist for consideration as shaft reception/intermediatesite (but eliminated as main drive shaft site due to planning/environmentand community concerns).

1.1.10 The overall conclusion reached by the multidisciplinary team, based onavailable information sources, assessments and professional judgements,was to retain the site on the shortlist for consideration as a shaftreception/intermediate site, subject to mitigation of construction impactsand sensitive siting of plant and operations to minimise impact onresidential occupiers.

1.1.11 It was, however, recommended that it be eliminated at this stage as amain shaft drive site on the basis of the planning/environment andcommunity teams concerns about the greater area of land required.

1.1.12 Planning: Use of the site as a main drive shaft site would impact uponapproximately two-thirds of the proposed site. Given the sites current use


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and proximity of residential occupiers, use of the site as a main drive shaftsite is unlikely to be acceptable.

1.1.13 Community: Due to potential impacts on community cohesion, health andwellbeing and equalities considerations, the disadvantages of this siteoutweigh the advantages. In particular, potential for loss of the openspace and playground on the site is of concern. This site is less suitablefrom a community impact perspective for a main drive shaft site.


Proceeded to shortlist for consideration as shaft reception/intermediatesite, eliminated as split main drive shaft site due to engineering,planning/environment and community concerns.

1.1.14 The overall conclusion reached, based on available information sources,assessments and professional judgements, was to retain the site on the

shortlist, subject to mitigation and concerns noted by the community team(the need to mitigate impact on residential properties and nearby athleticstrack).

1.1.15 The site was eliminated as a split main shaft site (with S72SK) due toengineering, planning/environment and community concerns.

1.1.16 Engineering: Separation between sites (ie, using two separate sites as acombined main drive shaft site) unacceptable.

1.1.17 Planning/Environment: In isolation, S71SK may be acceptable for use asa shaft site with appropriate mitigation, but is not considered suitable incombination with S72SK due to the cumulative impact on planning and

environment considerations.

1.1.18 Community: The loss of green space on site S71SK, combined with theloss of a farm, caf and park facility on S72SK, is not consideredacceptable from a community perspective.

S72SK: Surrey Docks City Farm, Rotherhithe Street

Eliminated: Planning/environment and community concerns.

1.1.19 Planning/Environment: Due to the individual and cumulative impacts onUDP policy areas including borough open land, an area of importance for

nature conservation, the Thames Policy Area and an archaeologicalpriority area, and on the basis of the information currently available, thesite was not recommended to be taken forward to the next stage of theselection process.

1.1.20 Community: Loss of the farm, park and caf was not consideredacceptable in community terms.

S74SK: South Dock Marina Boat Yard, Calypso Way

Proceeded to shortlist for consideration as shaft reception/intermediatesite.


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1.1.21 The overall conclusion reached, based on available information sources,assessments and professional judgements, was to retain the site on theshortlist for further investigation into use of boat yard and listed features.


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Appendix 3

1.1.1 The locations of shortlisted sites and recommendations made for eachsite in its respective site suitability report are as follows:

Zone 6: Shad. Shortlisted and preferred shaft sites


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Zone 7: Limehouse. Shortlisted and preferred shaft sites


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Zone 8: Deptford. Shortlisted and preferred shaft sites


1.1.2 Main drive shaft site: Assessed as suitable by engineering, planning andenvironment disciplines. Assessed as less suitable by property andunsuitable by community.

1.1.3 Reception/intermediate site: Assessed as suitable by engineering,

planning, environment and property, either with or without combinedsewer overflow connections. Assessed as less suitable by communitywithout CSO connections and unsuitable with CSO connections.


1.1.4 Reception/intermediate shaft site: Assessed as suitable by engineeringand property. Assessed as less suitable by planning, environment andcommunity.


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S74SK: South Dock Marina Boat Yard, Calypso Way

1.1.5 Reception/intermediate shaft site: Assessed as suitable by planning,engineering and property. Assessed as less suitable by environment andcommunity.

1.1.6 Reception/intermediate shaft site with CSO connections: Assessed assuitable by engineering and property. Assessed as less suitable byplanning, environment and community.

S021T: King Edward Memorial Park

1.1.7 Main drive shaft site: Assessed as suitable by engineering, environmentand property. Assessed as not suitable by planning and community.

1.1.8 Reception/intermediate shaft site with CSO connection and jetty:Assessed as suitable by engineering, environment and property.Assessed as less suitable by planning and community.

1.1.9 Reception/intermediate shaft site with CSO connection and without jetty:assessed as suitable by all disciplines.

S020T: Shadwell Basin

1.1.10 Main drive shaft site: Assessed as suitable by property. Assessed as lesssuitable by engineering, environment and community. Assessed as notsuitable by planning.

1.1.11 Reception/intermediate shaft site: Assessed as suitable by property.Assessed as less suitable by engineering, environment and community.

Assessed as not suitable by planning.

S065T: Sir John McDougal Gardens, West Ferry Road

1.1.12 Main drive shaft site: Assessed as suitable by engineering, environmentand property. Assessed as less suitable by planning and community.

1.1.13 Reception/intermediate shaft site: Assessed as suitable by engineering,environment and property. Assessed as less suitable by planning andcommunity.

S070T: Slipway Adjacent to Old Bellgate Place, West FerryRoad


S01LM: Convoys Wharf

1.1.15 Main double drive shaft site or main drive shaft site: Assessed as suitableby all disciplines.

1.1.16 Reception/intermediate shaft site: Assessed as suitable by all disciplines.


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S02LM: Pepys Park

1.1.17 Split main drive shaft site (with S01LM): Assessed as suitable byengineering and property. Assessed as less suitable by planning,environment and community.


KSG - How we chose the preferred site

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