CoCP Part B Chambers Wharf Track Changes

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Code of Construction Practice Part B:Site Specifc Requirements

Chambers Wharf (Track Changes)

December 2013


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Code of Construction Practice Part B

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Code of Construction Practice Part B i

Thames Tideway Tunnel

Code of Construction Practice Part B

Chambers Wharf

List of contents

Page number

1 Chambers Wharf .............................................................................................. 11.1 General .................................................................................................... 1

2 General requirements ...................................................................................... 23 Communications and community/stakeholder liaison ................................. 24 Site operation ................................................................................................... 25 Public access, highway and river transport .................................................. 4 6 Noise and vibration .......................................................................................... 57 Air quality.......................................................................................................... 68 Water resources ............................................................................................... 69 Land quality ...................................................................................................... 710 Waste management and resource use ........................................................... 711 Ecology (aquatic and terrestrial) .................................................................... 712 Historic environment ....................................................................................... 713 Other ................................................................................................................. 8

List of figures

Page number

Figure 1.1 Chambers Wharf: Site context and location plan ....................................... 2


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Code of Construction Practice Part B ii

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CoCP Part B: Chambers Wharf

Code of Construction Part B 1

1 Chambers Wharf

1.1 General

1.1.1 All works covered within this document are to be managed and performedto the culture within the Thames Tideway Tunnel vision of Zero Incidents,Zero Harm, Zero Compromise.

1.1.2 The Code of Construction Practice (CoCP)comprises two parts:

a. Part A: General requirements. These measures are applicableproject-wide.

b. Part B: Site-specific requirements. These are site-specificmeasures, where there are deviations from the general requirementsindicated in Part A.

1.1.3 This document comprises the CoCPPart B for the Thames TidewayTunnel project works at Chambers Wharf site and identifies the detailedsite-specific measures including working hours, site set up and servicingarrangements, taking into account the environmental issues andconsultations with the London Borough of Southwark and otherstakeholders.

1.1.4 For ease of reference the CoCPPart B mirrors the headings in Part A.The CoCPPart B sets out site-specific issues and deviations from Part Aso where there are no site-specific measures reference should be made tothe measures set out in Part A.

1.1.5 A plan showing the location of the site is shown inFigure 1.1 below.


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Figure 1.1 Chambers Wharf: Site context and location plan

Note: For detailed Limits of Land to be Acquired or Used, refer to drawings in the Book of Plans.

2 General requirements

2.1.1 As per text in CoCPPart A.

3 Communications and community/stakeholderliaison

3.1.1 The project willshallconvene a working group with representatives madeup from residents, local councillors, contractors, the employer, and officers

from the London Borough of Southwark.The group will be chaired byeither the Local Authority or an independent person.

4 Site operation

Topic Site-specific requirement

Working hours This site willshalladhere to the following workinghours:

a. standard

b. extended standard


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c. continuous for main tunnel construction.

When other types of working hours (CoCPPart A,Table 4.1) are required, these willshallbe subject to

agreement with the local authority through theSection 61 process.

Site layout The site layout willshallconsider the use of requiredoffices and storage containers or structures asnoise barriers.

Specifically on the southwest corner by ChambersStreet, or western boundary of the site, 3 storeyoffices or equivalent willshallbe considered for useas a noise barrier. This area of the site is closest toSt Michaels School and Axis Court.

The site layout, hoarding and noise barriers on thewest of the site shall be designed where practical tominimise potential sunlight/daylight impacts on thelower floors of Axis Court.

The site layout willshallensure that noisegenerating operations willshallbe located awayfrom sensitive receptors.

Site security / hoardingrequirements

The standard hoarding willshallbe increased to3.6m high around this site.

5m high hoarding/ noise barrier to eastern edge of

site.

The hoarding is to be as defined in CoCPPart Apara. 4.3.4a 4c incorporating planted hoardingsuitable art work on public facing sections.

The local authority shall approve the externalappearance of the hoarding. This approval shall notdelay the erection of the hoarding, if constructionwork needs to commence in order to meet theprogramme. If this occurs, changes to theappearance will be agreed with the local authority

and implemented as soon as practicable thereafter.River works As per text in CoCPPart A.

Other items A site-specific lighting plan is required. The lightingwillshalladdress the impact on terrestrial andaquatic ecology and include the use of low leveldirectional lighting where possible whilst meetingsafe work requirements. The Lighting plan is to besubmitted to the London Borough of Southwark.


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5 Public access, highway and river transport


Site access and gates The security barrier willshallbe positioned to allow astandard rigid tipper vehicle to be wholly off theroad whilst awaiting barrier operation.

The site gates willshallbe solid panels and willshallremain closed, and only opened for vehicle accessand egress, to mitigate against noise and otherimpacts.

Traffic management All vehicles willshallaccess/egress the site from theA200 Jamaica Road via BevingtonStreet/Chambers Street.

The site access willshalloperate as right turn in, leftturn out.

Parking along Chambers Street from the siteentrance to Bevington Street willshallbesuspended.

Sections of parking on Bevington Street at thejunction with Chambers Street willshallbesuspended.

A new pedestrian refuge on Bevington Street 20msouth west of the junction of Bevington Street /Chambers Street willshallbe provided toaccommodate a safe pedestrian crossing.

Signage shall be provided to inform pedestrians andcyclists of safe routes and the presence ofconstruction vehicles.

No scheduled lorry movements to and from the sitebetween the hours of 08:45 and 09:30 and between15:00 and 15:45, to avoid the lorry movements atdrop off and pick upat arrival and departuretimes ofRiverside Primary School. The contractor shallprovide traffic marshals to prevent site lorries

entering Bevington Street at these times.

Event restrictions To be confirmed in consultation with local authorityand Transport for London.

River transport As per text in CoCPPart A.

There will be no movement, loading or unloading ofriver vessels at night (2200 to 0800), deliveredthrough the Transport Strategy securingmechanism.

Chambers wharf shall not be used as a

transhipment site for materials from other worksites.


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6 Noise and vibration


Control measures See hoarding and site layout requirements detailedabove.

The use of low vibration piling, eg. hydraulicjacking/hydraulic press methods, are required forthe construction of the cofferdam where practicableand where ground conditions allow these methodsto be adopted. In the piling methods, the contractorneeds to give consideration to the proximity of

Low vibration piling methods will be used unlessdetermined to be impossible. The first 'anchor' pileswill need to be installed using a vibratory driver.

These anchor piles will be installed at a locationaway from the closest residential sensitivereceptors including Luna House Axis Court and 8-14 Fountain Green Square.

Compaction of material on site willshallbeundertaken using machinery generating the lowestpracticable vibration levels which still enables therequired level of compaction to be completed.Specifically, the use oflarge twin-drum vibratingrollers willshallonlybe used occur on occasions

where vibration levels can be controlled to less thanthe impact criteriaset in the EnvironmentalStatement.

The construction area around the main shaftwillshallbe covered by an enclosure/building duringthe main tunnel construction and secondary liningworks. The building willshallhave cladding with aspecified insitu sound reduction valueof at least20dB. The building openings willshallbe designedto be away from sensitive noise receptors andwillshallbe kept closed when not in use at night.

Only essential use of openings at night.Enclosures with suitable structure and acousticattenuation material required for concrete batchingplant, grout plant, conveyors to load barges andmaterial storage / handling areas.

The material handling area willshallbe screened bya three sided enclosure and roof, clad with suitablenoise attenuation material.

The slurry treatment plant willshallbe screened by afour sided enclosure with roof, clad with suitable

noise attenuation material.Screen or enclose all static plant including


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enhanced enclosure for pumps.

Movement of vehicles on site outside standardhours is toshallbe restricted.

The barge vessel loading area willshallbe locatedto consider the noise impacts on riversideproperties on both the east and west of the site.

2.4m high noise barriershall be erectedon theedge of cofferdam on the east and west sidesof thevessel loading area.

The nNoise barrier on cofferdam is to beconstructed with the transparent plastic (perspex/plexiglass) with a minimum thickness of 6mm and tomeet noise attenuation requirements. Barrier up to1m from ground to be plywood and section above tobe transparent to minimise visual impact. Baselinemonitoring for noise willshallbe undertaken for aminimum of 12 months.

In-road utility works in Chambers Street to havesuitable portable noise barriers including fixingnoise attenuating cladding to any portable steelopen mesh fencing used.

A Trigger Action Plan (TAP) will be developed withRiverside School and all qualifying accommodationin close proximity to the Chambers Wharf work site.

Other For removal of the existing jetty decking piles seePart A. The contractors method is to reducepotential river vibration.

7 Air quality


Vehicle and plant emissions As per text in CoCPPart A.

Dust emissions/control Baseline monitoring for PM10and NO2willshallbeundertaken for a minimum of 12 months, prior to theworks commencing.

Odour As per text in CoCPPart A.

Other As per text in CoCPPart A.

8 Water resources


Control of pollution: All hardstanding (as far as reasonably practicable)


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surface water /groundwater on non-foreshore sites to incorporate permeablesurfacing.

Control on abstraction As per text in CoCPPart A.

Ground treatment / dredging As per text in CoCPPart A.


9 Land quality


Site works As per text in CoCPPart A.

Site-specific issues / mitigation As per text in CoCPPart A.

10 Waste management and resource use


Excavated material As per text in CoCPPart A.

Resource usage As per text in CoCPPart A.


11 Ecology (aquatic and terrestrial)


Protection of habitats Membrane to be installed between river bed andtemporary back fill material to preventcontamination of juvenile fish habitat and benefits inpreserving potential archaeology.

Areas of foreshore used for temporary workswillshallbe restored to similar condition and

material as was present prior to the works.

For removal of piles see CoCPPart A (Section 4.7River works).

Protection of trees As per text in CoCPPart A.


12 Historic environment

Topic Site-specific requirementOther The site-specific heritage management plan for this


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site shall include all heritage assets along thealignment of the tunnel driven from this site wherenot directly affected by other sites.

13 Other




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CoCP Part B Chambers Wharf Track Changes

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