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Code of Construction Practice Part B:Site Specifc Requirements
Acton Storm Tanks (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
Acton Storm Tanks
List of contents
Page number
1 Acton Storm Tanks .......................................................................................... 11.1 General .................................................................................................... 1
2 General requirements ...................................................................................... 23 Communications and community/stakeholder liaison ................................. 24 Site operation ................................................................................................... 35 Public access, highway and river transport .................................................. 3 6 Noise and vibration .......................................................................................... 47 Air quality.......................................................................................................... 58 Water resources ............................................................................................... 59 Land quality ...................................................................................................... 510 Waste management and resource use ........................................................... 611 Ecology (aquatic and terrestrial) .................................................................... 612 Historic environment ....................................................................................... 613 Other ................................................................................................................. 6
List of figures
Page number
Figure 1.1 Site context and location plan .................................................................... 2
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Code of Construction Practice Part B 1
1 Acton Storm Tanks
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-specific measures,where there are deviations from the general requirements indicatedin Part A.
1.1.3 This document comprises the CoCPPart B for the Thames TidewayTunnel project works at Acton Storm Tanks 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 (LB) of Ealing 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 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 As per text in CoCPPart A.
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4 Site operation
Topic Site-specific requirement
Working hours This site willshalladhere to the following workinghours:
a. standard
b. continuous for main tunnel secondary liningphase.
When other types of working hours (CoCPPart A,Table 4.1) are required, these willshallbe subject toagreement with the local authority through theSection 61 process.
Site layout As per text in CoCPPart A
Site security / hoardingrequirements
Hoarding height on the boundary of the site with 1-5Canham Road and with Greenend Road willshallbeincreased from 2.4m to 3.6m.
The hoarding is to be as defined in CoCPPart Apara. 4.3.4a incorporating suitable art work onpublic facing sections.
River works As per text in CoCPPart A.
Other items When mains power is not used, the contractorwillshalldocument why this is the case in advance
to LB of Ealing.
5 Public access, highway and river transport
Topic Site-specific requirement
Site access and gates The site access willshallbe from The Vale viaWarple Way and Canham Road with only a left turninto the site and left turn out. Vehicles willshallegress to The Vale via Canham Road and Stanley
Gardens.
The site entrance willshallbe designed to preventany vehicles over swinging the footpath.
Safe access for construction vehicles willshallbemaintained during winter conditions, along WarpleWay, Canham Road and Stanley Gardens.
The security barrier willshallbe positioned to allow astandard rigid tipper vehicle to be wholly off theroad whilst awaiting barrier operation.
Traffic management Five sections of on street parking on Canham Road,Warple Way and Stanley Gardens willshallbe
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Topic Site-specific requirement
suspended with no re-provision.
Access to a third party vehicle parking area to bereduced to one lane at entrance for short period
during construction. Access for general trafficwillshallbe maintained throughout, unless agreedotherwise with the local authority.
Some temporary parking suspension willshallberequired in a third party vehicle parking area duringconstruction.
The contractor willshallmanage entry and egress ofvehicles across the entrance and potential conflictswith pedestrians crossing, by use of measures suchas traffic marshals. This is particularly forpedestrians going to/from the existing nursery.
The site specific Traffic Management Plan willinclude the London Borough of Ealings preferencefor signage, tactile paving and road markings thatare provided where diversions are in place.
Event restrictions N/A
River transport N/A
Other As per text in CoCPPart A.
6 Noise and vibration
Topic Site-specific requirement
Control measures See hoarding requirements above.
The construction area around the shaft willshallbecovered by an enclosure/building during the maintunnel secondary lining works. The buildingwillshallhave cladding with a specified soundreduction value. The building openings willshallbedesigned to be away from sensitive noise receptors
and willshallbe kept closed when not in use atnight. Only essential use of openings at night.
Movements of vehicles on the site outside standardhours to be restricted.
Enclose with suitable structure and acousticattenuation material the concrete batching plant.
Compaction of the fill material in the storm tankswillshallbe undertaken using machinery generatingthe lowest practicable vibration levels which stillenables the required level of compaction to be
completed. Specifically, the use of large twin-drumvibrating rollers willshallonly be used in locations
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where vibration levels can be controlled to less thanthe impact criteria.
Other As per text in CoCPPart A.
7 Air quality
Topic Site-specific requirement
Vehicle and plant emissions As per text in CoCP Part A.
Dust emissions/control Reference should be made to Part A para. 7.5.1 inagreeing locations and data provisions to LB ofHounslow and LB of Ealing.
Monitoring should incorporate locations to cover
receptors on Greenend Road. Baseline monitoringfor PM10and NO2willshallbe undertaken for aminimum of 12 months prior to the workcommencing. Note that the nearest AURN monitoris currently at North Kensington. The monitoringlayout willshallinclude a continuous monitor locatedat each end of a transect of the site, with regards tothe prevailing wind direction. An additional monitorwillshallbe located at the boundary of the site with2-10 Greenend Road.
Odour As per text in CoCPPart A.Other As per text in CoCPPart A.
8 Water resources
Topic Site-specific requirement
Control of pollution:
surface water / groundwater
As per text in CoCPPart A.
Control on abstraction As per text in CoCPPart A.Ground treatment / dredging As per text in CoCPPart A.
Other As per text in CoCPPart A.
9 Land quality
Topic Site-specific requirement
Site works As per text in CoCPPart A.
Site-specific issues / mitigation As per text in CoCPPart A.
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10 Waste management and resource use
Topic Site-specific requirement
Excavated material Where possible excavated material arising fromworks on site willshallbe utilised to fill the northerntanks.
Resource usage As per text in CoCPPart A.
Other As per text in CoCPPart A.
11 Ecology (aquatic and terrestrial)
Topic Site-specific requirement
Protection of habitats Bird and bat boxes willshallbe installed.
Protection of trees Replanting of moderate quality (prominent) existingtrees with high quality trees upon completion.
See below for details of advance planting.
Other As per text in CoCPPart A.
12 Historic environment
Topic Site-specific requirement
Other As per text in CoCPPart A.
13 Other
Topic Site-specific requirement
Visual Advanced planting to provide tree line screen downeastern boundary and south eastern corner of CSOsite hoarding.
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