5.0 CONSTRUCTION METHODOLOGY & PHASING

Branston Road High School Construction Methodology & Phasing

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5.0 CONSTRUCTION METHODOLOGY & PHASING

Introduction

5.1 This chapter describes the anticipated construction methodology and phasing of the

Development. Consideration of likely significant effects on the environment that may arise

during the construction phase, and any necessary mitigation measures, are provided within the

respective technical chapters of this ES.

5.2 Planning for construction is necessarily broad at this stage and may be subject to modification.

This chapter is based on reasonable assumptions and experience and allows assessment of the

realistic “worst case” construction phase effects .

Anticipated Programme

5.3 The construction of the Development is anticipated to commence in 2016, subject to gaining

planning permission, and span approximately 2 years. Following the discharge of pre-

commencement planning conditions and a period of procurement and tendering for the

construction of the Development, project mobilisation and construction activities are likely to

begin in summer 2016. In general terms, the Development will include:

Construction of the school building from summer 2016 to spring 2018

Installation of services in summer / autumn 2016;

Construction of all external works from summer 2016 to summer 2018; and

Offsite highway improvement works from winter 2017 to spring 2017.

5.4 Construction of the new circulation roads and entrance from Branston Road, and the stripping

of top soil and cut and fill of the building footprint, car park areas and external pitches will

form the first phase of development in autumn 2016. Overall, the construction process is

expected to be completed by Summer 2018, with the school ready to receive students for the

September intake of 2018. Table 5.1 shows an indicative construction programme.

Table 5.1: Indicative Construction Phasing

Activities Duration (weeks)

Set up site 4

Cut and fill building footprint 3

Access from Branston Road 8

Construction of car parks and circulation roads 14

Substructure works 14

Frame and floors 22*

Brickwork and casting of ground floor slabs 22*


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Activities Duration (weeks)

Roofing 23*

Superstructure work (Envelope) 34*

Fit out 44*

Installation of services 8

Drainage connection 3

Hard and soft landscaping around school building 32*

Formation of running track and sports pitches 15

Offsite highway improvements 16 * includes two week Christmas break

NB. The above periods overlap, may not happen on consecutive weeks and are indicative dependant on the Main

Contractor’s desired construction programme.

Main construction activities

5.5 No demolition is required to facilitate the construction of the Development. The main

construction activities associated with the Development can be summarised as:

Vegetation clearance and top soil stripping;

Site establishment;

Earthworks construction including movement of materials;

Construction of the school building;

Development of the associated sports fields and tracks; and

Hard and soft landscaping areas.

5.6 An Outline Construction Environmental Management Plan (OCEMP) has been prepared (see

Appendix 5.1) which has been produced to describe how a det ailed CEMP will be developed to

avoid, minimise or mitigate any construction effects on the environment and the surrounding

community when carrying out the associated construction activities. Further information on

the CEMP is provided below.

Outline Construction Methodology

Construction Machinery

5.7 Consideration has been given to the types of plant that are likely to be used during the

construction works. The plant and equipment likely to be associated with each key element of

the construction process is set out in Table 5.2.


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Table 5.2 Plant used during the Construction Process

Type of Equipment Required for Construction Phase

Tracked/wheeled 360 degree excavators

Dumpers

Mobile cranes

Hand held tools including breakers (pneumatic and hydraulic)

Power tools including percussion drills, cutting disks, pipe-threaders

Piling equipment

Wheel washing plant

Scaffold

Mobile access platforms

Delivery trucks

Skips / Skip trucks

Forklift trucks

Ready mix concrete wagons

Concrete placing booms & pumps

Road sweepers

Site Setup and Site Establishment

5.8 Over a period of four weeks, a number of site management proposals will be implemented to

enable the setup of the Site. The aim of the site setup measures is to minimise risk to the

environment and the risks of accidental discharge of pollutants, provide welfare facilities for

staff, ensure security of the site and promote efficient use of resources. Such facilities will

include:

Temporary protective fencing and lighting;

Gatehouse and site security facilities;

Temporary car parking, offices and welfare facilities;

Temporary and secure equipment storage areas;

Emergency spill kits;

Dust management facilities including wheel washing;

Material and plant storage areas; and

Material recycling and waste segregation areas.

5.9 Ancillary site management procedures established during site setup and establishment will

include a strict speed limit, the storage of fuel and oil in accordance with the Control of Pollution

(Oil Storage) (England) Regulations 2001, refuelling will only be undertaken by trained

personnel in a designated area designed to contain contaminated runoff, and the removal of

sewerage effluent from the site office and welfare facilities using a vacuum tanker, if no sewer

connection is available.

5.10 Full details of the site management proposals will be included in the CEMP.


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Access Road Construction and Enabling Works

5.11 The initial stages of the construction will include the new permanent access routes into the

Development, secondary internal circulation roads and car parking areas. It is anticipated that

the internal roads will be constructed up to base-course level and used for construction traffic

routes as the Development is built. A temporary car park constructed to base course level for

all construction personnel vehicles will be developed adjacent to the offices and welfare

accommodation.

5.12 No demolition is required as part of the construction, however, enabling works would take

place in parallel with the access road construction and comprise :

Arboricultural works including:

o protection of trees and vegetation to be retained;

o removal of trees and vegetation where applicable;

Vegetation and general clearance;

Ecological works, where required;

Location and demarcation of existing on site services, where required;

Installation of any site hoardings;

Installation of security, health and safety or tree protection fencing;

Installation of any site or traffic management signage;

Groundworks including topsoil stripping, profiling, and stockpiling for later use;

Drainage mains connection; and

Installation of temporary surface water management measures.

Excavation and Sub-Structure Works

5.13 Excavation work, preparation of ground works and installation of foundations would take place

at this stage. The topsoil would be stripped off using an excavator and placed in a stockpile

using a dumper truck. Soil bunds would be profiled to reduce erosion that could result in

windblown emissions, and located outside of any tree root protection areas, as applicable.

5.14 Sub-structure works may involve:

Surplus soil will be excavated to level the Site in a cut and fill operation;

Localised re-grading within the Site to create level development platforms for the structures;

Excavation for foundations;

Installation of any reinforcement measures, geotextiles or geomembranes, footings, piles

or piers;


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Trenching to allow installation of any below ground services; and

Installation of brickwork, ground slabs (ground bearing or suspended block) and supporting

beams.

Drainage works

5.15 Part of the sustainable drainage (SuDS) system will be constructed during the infrastructure

works when installing the temporary surface water management measures.

5.16 All site works will be undertaken in accordance with the Environment Agency’s (EA) Pollution

Prevention Guidance Note 6 ‘Working at Construction and Demolition Sites’ i. Construction

vehicles will be properly maintained to reduce the risk of hydrocarbon contamination and will

only be active when required. Construction materials will be stored, handled and managed

with due regard to the sensitivity of the local water environment and thus the risk of accidental

spillage or release will be minimised.

5.17 Construction contractors will also take full account of the requirements of the EA’s General

Guide to the Prevention of Pollution of Controlled Waters (PPG1) ii and guidance set out in PPG2

(Above Ground Oil Storage Tanks) iii and PPG3 (The Use and Design of Oil Separators) iv.

5.18 In accordance with the Control of Pollution (Oil Storage) (England) Regulations 2001 v, any

tanks storing more than 200 litres of oil will have secondary bunding. Bunding will be specified

having a minimum capacity of “not less than 110% of the container's storage capacity or, if

there is more than one container within the system, of not less than 110% of the largest

container's storage capacity or 25% of their aggregate storage capacity, whichever is the

greater.” Any above ground storage tanks will be located on a designated area of hardstanding.

No underground storage tanks will be used during the construction period. Storage of liquids

such as degreasers, solvents, lubricants and paints will be in segregated, bunded enclosures.

5.19 The construction drainage system will be designed and managed to comply with BS6031 “The

British Standard Code of Practice for Earthworks” vi, which details methods that should be

considered for the general control of drainage on construction sites. Further advice is

contained within the Geotechnical Design, General Rules (BS EN 1997) vii which should be read

in conjunction with Basis of Structural Design (BE EN 1990) viii.

Construction of Superstructure

5.20 This stage will involve the construction of the main building structure and will include the

pouring of concrete, the installation of steel frames, load bearing brick walls, reinforced


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masonry and the external building fabric.

Fit Out

5.21 Fit out of the Development will involve the installation of block work party walls, dry lining to

internal walls, internal walls, mechanical and electrical installations.

Landscaping and planting

5.22 Planting and hard and soft landscaping works will be carried out around the school building

and car parks as part of the external works. This will involve some ground modelling works and

the establishment of green spaces within the Site including soil preparation, tree and vegetation

planting, seeding, and the creation of footpaths and circulation areas using tarmacadam.

5.23 The ground modelling works will be undertaken concurrently with the site preparation and

substructure works outlined above. The completion of the external running tracks, football

pitches and associated areas will be undertaken in the spring and summer of 2017 whilst soft

landscaping and planting will be undertaken as one of the last phases of development in spring

2018.

Material and Resource Use

5.24 The primary construction materials to be used will include concrete, brick, steel post and beams

and timber. Where possible, materials and resources used during the construction of the

Development will be sourced from the local area. A proportion of timber will be purchased from

responsible forest sources. In terms of material selection, ‘A’ rated materials from the Building

Research Establishment’s Green Guide to Specification ix will be preferred.

Construction Phase Vehicle Movements

5.25 Construction vehicle movements will be managed to minimise the impact on the local road

network. Over the construction period it is anticipated there will be approximately 4,460 Heavy

Good Vehicle (HGV) deliveries. This equates to an average of approximate ly 59 deliveries per

week and 12 deliveries per day. There will be approximately 64 two-way car/van movements

per day associated with construction personnel who would be employed at any one time on the

Site.

5.26 The HGV movements would be dispersed across the working day outside of the AM and PM

peak periods.


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Construction Traffic Access and Management

5.27 All vehicles will approach the Site from the A38 Lichfield Road and will enter the Site via

Branston Road, and no deliveries will be taken through Tatenhill village to the west. A

Construction Traffic Management Plan (CTMP) will be developed and implemented which

identifies the safest, most direct and most effective routes to the necessary areas of the Site.

The Contractor will define the method of delivery and removal of materials and plant from the

Site, including the identification of access routes for deliveries and personnel.

5.28 If abnormal or oversized loads are required to deliver materials to the Site, notice will be given

to East Staffordshire Borough Council (ESBC), depending on the routing, and also the Police,

the Fire Brigade, and other emergency services, sufficiently in advance of the required closure

or diversion dates. Should any hazardous materials arise during the course of the works, these

materials will be transported to a licensed disposal site using permitted routes as identified in

the CTMP.

5.29 All vehicle unloading will take place within the Site and will not take place on the public

highway. Orders will be scheduled to avoid over-ordering and over-delivery of items and will

be placed as required to avoid unnecessary stock piling and storage. Deliveries will be

controlled and supervised, and scheduled to avoid peak traffic periods where po ssible. Signage

will be used to identify access routes and to inform motorists that local roads are

accommodating construction traffic.

5.30 All management of construction traffic and access will be carried out in accordance with the

CTMP as set out below:

Planning and managing both vehicle and pedestrian routes;

The elimination of reversing, where possible;

Safe driving and working practices;

Protection to the public;

Adequate visibility splays and sight lines;

Provision of signage and barriers;

Wheel cleaning facilities;

Provision of information to local communities and a point of contact; and

Adequate parking for off-loading storage areas.

Controls to Protect the Environment

5.31 As set out above, an OCEMP (see Appendix 5.1) has been prepared, this will be used to develop


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a detailed CEMP.

5.32 The environmental controls (or mitigation measures) to eliminate, reduce or offset likely

significant adverse effects on the environment during the construction phase are identified

below. It is anticipated that these controls will be secured by appropriately worded planning

conditions or obligations:

Preparation of a CEMP including the CTMP, which clearly sets out the methods of managing

environmental issues for all involved with the construction works, including supply chain

management;

Requirement to comply with the CEMP included as part of the contract conditions for each

element of the work. All contractors tendering for work will be required to demonstrate that

their proposals can comply with the content of the CEMP and any conditions or obligations

secured through the planning permission;

In respect of necessary departures from the above, procedures for prior notification to ESBC,

as appropriate, and affected parties will be established;

Establishing a dedicated point of contact and assigning responsibility to deal with

construction related issues if they arise. This will be a named representative from the

construction team;

Production of a newsletter to be circulated to the surrounding neighbours and authorities;

and

Regular dialogue with ESBC and the local community.

5.33 The preparation of a CEMP is an established method of managing environmental effects

resulting from construction works.

5.34 The CEMP will be submitted to SCC and ESBC (and other statutory authorities) prior to the

commencement of the works. Compliance with the CEMP will be to be secured by planning

condition. The structure of the CEMP will be based on the OCEMP (Appendix 5.1) and will

include the following:

A table showing the objectives, activities (mitigation/optimisation measures), and

responsibilities for the implementation of those activities;

The broad plan of the work programme including working hours and delivery times;

Details of prohibited or restricted operations (location, hours etc.);

Institutional arrangements for its implementation and for environmental monitoring:

responsibilities, role of the environmental authorities, participation of stakeholders;

Contact during normal working hours and emergency details outside working hours;

Provision for reporting, public liaison, and prior notification of particular construction related


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activities;

The mechanism for the public to register complaints and the procedures for responding to

such complaints; and

The details of proposed routes for HGVs travelling to and from the Site.

Contamination Prevention

5.35 Efficient protocols will be developed and communicated effectively to the workforce, in order

to minimise the risk of spillages on site. The Site will monitor and contain hazardous materials

to reduce harmful spills and contamination into the local environment. All materials will be

stored and handled carefully to avoid spillage of liquids or powders. No materials will be stored

within 10m of any watercourse or drain. Other measures include:

Bunded areas will be set up within the site compound for all refuelling. Spillage and cleaning

equipment will also contained

Operatives will be specially trained in cleaning up any spillages

Site machinery will be stored in an appropriate manner to prevent soil contamination;

Control of Materials Hazardous to Health (COSHH materials) and secure storage; and

Emergency spill kits will in place and ready use in the event of any spillage.

Minimising Dust and Mud

5.36 Maintaining clean vehicles especially wheels will help to prevent mud and dirt from depositing

on the surrounding roads. Potential dust and mud issues and potential control measures

include:

A strict site speed limit will help to minimise emissions

Dampen areas to minimise dust from excavation

Suitable wheel washing facilities for vehicles leaving site

Fitting of dust bags to tools

Use premixed mortar where possible to minimise dust from brickwork

Dampen areas and use vacuums to collect the majority of the dust

All HGVs carrying loose material which has the potential to give rise to dust during transit

shall be sheeted to minimise emissions

Drop heights will be minimised when loading vehicles to minimise the potential for noise or

dust creation.

Mist dust suppression equipment to be utilised.


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Minimising Noise Pollution

5.37 The principles of Best Practicable Means should be employed to minimise noise levels during

construction, and specific work methods and constant monitoring should help to minimise noise

and noise-related complaints. For example, hydraulic plant will be used in preference to

pneumatic plant where possible, plant and equipment will be maintained in good working order

and fitted with silencers and acoustic panels where appropriate, and plant will be shut down

or throttled back between periods of use. Acoustic enclosures may be required for fixed plant

such as generators.

Protection of Birds and Bats

5.38 Construction works, including vegetation clearance, have the potential to impact upon breeding

birds by causing direct harm and disturbance if timed to occur during the nesting season

(generally March to September inclusive). To minimise the risk to nesting birds, Site clearance

works will be timed to occur outside the nesting season or, where this is not possible, habitats

to be impacted will be inspected by a suitably qualified ecologist prior to clearance. Where

active nests are present, a protective buffer zone will be implemented in which no disturbanc e

will be permitted until the young have fledged and the nest has been abandoned naturally.

5.39 Predicted construction phase impacts on bats are associated with the loss of trees offering

potential roost features, and disturbance to foraging and commuting bats as a result of

construction phase lighting. To mitigate for the loss of trees containing po tential roosting

features, and to provide additional enhancement of the site for roosting bats, a series of bat

roosting boxes will be installed on buildings, poles and retained trees on and adjacent to the

Site (see Chapter 6 Ecology & Nature Conservation for further information).

5.40 All boxes will be installed on land within the Applicant’s control. Exact locations for the

installation of boxes will be determined on site by a suitably qualified ecologist.

Site Offices & Welfare Accommodation

5.41 Specific temporary offices, welfare facilities and accommodation for construction staff will be

required and located on-site.

Hours of Work

5.42 Working hours on the Site will be agreed with SCC and ESBC through the CEMP. However, it

is likely that the standard hours of work will be adhered to. These are:


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Monday to Friday, 8am to 8pm;

Saturday, 8am to 1pm; and

Sunday and Bank Holidays, no noisy activities on-site.

5.43 All work outside these hours will be subject to prior agreement of, and/or reasonable notice as

appropriate.

5.44 Night-time working will be restricted to exceptional circumstances, and work internally with in

buildings. By arrangement with SCC and ESBC, there may be some out of hours construction

deliveries made to the Site.

Training and Management of Construction Works

5.45 All contractors will be required to complete a method statement and risk assessment and obtain

a works permit from the Applicant prior to commencement on Site. Contractors will be given a

site induction including details on relevant environmental issues, roles and responsibilities, and

toolbox talks including managing waste, controlling noise, odour and other nuisances and

instruction on incident responses procedures.

Response to Complaints

5.46 Any complaints will be logged on-site and, where necessary, reported to the relevant individual

within ESBC, as appropriate, (and vice versa) as soon as practicable.

Notification Procedure

5.47 Procedures for reporting any spillages or pollution incidents are to be set out in the CEMP. The

procedure will include recording all incidents in the project progress report and providing

details to the Client Project Manager. Contact details for key site and emergency response

personnel with responsibilities relating to the protection of the environment will be kept and

publicised in key locations on site.

Prior Notice

5.48 In the event of unusual activities or events, these will be notified to ESBC, as appropriate, and

relevant property owners or occupiers in advance. The relevant activities will be agreed with

ESBC, as appropriate, once the detailed programme of construction is defined. This will include:


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Necessary night-time, weekend or evening working (outside core areas) of a type which

may affect properties; and

Road or footpath closures/diversions and movements of wide loads (unlikely to be required).

Construction and the Community

5.49 The community will be kept informed about the project and any specific issues which may

affect them directly (e.g. periods of more noisy works in the immediate vicinity of the

neighbouring residential properties). Progress newsletters will be displayed on the community

notice board and sent to local residents, and provision will be made for visitor site access. An

out of hours number of emergencies will be displayed at the Site and the community will be

made aware that there is an open door policy for locals and residents, to discuss the

Development and raise any concerns.


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References

i Environment Agency (April 2014) Working at construction and demolition sites: PPG6 ii Environment Agency (July 2013) Understanding Your Environmental Responsibilities: PPG1 iii Environment Agency (April 2014) Above Ground Oil Storage Tanks: PPG2 iv Environment Agency (April 2006) Use and Design of Oil Separators in Surface Water Drainage Systems: PPG3 v The Control of Pollution (Oil Storage) (England) Regulations 2001, Statutory Instrument 2001 No. 2954 vi British Standards Institution (December 2009) BS6031:2009 Code of Practice for Earthworks vii British Standards Institution (December 2004) BS EN 1997-1:2004 Eurocode 7. Geotechnical Design. General Rules. viii British Standards Institution (2002) BS EN 1990: 2002 Basis of Structural Design ix Building Research Establishment Online Resource, available via http://www.bre.co.uk/greenguide

5.0 CONSTRUCTION METHODOLOGY & PHASING

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