6.0 construction programme - scambs.gov.uk 6... · 6.1 this chapter of the es describes the...

Cambourne West Construction Programme

19102/A5/ES2014 Chapter 6 – December 2014

6.0 CONSTRUCTION PROGRAMME

Introduction

6.1 This chapter of the ES describes the anticipated construction works programme and the

key activities that will be undertaken. Consideration of potential effects during the

construction process and any necessary mitigation measures are provided in each

relevant chapter of the ES.

Anticipated Programme

6.2 Construction of the Proposed Development will commence in 2016, subject to gaining

planning permission, and is expected to be completed within 12 years in 2028.

6.3 The housing trajectory for Cambourne West, upon which the ES has been based is

summarised in Table 6.1 below.

Table 6.1: Housing Trajectory

Year (Start - Finish)

Quantum of Housing delivered

2016-17 70 residential units












Phasing

6.4 The phasing for the construction of the Proposed Development is illustrated on

Figure 6.1 and summarised in Table 6.2 below:



Table 6.2: Summary of Phasing

Phase Quantum of Development delivered

Infrastructure Delivered

Enabling works

Existing access route via Sheepfold Lane upgraded and remodelled. Construction of a new permanent access incorporating a roundabout at the junction of the A1198/Caxton Bypass and construction of internal haul roads. Installation of a proportion of the SUDs drainage system to facilitate the drainage of the impermeable road surfaces in this phase. Realignment of the watercourses as appropriate to install the permanent road.

1

Approximately 385 dwellings

completed in Phase 1 on 15.97ha of land (development parcels A2 and C). The employment area (1.18ha) immediately to the north and south of Sheepfold Lane will also be established in this phase.

Approximately 18.8ha of green

infrastructure provided, including woodland planting along the northern, western and southern boundaries. In addition new planting established at the main entrances to the Site; the A1198/Caxton Bypass and Sheepfold Lane. Secondary School complete to shell and core (EIA assumption that this would be completed for occupancy by the appropriate body during this period). Ongoing construction in part of the internal access roads and SUDs drainage system, including installation of the attenuation ponds and associated discharge channels to facilitate the drainage of the roads and development surfaces in this phase. Finally, installation and connection of the development to the utilities network, these works to include any off-site reinforcement works.

2

Approximately 480 dwellings completed in Phase 2 on 12.75ha of land (development parcels A1, A2 & C).

Approximately 11.7ha of proposed green infrastructure located within the central part of the Site including playing fields either side of the main spine road. Construction of the local centre, in part, to include retail and community buildings. Close to this main community hub, construction of the first primary school to shell and core.

Ongoing construction of internal access roads and installation of SUDs drainage system.

3

Approximately 385 dwellings completed in Phase 3 on 11.2ha of land (development parcels A2, B & D).

Approximately 11.2ha of proposed green infrastructure including woodland planting along the western and northern boundaries and the main playing fields adjacent to the northern boundary. Construction of the second primary



Phase Quantum of Development delivered

Infrastructure Delivered

school and sports pavilion in the south western part of Site, between developments cells D & E. Completion of the local centre, including construction of additional units for a range of A1-A5 uses, including shops, restaurants and cafes. A smaller retail component will also be established in the southern part of the site, close to the second primary school and children’s play area. Ongoing construction of internal access roads, including completion of the main spine road and installation of SUDs drainage system.

4

Approximately 240 dwellings completed in Phase 4 on 7.86ha of land (development parcels B & G).

Approximately 6ha of green infrastructure to be provided including woodland planting and allotments to the south of the secondary school. Ongoing construction of internal access roads, installation of SUDs drainage system and connection to the utilities network.

5

Approximately 365 dwellings completed in Phase 5 on 9.8ha of land (development parcels B & E).

Completion in part of internal access roads and areas of open space (3.4ha in total). Ongoing construction of internal access roads and installation of source control methods to serve the development to the SUDs system.

6

Approximately 270 dwellings completed in Phase 6 on 7.3ha of land (development parcel F & H). Designated Employment Area established in the north western corner of the site including the construction of the associated access off the A1198.

Woodland planting to be provided in the north west area of the Site and to the north of Swansley Wood Farm. Ongoing construction of internal access roads and installation in part of SUDs drainage system associated with the relevant attenuation pond for the proposed employment area.

7

Approximately 225 dwellings completed in Phase 7 on 7.4ha of land (development parcels F & G).

Installation of source control methods to serve the development to the SUDs system.

Description of Works

6.5 Construction will include the following activities:

Enabling works;

Site Preparation (including excavation and grading);

Provision of infrastructure;

Construction of substructure;



Construction of superstructure;

Fit out of buildings; and

Structural Landscaping.

Enabling Works

6.6 Enabling works will involve the creation of routes into the Site along with:

Arboricultural works – including the protection of trees/vegetation to be retained

and removal of trees/vegetation to be lost;

Any required archaeological investigations;

Diversion of public rights of way as required; and

Ecological works – including the application for protected spec ies licences from

Natural England.

Site Preparation

6.7 Site preparation will involve the establishment of the construction and haul routes, on -

site parking provision and any construction worker facilities (including site compound

area with offices and welfare facilities for management and construction workers) in

addition to:

Installation of site hoarding, which will be provided to separate construction

areas from off-site publicly accessible areas;

Ground modelling works will be carried out, including topsoil stripping and

stockpiling for later use;

General vegetation clearance; and

Installation of temporary surface water management measures .

Infrastructure

6.8 Appropriate infrastructure to serve the Proposed Development will be installed:

The existing access route into the Proposed Development via Sheepfold Lane will

be upgraded and remodelled;

Construction of a new permanent access incorporating a roundabout at the

junction of the A1198/Caxton Bypass and construction of secondary internal

roads;



Construction of a third vehicular access point off the A1198, south of the Caxton

Gibbet roundabout, to serve the commercial elements of the Proposed

Development; and

Installation and connection of the Proposed Development to the utilities network ,

including any off-site reinforcement works.

6.9 It is anticipated that the base of internal roads will be constructed and used for

construction traffic routes as the Proposed Development is built.

Construction of Substructure

6.10 This will involve foundation excavation, the installation of below ground services and

construction of new foundations. Substructure works may involve:

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

structures;

Excavation for foundations and to allow installation of any below ground

services; and

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

beams.

Construction of Superstructure

6.11 This stage will involve the construction of the main building envelope of buildings and

will include the installation of timber frames, load bearing brick walls, planks, reinforced

masonry and masonry and tiling.

Fit Out

6.12 Fit out of the Proposed Development will involve the installation of block work party

walls, dry lining to internal walls, internal walls, domestic , mechanical and electrical

installations with fitted kitchens and bathrooms.

Landscaping

6.13 Landscaping works will involve some ground modelling works and the establishment of

green spaces within the Site including soil preparation, creation of waterbodies, tree

and vegetation planting, seeding, construction of footpaths/cycle routes, sports pitches



and play areas. The ground modelling works will be undertaken concurrently with the

site preparation and substructure works outlined above. The creation of green spaces

will be undertaken simultaneously with adjacent development areas, with the majority

of the woodland planting along the northern, western and southern boundaries being

included within the first phase, so that it would have time to mature during the twelve

year construction period and provide more effective visual screening.

Material and Resource Use

6.14 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 Proposed Development will be sourced from the local area.

Furthermore 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 will be preferred.

Plant and Equipment

6.15 Consideration has been given to the types of plant likely to be used during the

construction works. The plant and equipment associated with each key element of the

construction process is set out below in Table 6.3.

Table 6.3: Construction Plant

Plant

Stage

Enabling Works Infrastructure and

substructures Construction &

landscaping

Tracked/wheeled 360 degree Excavators

Excavator mounted hydraulic breakers

X X

Excavator mounted hydraulic crushers

X X

Dumpers

Concrete Crushing Plant X X X

Mobile Craneage/Tower Cranes

X

Eight-wheeler trucks

Air Compressors

Diamond cutting tools / saws

Hand Held Tools including breakers (pneumatic and hydraulic)

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

Hand /power tools

Wheel Washing Plant



Plant

Stage

Enabling Works Infrastructure and

substructures Construction &

landscaping

Piling Rigs X X X

Scaffold X X

Mobile access platforms X X

Delivery trucks

Skips & Skip trucks

Forklift trucks

Hours of Work

6.16 SCDC will want to regulate the hours of work by imposition of an appropriate condition

prior to the commencement of the works. It is anticipated that these will be 08:00 to

18:00 Monday to Friday and 08:00 to 13:00 on Saturdays. All work outside these hours

will be subject to prior agreement, and/or reasonable notice, by SCDC, who may impose

certain restrictions. Night time working will be with the agreement of SCDC and

restricted to exceptional circumstances.

Environmental Management

6.17 It is expected that the developer will operate an Environmental Policy which will cover a

number of key areas during the construction process. The policy, which is likely to be

required by an appropriate condition attached to the grant of planning permission, will

ensure that the developer and its contractors operate in a responsible manner during

the construction of the Proposed Development.

6.18 A Construction Environmental Management Plan (CEMP) will be provided to SCDC prior

to commencement of the works. It will include the following:

The broad plan of the phasing of the works and its context within the whole

project;

Baseline levels for noise, vibration and dust and details of any monitoring

protocols that may be necessary during the works;

Housekeeping procedures and environmental control measures;

Any requirement for monitoring and record keeping;

Contact details during normal working hours and emergency details outside

working hours;

Provision for reporting, public liaison, prior notification etc.;

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

responding to complaints;



Prohibited or restricted operations (location, hours etc.);

Details of construction operations highlighting any operations likely to result in

disturbance and/or working hours outside the core working period, with an

indication of the expected duration of key phases and dates;

The details of proposed routes for heavy goods vehicles travel ling to and from

the Site;

Details of all works involving interference with a public highway, including

temporary carriageway/footpath closures, realignment and diversions where

applicable;

Construction waste (as set out at paragraph 6.25);

Construction Traffic Management (as set out at paragraph 6.21); and

Construction Impacts on Ecology (as set out at paragraph 6.32).

Construction Traffic

Construction Traffic Movements

6.19 As discussed in Chapter 9 ‘Transport and Access’, the construction of the Proposed

Development would generate approximately 675 one-way construction vehicle

movements per week, or on average 135 one-way trips per day (i.e. 270 two-way trips

per day). Approximately 63 percent of trips are made by cars or light goods vehicles,

with 37 percent HGV traffic. This equates to approximately 170 two-way car or light

goods vehicle trips and 100 two-way HGV trips per day.

Construction Traffic Routing

6.20 The construction vehicular access route to the Proposed Development is anticipated t o

be via the private road leading to Swansely Farm, off the A1198. HGVs would be

required to avoid inappropriate routes through residential streets and villages. Precise

construction routing arrangements will be contained within a CEMP which will be

approved in liaison with SCDC and other relevant statutory organisations prior to the

start of construction.

Construction Traffic Management

6.21 Whilst no long-term road closures are envisaged, short term closures may be required in

order to establish and remove large items of building plant. If this is to be required then

consent will be obtained from SCDC, the Highways Agency and the Highways Authority.



6.22 It will be the responsibility of the developer and Contractor or Construction Liaison

Officer to finalise consultations with SCDC. Notice regarding planned closures and

diversions of roads and footpaths forming part of the Site will be given by the

Contractor/Construction Liaison Officer to SCDC, the Police, the Fire Brigade and other

emergency services sufficiently in advance of the required closure or diversion dates.

6.23 In order to minimise the amount of construction vehicles using the public highway, the

following factors will be considered:

Re-use and recycling of construction materials;

Control of wastage;

Description of permitted routes for transit of materials, avoiding sensitive areas;

Shared materials delivery opportunities;

On demand ordering;

Phased delivery times throughout the working day; and

Car sharing for operatives.

6.24 All construction traffic entering and leaving the Site will be closely controlled. Site

operatives will be encouraged to car share, if transport is not provided by the employer.

It is also envisaged that car parking arrangements for site operatives within or adjacent

to work compound areas will be enforced in order to avoid uncontrolled parking on

public highways.

Waste Management, Recycling and Disposal

6.25 Waste will be generated as a consequence of the proposed excavation and construction

works. No demolition works are proposed. All relevant contractors will be required to

investigate opportunities to minimise waste arisings at source and, where such waste

generation is unavoidable, to maximise the recycling and re -use potential of

construction materials. Excavated topsoil will be reinstated as part of the site

landscaping arrangements and will be re-used wherever possible in site re-grading and

as backfill as part of the site cut and fill balance to reduce the amount of material that

is requires to be sent off-site for recycling or disposal. Wherever feasible, such arisings

will be dealt with in a manner that reduces environmental impact and maximises

potential re-use of materials. Recycling of other materials (for example metals and

wood) will largely take place off-site where noise and dust are less likely to result in

effects to the occupants of surrounding properties.



Drainage

6.26 Surface water drainage will be controlled by appropriate Sustainable Drainage Systems

(SUDS) and discharge arrangements will be agreed with the Environment Agency or, in

the case of discharges to sewer, Anglian Water. Construction vehicle parking areas may

need to be paved.

6.27 The Construction Liaison Officer will ensure that any water which may have come into

contact with any contaminated materials during construction will be disposed of in

accordance with the Water Resources Act (1991) and other legislation, and to the

satisfaction of the Environment Agency or Southern Water. In addition, any risk will be

reduced by adopting good management practices and relevant measures described in

the Environment Agency’s Pollution Prevention Guidelines, including: PPG01 – General

guide to the prevention of water pollution; and PPG06 – Working at construction and

demolition sites.

6.28 All liquids and solids of a potentially hazardous nature (for example diesel fuel, oils,

solvents) will be stored on surfaced areas, within secure compounds with bunding, to

the satisfaction of the Environment Agency.

Protection of Trees and Vegetation

6.29 All trees to be retained (and new trees planted in the early stages of construction) will

be protected from any unnecessary damage. Tree protections are likely to be secured by

a condition and referenced to a plan. Existing trees have been assessed according to

the guidance set out in BS5837: 2012 (Trees in Relation to Design, Demolition and

Construction - Recommendations). This assessment involved qualitative differentiations

of the existing tree stock which was used to inform the Parameter Plans. The majority

of the trees on the Assessment Site will be retained including the woodland with the

exception of some tree removal to allow for highway visibility and the ground modeling

works. The trees will be managed and protected in accordance with relevant British

Standards (BS3998:2010 ‘Recommendations for tree work’; and BS5837: 2012).

6.30 All temporary material storage will be located wherever practical at adequate distances

from vegetation and tree cover to avoid any physical damage. Where tree roots may be

subject to potential vehicle compaction, additional temporary protection of the ground

surface will be introduced in accordance with any relevant planning condition.

6.31 Similarly, other areas of vegetation to be retained as part of the Proposed Development



will be protected from adverse effects during construction through the installation of

temporary fencing as appropriate. Construction traffic and storage of materials will not

be permitted in these areas, ensuring that they are safeguarded throughout

construction.

Protection of Ecological Habitats and Species

6.32 Construction effects on ecology within and around the Assessment Site will be

controlled by the CEMP. Key ecological features to be retained will be buffered from

construction effects from the Proposed Development.

6.33 Habitats to be retained will be fenced off to reduce disturbance effects, for example

from increased noise and lighting. All temporary lighting will, wherever possible, be

located away from these areas and positioned as close to the ground as possible.

6.34 To limit the potential for interference with any wild bird or damaging or destroying its

nest, all vegetation removal will be timed to avoid the bird-breeding season (March to

July inclusive).

Drawn by: MW

Date: 21.08.14

Checked by: JF

Canada House3 Chepstow StreetManchester M1 5FWTel: 0161 228 7721

Phasing Plans

Scale: NTS @ A3

Residential Development

Development Land

Educational Land

Haul Roads

Constructed Roads

Application boundary

Key North

CAMBOURNE WEST

Commercial Land

Sports Buildings

Non-Development Land

Non Development Area

Drwg No: 85S - 71j

OS reference: © Crown copyright, All rights reserved. 2014 Licence number 100018033

Enabling Works

Phase 2

Phase 1

Figure 6.1

Phase 3

Drawn by: MW

Date: 21.08.14

Checked by: JF

Canada House3 Chepstow StreetManchester M1 5FWTel: 0161 228 7721

Phasing Plans

Scale: NTS @ A3

Residential Development

Development Land

Educational Land

Commercial Land

Haul Roads

Constructed Roads

Application boundary

Key North

CAMBOURNE WEST

Non Development Area

Non-Development Land

Drwg No: 85S - 72j

OS reference: © Crown copyright, All rights reserved. 2014 Licence number 100018033

Phase 4

Phase 6 Phase 7

Phase 5

Figure 6.1

Sports Buildings

6.0 construction programme - scambs.gov.uk 6... · 6.1 this chapter of the es describes the...

Documents