Construction Methodology 2q704g

APPENDIX I – CONSTRUCTION METHODOLOGY 1. On-site works required include: ƒ

Earthworks, earth bunding, and site levelling, and profiling as appropriate.

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New access road and footpath

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New foul and surface water drainage and surface water attenuation ponds.

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New building and external parking area

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Digester tanks and associated infrastructure

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Biofertiliser Storage Tanks

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Bunding, landscaping, including tree planting

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New utility service mains water, electricity and telecommunications and connections to existing mains running near site boundary.

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Underground grid connection and heat main

2. Off-Site works required include:-

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No off site works are proposed with the exception of service and infrastructure connections

Below Ground Construction Issues

1.

The design and construction of foundations, footings and related structures will be affected by ground conditions on site. The ground conditions in turn will vary depending on the nature of the ground itself. An assessment of the ground conditions has been undertaken by ST Consult and is favourable to the construction of the proposed development.

Assessment of Impacts 2.

Construction activities liable to cause impacts on and in the vicinity of the application site include:

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Earthworks and excavation

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Construction of structures and landform profiling

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Hydrological engineering

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Temporary structures

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Hours of working

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Site boundary fencing for security

3.

Service installation, routing and management, waste management and disposal Underground grid connection and heat main Generation and movements of construction traffic and personnel. Mitigation Proposals

4.

A Code of Construction (The Code) will be issued by the main contractor to sub-contractors within their of appointment. The contractors appointed by the Developer will be required to ensure that the works are carried out in accordance with the Code. Similarly, the developer will have to ensure that all appointed contractors adhere to the Code within their of appointment.

5.

The purpose of this Code is to ensure all construction work is carried out in such a manner as required by the Local Authority and developer, and to maintain a suitable environment during the construction phase.

6.

Where the contractors do not adhere to the Code and the developer (or his management company) has to carry out works to ensure compliance with the Code, the costs incurred will be charged to the contractor, plus a 20% management charge. This will act as a deterrent and provides a contractual remedy in the event of a breach of the Code of Conduct. Hours of Working

7.

The core working hours will be from 7.00 a.m. to 7.00 p.m. (Mondays to Saturdays). Some working outside the core hours may be necessary for strategic construction operations relating principally to infrastructure provision or in event of emergencies.

8.

These strategic operations may require works to be carried out over weekends and through night-time periods. The works will have to be agreed by the contractor with all relevant authorities, including the police and emergency services. Construction Site Boundary Fencing

9.

Construction site boundaries are to be agreed by the Local Authority and the developer. The contractor will be required to fence the site in accordance with the relevant regulation prior to any construction work commencing.

10.

The position of the temporary site entrances is proposed to be on the line of the new access road. Lockable gates and barriers are to be provided at the

site entrance. These are to be manned during the working hours of construction works on site. 11.

Any trees, plants or areas of retained habitat within the working site are to be protected before any construction works commence. Accommodation and Appearance of the Site

12.

All the site accommodation, materials and the works are to be within the agreed construction boundaries. The parking of any vehicles by contractors or deliveries will be contained within the site working area.

13.

Where service connections or cross-overs come outside the construction boundary, these are to be advised in advance to the Local Authority together with a detailed method statement and programme of works, which must be agreed prior to commencement of such works.

14.

Contractors site boards, flags, development advertising boards or any temporary signage are to be agreed with the Local Authority subject to any necessary planning requirements prior to erection. Site offices and stores are to be of uniform colour and no double storey office shall be allowed without the prior agreement of the Local Authority. Waste Disposal

15.

Chapter 6 describes the nature of the soil contamination identified on the site. The development is to be designed using sustainable development principles, and it is not intended that significant volumes of soil material will be exported from the site, however, the following procedure will be adopted for removal of contaminated material and waste from the site; •

If necessary, contaminated material shall be stockpiled on site in a secure place prior to removal, although double-handling will be avoided wherever possible.

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The contracted haulier and disposal site for waste materials shall be licensed for the type of contaminated material or waste.

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On leaving the site, the wheels of all vehicles shall be jet washed in a suitable wheel wash facility as required by site conditions.

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All wagons shall be sheeted when loaded.

16.

During the construction operation on-site, a road sweeper shall be available to clean the roads on site and at entrances to the pubic highway. Fly tipping shall not be permitted on the site. Loads must only be disposed of at authorised tips in accordance with the requirements of the Waste Regulation Authority, CoSHH Regulations, and the Environmental Protection Act. The recording of all waste movements from the site will be in strict accordance with current waste management legislation. The main contractor will operate a documentation system to confirm each load is received at the designated tipping site. Copies are to be provided to the employer and regulatory authority upon request. The site main contractor is to operate a waste collection regime at all times during construction. Roads

17.

All contractors and visitors are required to use agreed construction traffic routes. These routes shall be pre-agreed with the developer/contractors and the Local Authority. These routes shall be clearly signposted by the main contractor. No out of hours parking for loads on public highways shall be permitted. Provision will be made on site for such requirements. No out of hours deliveries shall be allowed without prior agreements with the Local Authority.

18.

All contractors and visitors are required to use agreed construction traffic routes. These routes shall be pre-agreed with the developer/contractors and the Local Authority. These routes shall be clearly signposted by the main contractor.

19.

No out of hours parking for loads on public highways shall be permitted. Provision will be made on site for such requirements. No out of hours deliveries shall be allowed without prior agreements with the Local Authority.

20.

No vehicles, materials, accommodation, access or works will be allowed on any unused land outside plot or construction boundaries.

21.

Only tyred vehicles shall be allowed onto the site infrastructure roads or public highways. Mud on Roads

22.

The main infrastructure contractor shall take stringent measures to prevent mud, dirt, debris, rubbish or waste arising on Public Highways. Such measures shall include:

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The provision of easily cleaned hard standings for vehicles entering/leaving the park and for parking.

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The provision of wheel washing equipment at the site exit.

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The provision of a road sweeper during the construction works for use on site and public highways.

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All drains shall be jetted and cleaned on a periodic basis.

Control of site drainage 23.

Construction site sewage shall either be tankered to treatment facilities off site or disposed via the site foul drainage system where available.

24.

Potential environmental pollutants (both liquids & solids), such as diesel, oils and solvents, shall be stored in a secure bunded area, in accordance with Environment Agency recommendations.

25.

It is anticipated that the proposed sustainable drainage system may be installed and employed at an early stage in the development. Any specific discharges of water to the ground will be subject to discharge consents from the Environmental Agency. Discharges will via settlement and oil interceptor facilities, and shall be monitored to a programme agreed with the Environment Agency. Effluent exceeding the Environment Agency conditions shall be held for further on-site treatment or tankered away to a licensed treatment plant.

26.

Earthworks and construction operations have the potential to result in surface water run-off and ground contamination. Surface water run-off will be strictly controlled using measures such as cut-off ditches and soakaways. Noise

27.

The Construction Code of Practice will include provision for the management of noise from the construction phase of the project, which will be issued to tenders for works. Management will include hours of working and method

statements for key noise generating activities such as earth works and piling. The guidance offered by BS5228 will be used in developing such methods. Control of Dust 28.

All contractors shall ensure adequate dust control measures are employed on site in respect of earthwork operations. To avoid wind erosion and dusting of the excavated materials the following methods shall be utilised to control dust;

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Delineation of the areas of working on a regular basis, so that vehicles are confined to an area that can be subjected to appropriate dust control measures.

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Spraying of delineated areas with water as and when conditions require.

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Delineation of dedicated unpaved haul routes, particularly for long on site haul operations. Where possible, existing paved routes are to be used.

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Wheel/body washing facilities to be utilised at the site exit and in earthworks operations areas if required.

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Vehicles to be sheeted when loaded. Services

29.

Any cables, pipes or ducts uncovered during the course of construction are to be notified to the appropriate Utility Authority prior to any further work on the service.

30.

The information on the known services is to be made available to all contractors by the employer. The contractor is not relieved of his obligation to the known service information by undertaking necessary surveys of the ground