19-27 Young Street Development Kensington

Transcription

1 19-27 Young Street Development Kensington Construction Management Plan Resident Update Draft 2nd October 2013 υ

2 Introduction An initial construction management meeting took place on Tuesday 10 th September between Grainger, Grainger s consultants and 4 local residents. At the beginning of the meeting Grainger outlined its intended process of consultation with residents and achieving a satisfactory construction management plan for the delivery of the Young Street development proposals, which is summarised as follows; Grainger is committed to working with residents to minimise where possible the adverse impact of the construction process. As part of the current planning application package a construction management plan was submitted Whilst typically a developer would not consider the construction management process until after planning is achieved, Grainger is keen to agree the principles of the construction management process as soon as possible with local residents As part of this process Grainger proposes a Construction Management Panel (CMP) is established, consisting of the developer and a number (circa 6) of local residents, who are selected and chosen by local residents. Once a contractor is selected, the contractor would also join the CMP. It is proposed that the CMP meet on a monthly, bi-weekly or weekly basis as Pre Construction Management Meetings to take place between planning and construction start (anticipated autumn 2014). The purpose of the Pre Construction Management Meetings (PCMM) will be to agree the final detailed construction management plan to be incorporated in the contract tender documentation. It is proposed that the CMP meet on a monthly or bi-weekly basis as Construction Management Meetings to take place during construction The purpose of Construction Management Meetings (CMM) will be to update the panel on construction progress, identify any issues and ensure resolutions are being implemented. Outline Timetable Planning Detailed Design Construction Completion 2013 Jan 14 Autumn 14 Autumn 14 to Autumn 16 Summer 2016 CMP Pre-Construction Management Construction Management As required Established Meetings (CMMP s) Meetings (CMM s) Over the course of the meeting on 10 th September a number of areas were discussed and detail provided. The residents agreed to consider who would wish to sit on the Construction Management Panel. Grainger agreed to provide a separate note to cover specific queries raised at the meeting regarding; Community Engagement Process, Traffic Management, Noise, Dust and Vibration.

3 Construction Management Plan Update After the initial residents meeting, the following has been produced as a draft addendum/appendix to the current construction management plan submitted to the Royal Borough of Kensington and Chelsea; 1) Community Engagement Grainger will ensure that liaison and consultation with residents continues through-out the project. This will be achieved by the Construction Management Panel (CMP), Pre-construction Management Meetings (PCMM) and Construction Management Meetings (PCM). Representatives from Grainger, the professional team and the main contractor will be introduced and will attend all such meetings, as appropriate. Grainger will ensure a clear point of contact is made available throughout the project and establish a clear escalation process should issues not be addressed. The contractor will develop a site logistic and traffic management plan that will be shared and agreed with local residents prior to commencing on site. 2) Traffic Control No construction traffic will enter Kensington square. All major vehicle movements will take place outside peak times i.e. after 10am and before 16.30pm Monday to Friday. The main contractor will be obliged to coordinate deliveries with Barkers department store, including Whole Foods and PC World. Full time project gateman and banksman will be employed to manage construction traffic on Young Street. These people are key as they will be the first point of contact and can deal with issues before they become problems. They will be selected for their experience and ability to liaise with local residents and the general public. During substructure operations vehicles will load and unload within the confines of the site. We will endeavour to do the same during superstructure operations, but this may not be practical. During periods of more intense vehicular activity, eg concrete pours, a vehicle holding area will be established outside the local vicinity. 3) Control of Potential Impacts on the Local Community (Noise, Dust and Vibration) No works will be permitted on Saturdays, Sundays or Bank holidays unless there are unavoidable and specific reasons and local residents have been advised in advanced. A managed approach will be adopted for the deconstruction of the Car Park structure using hydraulic crushing techniques whenever possible to "nibble" away the structure and work top

4 down, maintaining the existing structure to maximise the shielding effects for as long as possible. Limits for noise, dust and vibration together with monitoring regime will be established. The contractor will be contractually obliged to select methods of working and plant to minimise emission of noise, dust and vibration. With respect to noise a pre-construction background noise assessment will be completed in order to set a maximum noise level. An action level of 70 dba will be targeted with compulsory quiet periods at sensitive times, for example over lunchtime 12noon to 1.30pm. There would be occasions when the limit would inevitably be exceeded. Windows of operation for these noisy operations would be considered and mitigation measures fully explored before the works proceed. Trigger points will also be pre-determined for dust and vibration. The action level for vibration will be 5mm per sec, where it is recognised that a vibration level of 10mm/sec could risk the start of structural implications. With respect to dust an action level of 250 mirco-grams per cubic meter over a 15 minute period is proposed. In addition daily and weekly aggregate levels will also be recorded to monitor the overall performance of the contractor. The contractor will be obliged to deploy "real-time" monitoring equipment for: noise; vibration and dust at the perimeter of the site and other strategic points in the local vicinity and on sensitive buildings. Should a trigger point be reached then the contractor's resident site manager (or he deputy) and the client s representative will be notified instantaneously by so the problem can be address and any corrective action can be instigated. The Client s structural engineer will advise the scope and range for condition surveys of adjoining properties based on the geotechnical information obtained during the recent site investigations and the anticipated risks to neighbouring property. A fully height (2.4m) hoarding will be erected incorporating acoustic deadening material and, together with a "cocoon" of scaffold with monoflex sheeting to the height of the existing structure, will maximise noise screening during the noisiest operations. The Contractor will be obliged to keep the site well ordered, tidy and satisfactorily maintained at all times. Construction welfare facilities and smoking area will be located on site. Operatives will be encouraged to stay on site at break times. Safe pedestrian access will be maintained along Young Street at all times with clear segregation from construction traffic.

5 Please feel free to contact a member of the Grainger team; David Walters MRICS Development Director dwalters@graingerplc.co.uk Nick Kybert Project Manager nkybert@graingerplc.co.uk Richard Luffingham MRICS Development Manager rluffingham@graingerplc.co.uk Grainger plc 161 Brompton Road Knightsbridge London SW3 1QP United Kingdom