CONSTRUCTION METHOD
STATEMENT
FOR
Ouseburn Quays
Version: 1.0
Date: 1st September
2020
Doc No: 00369
Name
Company
Position
Compiled By:
David Charville
A&J Keith Ltd
HSEQ Manager
Checked By:
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Construction Method Statement for Ouseburn Quays: Health, Safety, and Site Management, Study notes of Construction
The construction method statement for the Ouseburn Quays project, which includes site establishment, delivery and traffic management, unloading/distribution, storage and cranage, waste management, site security, noise and dust prevention, excavations/earthworks, parking of vehicles, wheel washing facilities, and superstructures. The statement covers measures to ensure a safe and efficient construction process, such as secure perimeters, traffic management plans, designated loading zones, waste management procedures, and site security.
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CONSTRUCTION METHOD
STATEMENT
FOR
Ouseburn Quays
Version: 1.
Date: 1st September
Doc No: 0 0 3 6 9
Name Company Position
Compiled By: David Charville A&J Keith Ltd HSEQ Manager
Checked By:
AMENDMENT
(Section No.)
DESCRIPTION OF CHANGE CHANGED BY DATE
1.0 (^) Initial writing David Charville 01 / 09 /20 20 1.1 (^) Re-write of section 2.11 David Charville 07/09/
1.0 PROJECT PARTICULARS
1.1 PROJECT LOCATION
The proposed site is located by the Ouseburn River in the Ouseburn estate within Newcastle upon Tyne. The property is situated on the junction Cut Bank and Ford Street. The site is currently utilised as a timber yard by Quay Timbers. 1.2 PROJECT DESCRIPTION Demolition of existing timber yard, erection of mixed use development up to 7 storey's comprising of 51 no dwellings (15% affordable) (Class C3), 2 no offices (Classes B1 and A2) with associated car parking, cycle, refuse storage and highway works. Works include the erection of a residential development consisting of 51 units (for rent) on the Quay Timber site on Hume Street. The development will consist of 11 x 1 bed units, 36 x 2 bed units and 4 x 3 bed units. 31 parking spaces will be provided within the basement car park including 6 for electric vehicles and 2 disabled spaces. A basement car park is proposed at the existing lower level of the timber yard with a landscaped podium courtyard above providing an entrance to the accommodation above.
1.3 PROJECT
TIMESCALE
Commencement: November 2020 Completion: May 2022 Duration: Operating hours: 18 Months 0800 – 1800 Monday to Friday 0800 – 1300 Saturdays No works on Sundays or bank holidays unless otherwise agreed with the local authority
2.0 SITE ESTABLISHMENT
2.1 SITE BOUNDARIES
On possession of site, a secure, solid perimeter hoarding will be erected around the complete perimeter of the site prior to actual site works commencing. The secure perimeter hoarding will ensure that the site is kept totally separate from all other properties and public thoroughfares. The hoarding along Cut Bank will also be erected on the public footpath however, there is not sufficient space between the proposed hoarding line and new build so a pedestrian tunnel will be utilised along this elevation. License applications will be made to Newcastle Highways well in advance of any hoardings erected on the public footpath.
Shown above are the accepted routes to access Ouseburn Quays. Access from City road turning left/right at the ford Street junction. Spaces are available to stop on ford street to inform of arrival. No access to site is possible without a banksman. To leave site stop at traffic lights on Ford Street and turn each left or right onto cut bank. We will actively encourage shared travel arrangements/use of public transport to minimise the number of vehicles travelling to site by introducing constraints in package tender documents and reinforcing at Supply Chain pre-start meetings and H&S inductions. Parking spaces are to be provided on Lime Street of site operatives with a designated pedestrian route to access the site 2.4 UNLOADING/DISTRIBUTION, STORAGE & CRANAGE Designated loading zones will be established within the site area for dealing with deliveries. These zones will include a holding area for short term containment of goods to facilitate effective offloading and movement of delivery vehicles on / off the site. Following acceptance of a delivery and as required by programme and site progress, materials will be distributed from the holding area to the site storage area or relevant location on site. Materials handling and hoisting on site will be carried out by the on-site cranes. Concrete pumps will be employed to place concrete for foundations and floor slabs. It is our intention to adopt a ‘just in time’ approach for materials through effective planning, thus minimising storage space required. A designated storage area will be established for a limited amount of materials. This will be strictly managed to control content. A member of the site team will be designated as an appointed person responsible for the management and co-ordination of key vehicle movements and lift operations. They will also be responsible for ensuring that all plant and equipment is operated within current health and safety guidelines.
2.5 WASTE MANAGEMENT
Maintaining a high standard of site cleanliness is essential to allow works to progress on site in an effective and a safe manner. Our approach to site cleanliness will be to make supply chain responsible, through site constraints issued as part of enquiries and orders. In addition to this we will have a multi task labor force directly employed whose core activity will be to police site cleanliness and to coordinate the removal of waste containers filled by the supply chain contractors. A designated Waste Management Compound will be set up within the site. This will allow for the segregation of waste in separate skips including:
- Specialist Waste (e.g. oil drums, paint tins, spray cans etc)
- Waste timber for recycling
- Waste metal for recycling
- Gypsum based products (e.g. Plasterboard)
- General waste (covered with waste transfer notes) 2.6 TEMPORARY SERVICES A&J Keith Ltd will be responsible for the design, installation and periodical testing of temporary services and electrical equipment. General power on site will be 110v and will be distributed via transformers located at central locations around the site. We will install temporary supplies and lighting ensuring they are available on site to carry out maintenance and planned changes to the layout. General safety lighting will be provided through all circulation areas reinforced with specific mobile task lighting being employed taking account of specific operations as the building close in. The site will generally be covered with security lighting that will be of a low energy nature and be controlled via photo cells to ensure that it is only lit during hours of darkness. Lighting will be sited such that it does not increase light pollution to the neighboring areas. All temporary services will have identified isolation points to enable (1) quick and effective isolation in case of an emergency and (2) efficient management of energy usage. Meters will be installed as applicable to facilitate monitoring of energy usage.
Security Office. The need for further alarms in secure containers and/or in the building as it progresses will be risk assessed on an on-going basis. Pedestrian Access to the site will be controlled by site security staff. In addition to the measures described above we will take a proactive approach to Crime Prevention and will engage with the local Police Crime Prevention Officer to put in place measures and procedure to reduce the possible incidence of crime that could be associated with the site. Measures commonly used by the police in this respect include
- Publicity, involving the media, posters, leaflets, Police publications
- Exhibitions, group talks
- Security surveys, strategies provided to individuals, industry and commerce, tailored to their specific needs We will augment any assistance extended to us by the Police by incorporating information into the site safety induction that will provide practical guidance to site staff and operatives on good security practice, e.g:-
- Lock up all tools when you not using them.
- To discourage theft, permanently mark company/personal property for quick visual identification
- Remove ignition keys from all unattended plant.
- Immobilise all plant when not in use
- Whenever possible, park vehicles off the road
- Return all keys to the Site Manager or whoever is responsible for the keys.
- If you have been given a security pass - wear it!
- Report any thefts or suspicious behavior - immediately to the Site Manager
- Order the minimum amount of materials needed and, as with any deliveries, make sure that there is someone trustworthy on site to accept them
- When ordering plant from hire companies make sure that there will be a responsible person on-site to accept delivery These security measures will be discussed fully with supply chain management at tender and pre-contract meetings and will be explained to operatives during Site Induction to ensure they understand their responsibilities on the site and perform to the required standards. 2.8 NOISE & DUST PREVENTION Having considered the issue of Noise Pollution on Ouseburn Quays, we have identified the main sources of noise on the project as:
- Groundworks
- Site Vehicles and Site Plant operating on the site The measures we will take to reduce noise pollution will be as follows:
- We will work closely and cooperate fully in terms of working in normal site hours, as set out by Newcastle City Council.
- Well maintained, sound attenuated plant will be used to carry out all operations reducing plant noise to acceptable levels
- Solid hoarding will be used along the boundary to the residential properties. This will reflect sound back into the site to a significant extent. This will be supplemented local to machinery with movable sound reflecting/absorbing barriers.
- Works above hoarding level, e.g. roof demolition will be executed using manual deconstruction methods which will also allow recovery and segregation of materials.
- Crushing of recovered concrete/masonry materials will be carried out, as far as possible from adjacent properties. Noise arising from Site Vehicles and plant will be managed first of all by rigorously implementing the site hours. Before commencing works on site A&J Keith Ltd will agree the acceptable operating times for the site. Careful selection of plant and vehicles is essential. All plant used on Ouseburn Quays site will be sound attenuated and will be regularly serviced/maintained to ensure it is operating correctly. The site induction for plant operators will cover the issue of noise specifically and they will be warned against over revving of plant and the operation of horns in all but necessary situations. Machine operatives will be advised to isolate plant/ equipment during idle periods reducing not only noise levels but encouraging efficient running of equipment and reduced fumes. In terms of misbehavior of operatives and staff on the site this will be guarded against by strict rules being out in place that will form part of Supply Chain method statements and will be covered in site induction and tool box talks. Any operative found in contravention of the required standards will be warned for a first offence and removed from the site should there be a re-occurrence. Apart from demolition activities dust is likely to present a problem during long dry spells and in these periods damping down across the site will be employed to avoid windborne dust crossing the site boundary and causing inconvenience. With regard to the risk of mud being spread to adjacent highways, A&J Keith Ltd will maintain wheel washing facilities on site and carefully maintain clean hard standings across the site to ensure the surrounding highways remain in a clean acceptable condition and are not impacted on by our work. All the measures mentioned above and others will be captured and monitored. In line with our Company Policy, we will put in place a complaints procedure which will include 24/7 contact details for the Site Management Team, a logging system
- Concrete wash out facilities are to be installed away from any sensitive areas (such as watercourses or drains).
- Perimeter fencing close to water course will reinforced with a 1 meter high wall of sandbags and an additional layer of geotextile material to prevent any surface water running off the site entering the Ouseburn water way
- De-watering into watercourses is expressly prohibited unless approved by the relevant water authority.
- Any De-watering of excess rainwater will be carried out in excavations using sump pumps with perforated pipe and surrounding the pipe with a suitable grade of clean stone and additional filtration mediums
- Water abstraction for construction purposes is expressly prohibited unless approved by the relevant water authority.
- There are no archaeological features identified on this site. If any unexpected finds are encountered, then work is to stop immediately and advice sought.
- Existing surface water run-off will be reinforced and protected along Hume street before excavations begin 2.12 SAFE USE OF CRANES AND PLANT WORKING ADJACENT TO PROPERTIES When preparing any work method statement for a lifting operation, it is important the statement:
- Can be easily understood by persons involved in the lift
- Only include information that is directly related to the lift
- Is flexible enough to allow for changes to the lifting procedure if on site issues require a change. In order to avoid any contact with adjacent properties the crane has been selected that has the correct lifting capacity. Additional safety features include adequate training for the operator; all indicators are operating and are correctly calibrated. The ground conditions will be assessed and adequate outrigger support used prior to any lifting. Environmental factors will be monitored and reviewed to reduce risk of loads swinging into nearby power lines. Correct securing will be assessed on a lift by lift load. Synthetic slings will not be used without protection around the load 2.13 EXCAVATIONS/EARTHWORKS WITHIN THE VICINITY of ADJACENT PROPERTIES All excavation works or other ground penetration activities will be subject to a permit to dig system issued by site management. Due to the soil conditions, excavations will be battered/supported. Appropriate access/egress will be provided and the excavation is to be physically segregated. Inspections of excavations will be carried out by a competent person before work commences, at the start and end of every shift and after any event likely to affect
the stability/strength of the excavation in accordance with CDM Regulation 22 and recorded as per schedule 3. 2.14 PARKING OF VEHICLES OF SITE OPERATIVES AND VISITORS. Site Visitor parking will be located on the purpose made car park on Lime Street outside the site compound with access and egress through the existing site entrance. The route will require visitors to cross Lime Street and Cut Bank at the existing pedestrian crossing. No local traffic management measures for site access are anticipated, but if required will be agreed with the local authority. 2.15 Wheel Washing Facilities Wheel washing facilities will be provided at the site entrance/exit to clean the wheels of vehicles leaving the site if this becomes necessary due to the migration of mud from the site to the carriageway. This will be a pressure washer which will be operated by the gate/banksman on site. If it becomes necessary then a street cleaning machine will be contracted to clean any debris on Ford Street in the areas immediately adjacent to the site entrance and Cut Bank leading away from Ouseburn Quays.
3.0 CONSTRUCTION METHODOLOGY
3.1 CIVIL WORKS
The civil works will largely involve the excavations of the site to formation level. Formation levels will be established by utilising crushed/excavated material in order to create a piling mat for the foundations. 3.2 SUBSTRUCTURES Due to the ground conditions of the site, bored pile foundations are required to form the foundations of the building. In advance of these works taking place. External surveys will be completed on the adjacent properties and vibration monitoring will be used when working in close proximity to the properties. Once piling is complete, the ground slab will be formed. Drainage and Services connections outside the site will be made at as early, a point in the programme as possible and A&J Keith Ltd will liaise with the local authorities and statutory bodies to ensure that relevant permits are in place and that connections are completed in line with our programme requirements. 3.3 SUPERSTRUCTURES When the substructures are suitably advanced the construction of the steel work
First Fix Co-ordinated closely with the Mechanical and Electrical installation the first fix stage of the fit out will mainly be focused around installing floor screed and constructing partition walls (boarded one side). Thorough check procedures will be implemented to ensure that the required quality levels are achieved. Any defects identified will be logged and tracked to ensure they have been rectified prior to advancing to the next stage. As the first fix elements are completed we will implement a ‘permit to close’ system. This system will operate on a room by room basis with detailed checking of installations against construction issue drawings and specifications. Although driven by the M&E coordinator input will be necessary from the package managers and the independent tester to ensure that any anomalies are identified and dealt with. When all parties are satisfied that the first fix element is complete the permits will be signed off to provide clearance to progress to the next stage. Second Fix Maintaining strong links with the Mechanical and Electrical installation teams the second fix stage will pre-dominantly entail completion of partition walls, fire stopping, and installation of ceilings, plastering, first fix joinery, and general preparations for applied finishes. The aim will be to activate the building heating systems as early as possible during this stage of the works to assist with drying out create a suitable environment for the final finishing stages. The permit system will again be implemented to ensure that checks are completed in areas that are to be closed with only maintenance access remaining i.e. ceilings. Our continuous snagging process will become more focused on the standard of finish and ensuring areas are suitably prepared for applied finishes. Finishes At this stage the M&E installations will be substantially complete and progressing into the pre-commissioning stage. This stage of the works will be focused on 2nd^ fix joinery e.g. door sets, fitted furniture, wall protection, wall and floor finishes. Having activated the building heating systems during the previous stage the aim will be to maintain a consistent environment to allow natural materials to acclimatise and avoid stressing due to sudden changes. The snagging process during this phase will become very focused on the standards
of finishes and quality of workmanship in driving towards a defect free facility. Where possible a lock down procedure will be implemented to minimise and control access through permits to substantially completed areas. During this stage of the project the aim is to complete the construction works and achieve a ‘dust free’ environment to enable us to move into the final testing and commissioning of the building services. Snagging/ De-snagging This stage of the process will run parallel with the testing and commissioning process. A final detailed snagging procedure will be implemented in conjunction with the independent Inspector. Utilising a ‘snagging database’ all snags identified will be logged and action lists issued to relevant sub-contractors with programmes allocated for completion of snagging. The snagging works will be inspected and signed off with the database being updated regularly until all items are closed out. At the appropriate stage a final builders clean will be carried out to prepare the building for completion. Testing & Commissioning The commissioning of the new facility will be carried out in 4 distinct phases and all individual activities within these phases will be fully detailed on the commissioning programme prior to the commencement of the commissioning exercise. The four phases of commissioning are as follows:
- Pre-Commissioning – After all services have been installed the individual systems will be energised to ensure all component parts are working and that no faulty piece of equipment, needs replaced. In addition to checking that all equipment is working checks will be made to ensure that the items of plant are capable of achieving the outputs as specified. Each service will be ‘signed off’ as having passed each stage of the commissioning process.
- Main Commissioning – This will only be done after the main construction activities have been completed and the building has had a good standard of builders clean so that dust etc. has been removed from the building. Each service, in turn, will be run at all operational levels as specified in the output specification. This will include the need to accommodate the various conditions, not only variable daily conditions but also seasonal variations. When individual systems have been checked it will be necessary to run all systems simultaneously to ensure that the operation of one system does not affect the correct operation of another system.