The project comprised of the design and construction of a ‘Access for All’ compliant covered ramp 160m long up to the footbridge north of Platform 4 together with the construction of a 16 person lift at the southern end of the pedestrian overbridge down to Platform 3, including modifications and extensions to the existing station M&E and communication installations.
We carried out the civil engineering elements of the project in house, using our directly employed multi-disciplined workforce which included the construction of the lift pit foundations, ducting, drainage and fencing together with the foundations and reinforced concrete ground slabs for the covered walkway.
During the planning and construction phases of the project, we worked collaboratively with LNER, the Network Rail ASPRO Team, the Station Manager and key stakeholders to devise alternative construction techniques to mitigate or eliminate the requirement to work on the live station platforms.
Through our negotiations with the adjoining landowner, we were able to secure land access to Platform 3 via a haul road across the field and a pedestrian subway which mitigated accessing the site though the station and allowed the works to be undertaken behind secure fencing.
This haul road remained in place throughout the construction works so that the residents of Retford could also use it to access the station.
Design and construction of scour protection measures undertaken within a RAMSAR, SSSI, SPA and SAC designated site. During mobilisation, we employed divers to assess the structure for the design which involved the installation of bespoke EnviroForm grout filled bags within the River Avon to protect the base of one of the piers.
The bespoke hessian bags were lined to prevent grout loss and linked together in panels creating a grout bag mattress to provide articulation.
A deflector plate was installed on the existing sheet piled retaining wall to deflect the turbulent flow around the pier together with a full depth silt curtain to prevent contamination of the river downstream.
The bags were installed by divers and secured using Platypus anchors. This was then covered with the retained excavated silts to provide habitat for spawning fish.
Installation of Aeronautical Ground Lighting (AGL) - Various Locations
Dyer & Butler Electrical has carried out numerous AGL works worth £0.53m at Gatwick Airport. At the moment when the Life Safety critical asset is being relied upon to operate as intended, we use only fully trained, certified and experienced AGL Engineers.
Various locations - Installation of Apron services (FEGP, Safedoc Systems & SNIBs)
Dyer & Butler Electrical has carried out the installation of numerous apron services works worth £0.2m at Gatwick Airport. We have experienced teams trained and certified in a multitude of Apron services including:
ASIG Fuel Farm Maintenance Contract
As well as completing traditional M&E construction projects within the UK construction sector and having a highly trained specialist AGL team to work on the UK and International Airfields; Dyer & Butler Limited/Aviation Electrical teams have also introduced a specialist team of Approved and Certified Compex Electricians that enables us to work on petrochemical sites and offer turnkey solutions in tandem with our Civils teams.
This specialist petrochemical team has grown in strength and depth over the years. Through our reliability and our teams’ knowledge we have recently secured the Fuel Farm Maintenance of the ASIG/BP operational fuel farm facility at Gatwick Airport worth £0.18m
The project involved the modernisation and signalisation of three key roundabouts: Ringway, Crockford and Binfields, along the A33, which connects the M3 to the M4 and forms part of Hampshire County Council’s strategic transport upgrade between Basingstoke and Reading. Each of the roundabouts involved the following elements:
All drainage, surfacing, lighting solutions, road construction and traffic management were successfully delivered in a live, busy urban environment with works managed efficiently to minimise disruption. The work on all three roundabouts was carried out concurrently to minimise the duration of the disruption to regular commuters using the route with all three roundabouts handed over within weeks of each other.
During the scheme, we effectively managed the statutory utilities bringing best practice from our Aviation division to surpass delivery and avoid unnecessary service strikes through improved operational procedures to our permit to dig process.
This project focuses on two strategic routes in the centre of Brighton which aims to simplify the existing highway network through Valley Gardens, enhancing the cycle and pedestrian networks whilst improving safety. The works cover the full range of highway, civil engineering and landscaping works and included:
The scheme required extensive traffic and pedestrian management undertaken in 34 separate phases. Throughout construction, live traffic continued to travel adjacent to working zones which required careful management together with the requirement to accommodate the weekly events held by the diverse community of Brighton.
Due to the extremely complex traffic environment, extensive bespoke temporary traffic management designs and equipment were required. Valley Gardens is a critical hub for public transport in the city and the temporary traffic management employed had to maintain essential bus routes flowing throughout the scheme works.
The scheme consisted of infrastructure and public realm work constructed in advance of the development of a new hotel.
Works included bulk earthworks, drainage installations and connections up to 4m deep, construction of large engineered tree pits, carriageway construction, hard landscaping comprising the installation of natural stone and concrete products, street furniture, architectural seating, handrailing, CCTV and street lighting, tree planting and soft landscaping.
All traffic and pedestrian management was planned, installed and maintained by Dyer & Butler’s RASWA qualified operatives and supervisors.
A key challenge on this project was the logistics of managing deliveries and haulage wagons on a restricted site in the centre of Bristol, directly adjacent to a busy railway station, local shops and businesses.
Using a local supply chain partner that we had used on previous projects (Projects Red and Blue), we were able to recycle 100% of surplus material generated by the scheme. This was achieved by sending several thousand tonnes of excavated waste for re-processing at their local recycling facility in Avonmouth, thereby diverting the material from landfill.
The project comprised the construction of new fillets to widen taxiways A1-A3 by 320m² and T1-A6 by 495m² to accommodate larger, wide-body aircraft. The works included:
The main challenge derived from the operational restraints at Birmingham airport. Every year, the airport schedules a night runway closure for 5 weeks to carry out essential maintenance and construction activities in the manoeuvring area. The 2018 runway closure period spanned from the 5th of November to the 7th of December. Each shift, the contractors are allowed a 6 hour working window to include mobilisation, handover, inspection and demobilisation, leaving 5 hours for construction activities.
In order to overcome this challenge, we studied the timings required to deliver a minimum of 50m² per shift and programmed a construction sequence to the minute, resourcing accordingly to carry out activities in both fillets at the same time.
Dyer & Butler were awarded the contract to design and construct 3 platform extensions at Cooksbridge, Goring-by-Sea and Lancing Stations to support the Gatwick Airport station upgrade, which will improve accessibility and reduce overcrowding and delays for passengers.
To enable the Gatwick project works to be undertaken and provide greater capacity for passengers, Govia Thameslink Railway (GTR), the train company that operates Southern services increased the length of trains operating along Sussex coastal routes to eight carriages. The platform extensions were required to ensure that these longer trains can be accommodated on the platforms instead of regularly blocking level crossings.
Dyer & Butler employed MegaTech Projects Ltd (MPL) to install their Network Rail (NR) approved EPS (Expanded Polystyrene) system to a platform extension totalling 45 metres at Cooksbridge Station on the East Coastway Line.
Working in collaboration with MPL and delivering for Network Rail and Southern Railway, the works had to be surveyed, designed, installed and operational in less than 4 months. An enormous challenge considering no surveys had been carried out at the end of January 2020 when the works were awarded.
MPL undertook the design and installation for Dyer & Butler and with a collaborative approach from all parties the survey, design and fabrication requirements were all met and the platform extension fully completed by the first week in May 2020.
The project involved the reconstruction of two reinforced concrete piers, one of which was adjacent to an operation railway line. As well as the remediation of the Grosvenor Bridge’s waterproofing and surfacing.
In order to undertake the reconstruction works a number of temporary works elements were required such as mass concrete foundations either side of each pier, Super-Prop Supports to jack and support the bridge spans and a post and plank retaining wall to support the adjacent railway line.
At the start of the project, the Kent County Council requested that the programme of works is structured such that the piers are reconstructed sequentially. However, during the Contract Dyer & Butler were instructed to accelerate with the programme altering the programme to allow both piers to be reconstructed concurrently whilst still taking into consideration Network Rail Possession dates.
A considerable amount of time was spent on planning and sequencing of the temporary works. The railway line track support zone was affected by the excavation for the new pier foundations, thus requiring installation of a king-post steel H section post and timber sleeper planked retaining wall.
This Project was to assist South Western Railway to meet the requirements for a traincrew depot and berthing point at Yeovil Junction.
The Works included the provision of walkways and lighting to enable train berthing in new sidings, Down Sidings No’s 1 and 2 at Yeovil Junction. The yellow walking routes with lighting and hop-up locations was installed using our in house Civil and Electrical teams.
Works included installation of service provider and tenant’s feeder pillars and all associated switchgear and metering. The services installation was installed in accordance with the (relevant) Railway Group and Network Rail Standards, British Standards and Codes of Practice, as relevant to the scope of the proposed works.
