Construction updates

October 2017

Food waste coming into Allerton Waste Recovery Park is separated and sent to an Anaerobic Digester (AD) where it is used to generate renewable energy. Here members of our operational team check the system which monitors the AD. From here they can check how much waste is being pumped in and out of the tank, temperature levels as well as the pressure and composition of the biogas being generated.

With waste now being treated here at Allerton Waste Recovery Park, we are also extracting recyclates such as metals and plastics from the incoming household waste. Here you can see bales of aluminium drinks cans which will be sent onwards for recycling.

September 2017

The image below shows some of the complex system of pipes and valves in the Energy from Waste boiler hall.

August 2017

Our graduate Josh carries out checks on the water system used in the Energy from Waste part of the facility.

Our specialist engineers carrying out daily checks in the Energy from Waste boiler hall.

July 2017

July saw the first waste delivered to site in preparation for the start of the hot commissioning period where the plant is tested and waste is treated. Below are the waste bunkers prior to the first deliveries.

Here is the latest aerial image of the site.

Our operational teams have been undergoing intensive training for several months. Pictured below are some of our operators being trained on use of the waste collection 'grab'.

June 2017

We have taken delivery of the first batch of the mobile plant equipment we will be using during operations. Below you can see our new loading shovel.

Below you can see inside one of the waste sorting trommels in the Mechanical Treatment hall. This trommel has different sized holes ranging from 70mm down to 10mm and separates the waste into different sized fractions to help sort it into different types of waste.

May 2017

Here is our latest aerial photo of the site. To the top left of the photo you can see the construction of our visitor centre and at the top left of the plant you can see work is underway on the exit weighbridge.

Our Assistant Operations Manager, Martin, surveys the on-going installation of the Mechanical Treatment equipment.

Around 150km of electrical cabling has been installed at Allerton Waste Recovery Park - if laid out end to end it would be nearly enough to reach from the plant to Nottingham!

April 2017

Below you can see the installation of the waste sorting equipment in the mechanical treatment hall. Installation is nearing completion and testing of the equipment will soon begin.

Here you can see down into one of the 12-metre deep waste bunkers. On arrival, waste delivery vehicles will deposit household waste into one of this bunker. From here it will be fed into the mechanical treatment hall for sorting.

Below is the latest aerial view of the site. Work is continuing on the cladding of the roof on the energy from waste part of the facility. The area at the bottom left of the photo, known as Sandhill, has now been planted with various trees and shrubs as part of the landscaping programme.

March 2017

Here is one of the cylinders used inside the waste sorting trommels. Incoming waste will be rotated through the cylinder and fall through the holes onto conveyor belts below.

Below you can see work taking place in the mechanical treatment hall to install the machinery that will sort incoming waste and extract materials such as metals and plastics for recycling.

The image below shows the completed living roof now in place over the tipping hall. A robotic mowing machine will be used to keep it maintained.

February 2017

Installation of the mechanical treatment equipment is progressing well. Below is one of the four trommels that will be used to help sort and separate waste. Inside each trommel housing is a giant rotating cylinder, like the inside of a washing machine, these have holes through which waste is sifted into different sizes before it then goes through further separation equipment.

Here we can see the waste tipping hall and the exit ramp. Waste will be brought into the facility at the far end of the tipping hall and deposited in one of the waste bunkers. Vehicles will then exit using the ramp which is currently in construction.

Waste management at AWRP won't just start when the facility becomes operational; it is also important during construction. Any waste produced on site, including office waste is separated for recycling.

Here is the latest aerial photo of the site. As you can see, work to complete the exterior cladding is nearing completion.

January 2017

Work has started this week to lay the living roof on the rear of the facility on the tipping hall wall. The first step was to install a frame to hold the organic material. This is covered with a recycled growing medium and topped with a geotextile membrane which holds the plants.


Here you can see development of the amenities building, this will house the welfare facilities for the operational teams, the pink cladding you see is the building insulation. Behind this you can see the air cooled condensers which form part of the energy from waste part of the facility.

Below you can see work taking place in the tipping hall, this is where waste will be brought to site and tipped into waste reception bunkers, from there waste is fed through to the mechanical treatment hall.

Here is the latest view of the site. Much of the work is now taking place inside the building as work is finalised  to complete the exterior. It is now possible to see the final shape of the building.

December 2016

Here you can see the waste bunkers; this is where waste will first be tipped before it goes through for sorting and treatment. The yellow equipment is one of the cranes which will be fitted with a 'grab' and used to move the incoming waste from the bunker into the mechanical treatment hall.

Below you can see work being carried out on the air cooled condenser unit. The pipework you see on the top of the A-frame forms part of the cooling system in the energy from waste part of the facility.

Work is starting this week to install the mechanical treatment equipment. This is where waste is sorted and materials such as plastic and metals are extracted for recycling. Below you can see the hall that will house the waste sorting equipment. You can keep up to date with the installation by clicking on the live mechanical treatment installation tab on the right.

November 2016

Here is a shot showing the some of the network of piping and ducting inside the turbine hall in the energy from waste part of the facility.

Here is an overhead view of some of the steelwork in the energy from waste part of the plant. Under the steelwork you can see some of the fan blades which are part of the air cooled condenser (ACC). The ACC cools the steam which is generated by the energy from waste boilers turning it back into water which can then be re-used in the boiler system.

We've seen some dramatic autumnal sunsets over the site this week. Here is a shot of one of our favourites.

October 2016

Like any big construction project, the crews working at AWRP depend on their equipment. A great deal of work is carried out at height - we currently have 72 mobile access platforms, such as the cherry pickers seen below, in use.

Work has now started to insulate the anaerobic digestion tank. Once this is complete the tank will be covered in cladding which is designed to match the colour scheme of the mechanical treatment and energy from waste buildings.

It may not be as big a job as painting the Forth Road bridge but it was still big job to paint the anaerobic digestion tank prior to it being insulated and then clad.

Below is a shot taken inside the anaerobic digestion tank. The silver cone is the bottom of the digester unit which will store the organic waste - such as food and garden items - for up to 20 days - as it is broken down by bacteria to generate renewable biogas.

September 2016

Work is continuing on the anaerobic digestion part of the facility. Below you can see the scaffolding being erected around the tank so the team can weld the fixings that will hold the cladding in place. They will start installing the cladding early in October.

It can be useful to have a good head for heights working at Allerton Waste Recovery Park, especially for the team working at the top of the newly installed stack. The team seen below were ensuring everything is correctly connected and aligned and also removing the shackles that were used to lift the final section into place.

Here is our latest aerial photo. To the left you can see the mechanical treatment hall; the roof is complete apart from a small section at the rear which has been left open to allow for control room equipment  to be craned into place. To the right is the energy from waste part of the plant. Now the stack is installed, work is progressing on the installation of the roof, starting at the rear and working forwards.

The final two sections of the stack have now been installed. This is the tallest part of the facility standing at 70m high. It is 4m in diameter and houses two flues for each boiler line - it weighs approximately 136 tonnes.

August 2016 

The first two sections of the energy from waste stack are now installed. Here you can see the second section being lifted into position. The second two sections will be installed in early September.

Here is the latest aerial view of site. At the bottom of the image you can see that work is almost complete on the installation of the roof on the mechanical treatment hall. Above that to the left you can see the completed steelwork on the roof of the energy from waste bunker. The first two sections of the energy from waste stack can also be seen.

The photo below shows a section of the ducting being lifted into position in the energy from waste part of the plant.

July 2016

The second bag ash filter unit has now been lifted into place. Both lifts have been carried out using the largest crane on site.

Every lift is carefully planned and calculated supported by the crane's on-board technology as you can see in the photo below.

We've had a big lifting operation on site with the first of the bag house filters to be craned into position. This 88-tonne piece of equipment is part of the energy from waste process. This unit will contain 1,260 filters; these capture particulates (dust) which is then stored in silos for disposal. Below you can see the unit being lifted into its final position.

Below you can see a photo of the first of our newly installed crane gantries above the waste bunkers. When complete, there will be four of these and each one will be fitted with a 'grab' which will be used to feed waste from the bunkers into the mechanical treatment and energy from waste plants.

Below is a view of the roof of the mechanical treatment building taken from the top of the anaerobic digestion tank. As you can see the roof is partially installed.

This week has seen another big lifting operation on site as the ventilation stacks for the mechanical treatment building were lifted into position.

June 2016

The numbers you see on the pipes below aren't graffiti, they are a way to trace every single weld that takes place on site as part of the quality assurance system. The numbers represent both the technical drawing that they refer to and the identity of the welder who did the work. 


Here is the latest aerial shot of the site. On the bottom left hand side you can see the anaerobic digestion tank is now fully assembled; this will be covered in cladding later this year. Behind it is the building which will house the mechanical treatment equipment. To the right you can see both energy from waste boilers have been assembled and lifted into their final position. The steel roof structure is now being put into place above them.

These giant, heavy-duty tension control bolts and are used extensively in the steel framework of the energy from waste building.

They are used in a variety of structures including bridges and stadia roofs through to rail crossings. TCBs as they are commonly known throughout the world, are replacing conventional high strength friction grip bolts because they are quick and easy to install and deliver guaranteed tension. We have more than 6,000 of them in the energy from waste building

Good housekeeping is really important on site and this means getting the vacuum cleaners out! These machines work like household cleaners and are used to help keep down the dust.

May 2016

The second of our two energy from waste boilers has now been lifted into position. As the boiler weighs 158 tonnes, the lifting operations can only be carried out in good weather conditions. Although the sun wasn't shining, fortunately the predicted weather forecast was correct and the lift was able to go ahead on schedule.

The boilers that will power the energy from waste part of the plant are being built on site - and here is a shot of what the inside looks like. The ladders are needed to enable the crew to get access inside as they continue to construct the boiler.

We have had another big lifting operation, this time on the anaerobic digestion tank. Having been built in sections on here on site, all three sections have now been stacked together and the tank is positioned in place. The images below show the tank being lifted into place. The tank will be covered in cladding at the end of this year.

Here is our latest aerial shot. At the top of the image you can see the roof is now in place on part of the building which will house the mechanical treatment part of the plant. You can also see the waste bunkers to the right hand side of the shot you can see work progressing on the waste bunker - this is where the incoming waste will be tipped as it is brought onto site for treatment.

April 2016

Below you can see the roof of the digester tank being lifted into position on the anaerobic digestion part of the plant.

 The first of the two boilers which has been built on site and is now lifted into its final position.

The weekend saw this 158 tonne boiler lifted into position in the energy from waste part of the facility. The second boiler, which is being built on site, will be lifted into position during the summer. When operational these boilers will generate steam to power the turbines, which in turn generates electricity. 

The photo below shows the roof of the mechanical treatment hall where waste will separated and recyclable materials extracted.

Here is our latest aerial view of the site. At the bottom in the centre you can see the building which will house the mechanical treatment hall. Next to that on the right are two circular sections of the anaerobic digestion tank. Above this work continues on the waste tipping bunkers and the energy from waste parts of the facility.

March 2016

Below you can see one of the roller grates that has now been installed in the energy from waste part of the facility. Waste is introduced by a feeder into the furnace and is gradually moved by the slow rotation of the rollers you see below. Air is also injected to ensure combustion is controlled and even.

There has been a big lifting operation happening on site at AWRP today - a 26-tonne section of boiler was lifted into vertical position - now the team will get to work installing the super heater bundles inside the boiler.

Our team of boiler specialists are making good progress in building the two boilers  - which you can see below in red and grey. These will be used in the Energy from Waste process; although they work on a similar basis to household boilers, when fully assembled each one will weigh in at 580 tonnes each!

The image below shows the latest aerial view of the site; towards the bottom of the photo you can see the building which will house the Mechanical Treatment part of the facility, as you can see, the team are busy installing the exterior cladding and roofing.

February 2016

There is a wide range of specialist equipment used on site ranging from cranes and excavators right down to this remote control compaction machine, being used here by Richard from our partners Vinci Construction. This versatile piece of equipment speeds up the process of compacting - or flattening - the earth when excavations are filled in. It also eliminates the risk of injuries caused by vibration as it is 'driven' from a remote control box held by the driver.


Work is progressing well on the cladding for the Mechanical Treatment hall, the first layer of insulation has been completed on the north wall and the team are now installing the outer layer of cladding.

January 2016

Today work began to install the insulation layer on the building which will house the Mechanical Treatment equipment. The team have made a lot of progress in just one day.

December 2015

We were greeted by a fantastic sunrise as we arrived on site this morning.

The teams continue to make good progress on site. Work has started to install the structural steelwork for the building which will house the Mechanical Treatment plant and as you can see from the photo below it is taking shape already. The teams also continue to work on the construction of the bunkers walls which are up to 10m above ground level.


October 2015

As well as construction on the main site, work has also started on the re-development of Claro House which will be used to house the visitor and education centre as well as offices for the facility.

The unstable condition of the old building has made it necessary to  demolish the former farmhouse and re-build it using as many of the original materials as possible. A specialist team are carefully dismantling the old structure and salvaging bricks and roof tiles from derelict building.

The photo below shows roof tiles removed and being stored for re-use. 


August 2015

 At the top of the image below you can see work continuing of the Mechanical Biological Treatment (left) and Energy from Waste (right) parts of the plant. In front of the Energy from Waste bunker hall, work has started to construct the 'raft' on which the Energy from Waste boiler, turbine hall and stack will sit.


June 2015

Here we can see further excavations and the walls of the waste bunkers are constructed up to ground level.


May 2015

Work is completed on the first bunker excavation, the base has been cast with concrete and the team are ready to start installing the bunker walls. 

March 2015

We held a special groundbreaking ceremony to mark the start of works onsite. The event brought together the partners involved in developing the new facility including Amey, North Yorkshire County Council, the City of York Council, project partners from our construction and technology team and lenders.

County Councillor Chris Metcalfe, Executive Member for waste and countryside services at North Yorkshire County Council welcomed the beginning of construction saying: “It will result in a significant reduction in North Yorkshire’s and York’s ‘carbon footprint’ and produce enough electricity to power a town the size of Harrogate”.

Cllr Tracey Simpson-Laing, Cabinet Member for Communities at City of York Council, added: “This is a fantastic example of how partnership working has really come together. AWRP will create a huge boost for our economy and for our region - creating hundreds of jobs for construction and operation, whilst significantly reducing the amount of waste going to landfill and helping to increase our recycling performance.”

Pictured are Cllr Clare Wood, Amey Chief Executive Mel Ewell, Cllr Chris Metcalfe, Cllr Tracey Simpson-Laing and Cllr John Fort

January 2015

Construction begins on site. After the initial site preparations are completed, one of the first jobs is to install the site cabins and welfare facilities for the construction crew.

Shortly after this work started on the bunker excavations. This involved digging two big bunkers, each is seven metres deep and the biggest is 47 metres long and 16 metres wide.