Work is starting to enlarge Abberton Reservoir to help safeguard
future water supplies in Essex.
Does this project have anything to do with Bures or Mount Bures - Yes
(Although the scheme refers to Wormingford - Abberton, the end of the pipeline and extraction site is located in the parish of Mount Bures)
After 17 years of investigation, assessment and consultation, work to enlarge Essex & Suffolk Waters reservoir near Colchester by 58 per cent is getting underway.
In addition to the enhancement of Abberton Reservoir, the Abberton Scheme also includes the installation of two large raw water pipelines, one from Kirtling Green to Wixoe in Suffolk and the other from Wormingford to Abberton Reservoir. Essex & Suffolk Water is investing £150 million on the complete Scheme, which will help ensure a secure water supply to one and half million people in Essex.
Essex is one of the driest county in the UK, receiving on average less than 600mm of rain a year. In a dry year, Essex already has a shortage of water compared with demand. This is predicted to rise even further, almost entirely due to a significant increase in population in the area.
The enlarged reservoir will hold an additional 15 billion litres of water and will be fully operational by 2014. The water level of the reservoir is being raised by three metres and its footprint is increasing by 40 per cent. As well as providing a vital new water resource the enlarged reservoir has been designed to provide benefits for the local community and wildlife.
Due to current pumping and storage constraints, Essex & Suffolk Water cannot always fully utilise water when it is available in the River Stour. The enlarged reservoir and the additional intake from the River Stour at Wormingford will provide the opportunity to abstract and store additional water from the River Stour during high flow conditions which usually occur during the winter.
Transferring the water
In order to transfer additional water to Abberton Reservoir, the existing transfer system needs to be improved.
The plan is to lay two underground pipelines,
one from Kirtling Green in Suffolk to Wixoe on the Essex/Suffolk border
where the additional water will be put into the River Stour. An
additional pumping station will be provided near Wormingford, Essex, where
water will be abstracted from the River Stour and transferred via a second
new pipeline to Abberton Reservoir.
The contract for supplying
the pipes was awarded to FT Pipelines.
FT Pipeline Systems and FT Ductile have been working together in supplying pipe to a major water scheme in the South East of England since April 2010. The Abberton Reservoir Enhancement Scheme (Essex & Suffolk Water), involves increasing the capacity of the existing reservoir by raising the level of the water. This is necessary to meet increased demands for water over the coming years. The FT Group has recently supplied a range of pipe diameters and materials including ductile iron and steel pipe, fittings and associated pipeline products.
The reservoir enhancement project involves re-routing 600mm, 900mm, 1000mm and 1200mm diameter pipelines (totalling nearly 4kms), and the associated works for several new pumping stations. Welded steel pipe has been chosen for the main pipe runs to remove the requirement for thrust blocks and to allow an epoxy internal lining to be used. Cement mortar was not a consideration because of tiger mussel infestation. External coating is the standard 3 layer polyethylene offered on all our systems.
A further consideration of the specification
was the safety issues surrounding man access of pipes. FTPS is able to
provide a solution through their E Joint technology. This allows the welding
process to be completed without damaging the internal lining, thereby
removing the need to access the pipe.
The pipes and specials for the Abberton
reservoir raising project were supplied by FT pipeline systems, the pipes
were manufactured in Turkey by Erciyas
utilising the E joint, the specials ( bends/elbows/inspection
hatches etc) were manufactured in France.
"E Joint" technology explanation:-
The pipes for the Wormingford to Abberton
pipeline were manufactured in Spain
by STS and utilise a double welded joint.
The pipeline will have a capacity of 145
Ml (145.000.000 Litres) per day, this is the max higher transfer rate
possible as their is insufficientt capacity in the upper reaches of the
Wormingford Abberton Pipeline
March 7th:- Welding
of pipes at the Wormingford end commences.
March 12th:- First pipes across
the fields to Lodge Hills buried. Unfortunately it looks as though the
water table is filling the trenches making the welding impossible. See
April 25th:- The concreting stage
of the Break Pressure Tank along the Fordham Rd complete.
July 15th:- Commencing work on the Staunch Farm Pumping Station adjacent to the River Stour
September 6th:- Week commencing
5th September will see UK Power Networks on site to install the power
supply to the Wormingford Pumping station site. Works at Wormingford Break
Tank continue throughout September with the installation of site pipe
work, followed by construction of the embankments to the tank.
October - Fields around Wormingford
and Forham restored back to agricultural use
March - Pressure Tank earthworks
seeded with grass
March/April/May - work in progress on the Pumping Station building adjacent to the River Stour
December 1st- Pumps and pipework
now delivering water from the Stour to Abberton
Visit the Photo
Album to see the progress of the work at the Bures end of the pipeline
This topic has now been
Local Research and Images by Alan Beales