Innovations speed up Wessex Water reservoir refurbishment
A team from Wessex Water have completed a Somerset reservoir refurbishment in rapid time thanks to innovative thinking and teamwork.
The Coker Hill project involved carrying out sealing works to the roof by installing a waterproof membrane, plus internal repairs to the roof, floor and walls due to low steel cover.
Project manager Dave Fear explained: “The entire works was going to be scheduled in for January 2018 onwards, which would have needed an outage of 16 weeks to complete and caused extreme pressure on the network system.
“At short notice we were asked if there was an alternative method of reducing the outage to complete this scheme, as there was a planned outage at Sutton Bingham of four weeks.
“I made a proposal to carry out the works in two phases, the first of which was initially for eight weeks. We then came up with a solution to reduce the programme to four weeks.
“This included weekend working and the introduction of mechanical excavators and conveyors to speed up the repair process and reduce the manual handling on site.”
Fear and his team got the go-ahead to use a 0.8 tonne excavator with biofuel to remove more than 900 tonnes of subsoil. The plan was to remove 350 square metres of turf and clear all the subsoil to expose the concrete slabs, ready to install the waterproof membrane and drainage.
A programme was put together and the resources were made available – eight people worked 10-hour days, seven days a week.
Within three weeks they had the roof slab totally re-sealed, ready for the reservoir clean team to re-sample and return to service. As the reservoir clean was progressing they started to reinstate the subsoil and turf over.
“The project was a great success for all concerned and the reservoir was returned to service by the planned date,” said Fear.
“By using the machines on the roof we estimate that 2,500 man-hours of manual handling were not required, improving morale and productivity on site.”
- Sale of NI reservoir put on hold Northern Ireland Water has halted a plan to sell a disused reservoir to the private sector after public opposition led to... Read More >
- UU to start detailed structural analysis on 'mega-pipe' United Utilities (UU) is spending £22M to conduct a detailed structural analysis of the Haweswater aqueduct, one of the... Read More >
- Yorkshire Water to start £1.9M spillway scheme Yorkshire Water has announced its £1.9M spillway improvement project at Graincliffe reservoir, near Eldwick, will get... Read More >
- Why asset management matters Keeping a detailed asset inventory at a treatment works is a must, and is the first step towards an effective asset... Read More >
- Collaborating on Professional Excellence A new partnership between Energy & Utility Skills and the Institute of Water is to help drive forward the skills agenda... Read More >
- Reducing harmonics with passive filters or active front-end drives Harmonics in the electrical systems of operators can be addressed by front-end drives or passive filters, with each having... Read More >
- Top Tips for… Building Asset Resilience PR19 will be a considerable step forward from PR14, requiring a significant shift towards greater service resilience and a... Read More >
- A Time to Skill: how can water face its workforce challenges? Faced with the double challenge of an ageing workforce and a potential barrier to bringing in EU talent due to Brexit, how... Read More >
- Head of Tendering & Design Salary Range: Commensurate with roleThe Tendering & Design Department plays a critical role in turning customer enquiries in to fully costed... Read more here.
- Head of Operations Salary Range: Commensurate with role Head of Operations: The Head of Operations will be responsible for the successful day to day delivery... Read more here.
- Waste Water Network Manager c. £42,000 depending on skills and experience An exciting opportunity has arisen for the role of Wastewater Network Manager within the Asset... Read more here.
- Deputy Directors – multiple roles The Office of Rail and Road (ORR) is the independent economic and safety regulator for Britain’s railways, overseeing an industry that carried... Read more here.