ROV in innovative reservoir repair

Work has begun to upgrade Carr Mill Reservoir Photo: Canal & River Trust

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The Canal & River Trust has started a major repair project to upgrade Carr Mill Reservoir on the outskirts of St Helens, Merseyside.

Costing just over £1 million, the work will be delivered in two phases and is due to be completed by the end of 2020. Thanks to the use of an underwater remotely operated vehicle, water levels will only need to be slightly lowered.

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The reservoir is a popular venue for angling and water sports, as well as a great habitat for wildlife. Richard Spencer, project team leader with the charity said the trust was delighted to be able to keep the reservoir in water. “The robotic remotely operated vehicle is able to carry out a range of tasks underwater and will allow us to complete much of the work by the crest road without the need for a full draw down of the water,” he said.

“Our top priority is to keep local residents and businesses safe so from time to time we need to upgrade equipment, and repair and replace the infrastructure,” he added.

The first phase involves the removal of an asbestos concrete pipe and installation of a new gauging weir, security grill, safety railings, ladders, steps and joint sealant, plus other safety and access enhancements. Phase two will see two underwater valves replaced with four new ones and repairs to the embankment and valve hut building.

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