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Wimbleball Dam maintenance project


image depicting Diagram of the drilling process
Diagram of the drilling process
South West Water and Wessex Water, which both take water from Wimbleball Lake, are carrying out a joint maintenance project on the dam which started in January 2013.

The work involves injecting grout into the bedrock to block fissures and prevent water ingress. This is being carried out by drilling through the ground from the land side and from the top of the dam using drilling rigs.

How the work may affect you
In the interests of safety, there will be occasions when the bridleway next to the dam and the permitted footpath across the dam will be closed. However, it is our intention to maintain access whenever possible.

Our environmental commitment
We are committed to carrying out work in an environmentally considerate way. Under the guidance of an ecologist we have removed some self-seeded trees and there will be removal of scrub near the dam to provide a level stable platform for the machinery.

Latest update

The scheme is substantially complete and the project has been a success. We will shortly be in the process of demobilising from site and all works will be completed by the end of July.  

Access across the dam is less restrictive, but please ask to be escorted through our site if our health and safety demarcation barriers are erected.

Location of main works

The map shows the main area of work in relation to the dam

Map of Wimbleball dam and location of works




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