We have completed work to make sure that four reservoirs in the Gwydir Forest near Betws y Coed remain safe in the long-term.

The reservoirs are:

This Plan shows the location of the four reservoirs and the works include:-

  • Strengthening embankments
  • Constructing new spillways
  • Improving access to the reservoirs

This is part of our work to regulate reservoirs under the Reservoirs Act 1975 and is part of a wider programme of reservoir safety work across Wales.

The Gwydir reservoirs are regularly inspected to make sure they remain safe. At the last inspection, some points were raised over the adequacy of the reservoirs to withstand extreme events.

Whilst there are no immediate concerns, we are looking at ways of ensuring the long-term integrity of the structures.

Work were phased across the sites to minimise disruption to landowners, local people and recreational users of the forest.

If you have any further enquiries about the works completed, please let us know by emailing


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