Essential Website Maintenance – Thursday 9th January 2020

We will be carrying out essential website maintenance in the afternoon which will affect some functionality. We apologise in advance for any inconvenience the work may cause and will do all we can to keep disruption to an absolute minimum.

Trefriw flood alleviation: Coed Cae Coch Quarry


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Proposed work at Coed Cae Coch Quarry

Additional pipes under the road and a screen to remove rocks from the flow

There are two main problems here:

  • the pipes are too small for the flow
  • the flow carries a lot of large rocks

We will provide a facility that will pour the flow through a sloping screen, so that the rocks get diverted to the side.  The pipe under the quarry access will be enlarged.  We can’t make the pipe under the road bigger because of a power cable, so we will add two new pipes next to the existing one

Typical flood incident

Site map

Diagram of proposed work

 

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