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11 - 18 years > How will climate change in Wales affect me? > Coastal flooding > Sea defences in Wales > Types of sea defences > Case study : Afon Rhyd-hir
Afon Rhyd-hir : old tidal doors Afon Rhyd-hir : under construction Afon Rhyd-hir : New tidal doors
Case study : Afon Rhyd-hir

  • tidal doors controlling the river flow into Pwllheli harbour were leaking
  • new replacement doors means a high flow from the river can be reduced thus reducing the chance of flooding if high tide and high flow coincide

Environment Agency

Environment Agency

Environment Agency

The old tidal doors

Under construction

The new tidal doors
Photographs from the Environment Agency
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Case study : Abererch