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How to implement flood defences on rivers.

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Comments

  • #32
    Accidentally
    Registered Users, Registered Users 2 Posts: 272 ✭✭Accidentally


    Athlone is another wonderful example. Concrete over your floodplain with a shopping center and housing developments, and then complain when they flood. Who'd have guessed.


  • #33
    Sam Russell
    Moderators, Science, Health & Environment Moderators Posts: 20,358 Mod ✭✭✭✭Sam Russell


    Enniscorthy is another example.


  • #34
    DumbBrunette
    Registered Users, Registered Users 2 Posts: 896 ✭✭✭DumbBrunette


    Bumping this thread with details of the Crossmolina flood relief scheme, which has just started construction. A very impressive scheme which involves digging a new river 'bypass' of Crossmolina town, realigning several roads and building two new bridges. Total cost 34m.

    Screenshot_20250309_093941_Samsung Notes.jpg
    https://www.rte.ie/news/connacht/2025/0307/1500806-crossmolina-flood-relief-scheme/


  • #35
    magicbastarder
    Moderators, Category Moderators, Arts Moderators, Sports Moderators Posts: 52,172 CMod ✭✭✭✭magicbastarder


    again, we're seeing reactive rather than proactive measures.



  • #36
    Capt'n Midnight
    Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 94,763 Mod ✭✭✭✭Capt'n Midnight


    Stop draining marginal land especially where the costs exceed the value added.

    Bring back beavers.



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  • #37
    Sam Russell
    Moderators, Science, Health & Environment Moderators Posts: 20,358 Mod ✭✭✭✭Sam Russell


    We need flood plains as somewhere to store flood water rather than speeding it to the sea.

    There are many ways of slowing the flood water, but a system of managing it is vital. The current approach of building flood defences to stop flooding towns and villages just moves the flood down stream.

    Beavers do a good job of damming rivers and slowing them down.



  • #38
    magicbastarder
    Moderators, Category Moderators, Arts Moderators, Sports Moderators Posts: 52,172 CMod ✭✭✭✭magicbastarder


    rewild the uplands. i don't know where the river deel rises, but if it's say in marginal land that's used to graze sheep, it'd make sense to rewild that land so it acts more like a sponge and releases the rainwater more slowly.



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