[SystemSafety] Floods and Electrics

[paul_e.bennett at topmail.co.uk]

On 04/01/2016 at 5:19 PM, "Matthew Squair" <mattsquair at gmail.com> wrote:
>
>Similar things happened during Katrina with the New Orleans 
>pumping stations. Clearly a defence in depth requirement was not 
>part of the design brief for either. 
>
>More broadly this is also problem with the siting of NPP 
>(generally they need to be on a river, lake or ocean) and their 
>design against off site events (such as floods). 

One Yorkshire village, refused significant funding for their flood defences
implemented a much less expensive scheme that worked along with
nature rather than trying to fight nature. What they implemented apparently 
cost less than 10% of the original idea and has meant no flooding for them 
this year.

Their scheme worked by reducing flows from up-stream water sources by
crating leaky reservoir areas (when rainfall is high, it builds a small lake of
water while still allowing a specific flow down-stream that can be coped 
with. Most of the reservoir was naturally available materials locally.

Getting right headed about the sort of protection you can put in place and
working with nature costs less and solves the problems more effectively.

Apparently Oxford and Newcastle Universities worked on elements of the 
scheme designs.


Regards

Paul E. Bennett IEng MIET
Systems Engineer

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