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ian2121 t1_iwjdqfy wrote

Reply to comment by FriedFred in Study indicates flood events at dams will significantly increase over next 80 years due to out of date rainfall modelling and climate change. by unswsydney

That’s how flood control dams are already managed.

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FriedFred t1_iwjeiaf wrote

Ah, thanks - these aren't reservoirs, they're smaller dams for flow management. Makes sense now.

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Redvomit t1_iwjityt wrote

No, this affects all storages designed for extreme inflows. Arguably, smaller dams and reservoirs are less affected by this specific research (but are still affected by climate change impacts)

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ian2121 t1_iwjiv56 wrote

Could be old hydro power dams or irrigation dams. Depends a bit on your climate and region. Speaking of flood control dams check out the Presa Rompepicos near Monterrey Mexico.

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FriedFred t1_iwjn5wl wrote

Cor, that's a massive dam - I hadn't really appreciated that you might want to build something that big for the sake of flood management, rather than because you want to store the water for later (e.g drinking water reservoirs).

Does a structure like that aim to produce constant river flow, averaging out the wet and dry seasons? Is this sort of thing only common in places with variable climates?

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ian2121 t1_iwjnwmw wrote

I’m in the PNW so l don’t know a ton about it but I believe the sole purpose of that dam is to minimize flash flood damage to the city

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