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[Zhulik]

Hi! I've been considering damming a river at my current fort to delay fps death for another year or two. I read the damming article on magmawiki so the technicalities of doing that are all resolved.

However, I was wondering if there are any repercussions to damming a river. My embark does not have a waterfall, but will I somehow cause an epic flood somewhere else on the world map if I dam it? Are there any other downsides to damming a river that the article might have omitted?

[Hyndis]

You only need to divert the water long enough to block off the water with something like a drawbridge or constructed wall. Once that is done you don't need to divert the water anymore.

[Shoku]

Water won't go up over anything if it didn't already go down. With your dam the river just sits still, despite how little sense that makes.