Quote:
Originally Posted by StainlessSteelCynic
Zalew Szale - Szale lagoon, not so much a dam as a flooded river plain used as a recreational lake for bird watching, fishing and swimming.
It's about 6 or 7 kilometres from the Kalisz city outskirts and from the best I can find, isn't particularly deep, something like 6 to 8 metres
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I had a bit of a search around last night myself and came to the same conclusion. This isn't so much a dam as a flooded depression as SSC mentioned. The wall looks to be a gently sloping mound toped with a hard walkway/road surface.
Blowing it is likely to require many, many tonnes of explosive dug into the wall and the result wouldn't be a catastrophic flash flood, but a relatively gentle flow (I've seen very similar events IRL when earthen wall dams breach, and had the very unfun job of trying to block the breach with sandbags, rocks and loose earth).
The best that could be hoped for is making the downstream area a bit wet and marshy after about a day thereby preventing wheeled vehicles crossing the area. Tracked vehicles would also be wise to avoid it, but they might actually still get through.
In my opinion, breaching this dam is a waste of limited resources, especially in light of the extremely short amount of time the 5th has at the end.