Those things hanging over the Aare river
Was swimming in the Aare river the other day (Bern) and my friend asked me what are those things hanging over the river. Normally there are two on each section and each one has two vertical steel poles dangling down. I notice this is not unique to Bern/Aare and is probably quite common throughout Switzerland, perhaps even Europe.
They kind of look like a salom gate for kayaks or something but there are not enough of them, and they are too high off the river (probably about 4 feet+).
Any ideas?
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