How boats get past hydraulic dams - GIF

How boats get past hydraulic dams.

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Previously:

Dam breach in China - GIF
Dam discharging silt - GIF
Dam spill gate failure - GIF
Flushing silt from a dam - GIF
Goats scaling dam - GIF

I've never heard of these being called hydraulic dams before. I've only seen the term "lock".

https://en.wikipedia.org/wiki/Lock_(water_navigation)