Iowa return neighborhoods to nature to fight floods
The standard "watervilla" floats, thanks to a hollow concrete box underneath it. As well as providing the buoyancy, this doubles as a basement just like any other — one home even has a cinema on the lower floor. Typically, the house is moored to the shore on posts sunk into the ground, and is supplied with water and electricity through flexible pipes. As the water level rises, the house simply slides up the posts, and the pipes bend accordingly.
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