Embankment
Take some dirt, let it harden in the sun, then pile it up around a coat rack to create a nice embankment. Every embankment secretly has a coat rack holding up all its sun-hardened dirt. Didn't you know?
てい
つつみ
None
The secret to building a good embankment is tater (てい) tots. You gotta mix those taters in with the dirt as you pile it up around the coat rack. The taters give the embankment the springy elasticity and spongy absorbency necessary to keep raging flood waters in check.