Dams

Dams book cover — Dams By Virginia Loh-Hagan

Dams — page 1 — The top of a dam is called a crest

Dams — page 2 — What Are Dams Dams are human-designed barriers They stop water flow They control water flow They support the water behind them Water pushes on dams This force is called pressure The pressure is greater at the bottom So engineers build dams in a triangle shape to hold the pressure Dams have thick bottoms and thinner tops Engineers solve problems by thinking of many things Dams must be strong They must be waterproof

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