This lecture covers the design and particularities of water intakes for hydropower plants, focusing on reservoir or lake intakes and pumped storage water intakes. It discusses the flow velocity, head loss coefficients, and typical deposition forms in front of power inlets. The lecture also explores the components and equipment, hydraulic sizing, ventilation, drainage works, and the design of bottom drains. It delves into the objectives of bottom drains, the elements involved, and the types of bottom valves used in dams. Additionally, it presents examples of high-pressure gates used in dam constructions, such as slide gates, fixed wheel gates, caterpillar gates, and radial gates.