Steven N.Foellmi
Black & Veatch
Irvine, California

Intakes are structures built in a body of water for the purpose of drawing water for human use. As discussed in this chapter, intake systems include the facilities required to divert and transport water from a supply source, such as a river, lake, or reservoir, to a shore well or pumping station. For small water supplies, the intake system may be relatively simple, consisting of little more than a submerged pipe protected by a rack or screen. In contrast, for major water supply systems, intake systems can be extensive, with diversion accomplished by intake tower structures or submerged inlet works. An intake system may also include transmission conduits, screens, pumping stations, and, in some instances, chemical storage and feed facilities. This chapter presents a brief review of intake features, describes types of intake systems, and provides a discussion of intake design considerations. The design of racks and screens is also discussed.