The basic features common to most dams are illustrated in the adjacent figure, and include the dam structure, means of water conveyance (spillway(s) and outlet works), and the reservoir. While the type of dam structure or spillway may vary from dam to dam, the function and general layout are similar. A more thorough discussion of these basic.. The dam diagram depicts a typical wet pond utilizing a dam with a permanent pool. There are several common features found in most dams, these include: Black Line - Normal water elevations. Red Line - Water elevation during a flood event.
Components of a dam. Components of Dam - Youtube video. Water-retaining structure - Components of Dam. The water-retaining structure is the dam's walled structure that resists water while allowing a controlled amount to flow downstream. The side of the barrier where water is collected is known as the upstream side.. The upstream portion of the dam where it contacts the foundation surface. Toe. the downstream portion of the dam where it contacts the bearing surface. Crest. Is the topmost plane on the dam, sometimes used as roadways/pedestrians etc. Parapet Walls. walls along the length of the dam on either side of crest to afford safety to a road or a walkway.