This chapter deals with the design of various type of dams which are used with SHPs. Dams of small height are sometimes constructed to act either as a diversion structure or as a storage dam where water after power generation is normally used for other purposes. The dams are either concrete gravity type or of embankment type. Sometimes composite dams are made in which the spillway in the river channel is of concrete and rest of river section is blocked by earthen embankment. This chapter deals with the layout and design aspects of concrete gravity dam and also of various types of embankment dams such as earth fill and rockfill type. Besides structural design, i.e. stability under loads acting on it, hydraulic design aspects are also described. Design features of foundation treatment, river diversion arrangements and seepage control in dams and foundations are also dealt herein.