The intent of this standard is to describe current recommended practice for the design, construction, inspection, and maintenance of wire- and strand-wound, circular, prestressed concrete water-containing structures with the following four types of core walls: type I - cast-in-place concrete with vertical prestressed reinforcement; type II - shotcrete with a steel diaphragm; type III - precast concrete with a steel diaphragm; type IV - cast-in-place concrete with a steel diaphragm.