Gravity dams built using the RCC construction method,
afford economies over conventional concrete through
rapid placement techniques. Construction procedures
associated with RCC require particular attention be given
in the layout and design to watertightness and seepage
control, horizontal and transverse joints, facing elements,
and appurtenant structures. The designer should take
advantage of the latitude afforded by RCC construction
and use engineering judgment to balance cost reductions
and technical requirements related to safety, durability,
and long-term performance. A typical cross section of an
RCC dam is shown in Figure 9-1. RCC mix design and
construction should be in accordance with
EM 1110-2-2006.
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