The design and construction of a faced symmetrical hardfill dam

Faced symmetrical hardfill dams represent a particularly robust and cost-effective form of construction, especially at sites where foundation conditions would not normally support a conventional concrete dam, but where the flood risk requires a structure capable of being overtopped. There will be an increased potential for using such dams in the future as the number of ideal dam sites decreases. The implementation of the Can-Asujan dam in the Philippines allowed the relevant factors involved in the design and construction of such dams to be explored, and the results are discussed here for the benefit of others.