The United States Society on Dams is a professional association that is dedicated to: * Advancing the knowledge of dam engineering, construction, planning, operation, performance, rehabilitation, decommissioning, maintenance, security and safety; * Fostering dam technology for socially, environmentally and financially sustainable water resources systems; * Providing public awareness of the role of dams in the management of the nation's water resources; * Enhancing practices to meet current and future challenges on dams; and * Representing the United States as an active member of the International Commission on Large Dams (ICOLD).