Civil MDC

Dam Design & Construction (Dam Safety Guidelines)

Dams which are under the jurisdiction of the Dam Safety Office (DSO) of the Department of Ecology are defined by statute (Chapter 90_03 RCW) and rule (Chapter 173-175 WAC) to be stmctures which can impound more than 10 acre-feet ofwater_ This definition is broad in scope and applies to typical dams used for: domestic, municipal and inigation water supply, hydropower, and recreation. It also applies to other dam and storage facilities such as: stonnwater detention, domestic sewage lagoons, animal waste lagoons, industrial waste storage, mine tailings storage, etc.

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