A procedure for rating the dam safety improvement works

Abstract

Among the dam portofoliu administrated by an owner some dams show behaviour anomalies, progressive adverse phenomena or deficiencies of the equipment. The owner develops studies establishing the causes of the found phenomena and designs of the rehabilitation works for deficiencies remedy. Financing of the rehabilitation projects, sometimes requiring high costs, is usually provided from the owner’s own funds. Naturally, the funds that can be allotted are limited and very often cannot cover the costs required by all the technically approved works. Under these conditions, the funds distribution strategy should select primarily the works that contribute significantly to the dam’s safety improvement while in the meantime are bringing maximum benefit to the owner. A decision making strategy is developed in the present paper. Planning the rehabilitation works required by safety improvement is based on the combination of risk reduction and the efficiency of the intervention.