ABSTRACT
A 6-month value engineering study of Marun-II (a regulating dam downstream of 170 m high Marun-I dam) was undertaken in 2002. Based on the Creative Phase of VE study, when Marun-I acts like a mother supporting her child (Marun-II) during construction and operation, a substantial decrease in design floods for spill-way and diversion system would be resulted (approximately 80% in both cases). The sharp reductions of the design floods were resulted from the studies performed in the Development Phase: Dambreak studies, Economical risk analysis and water resources and hydropower modeling of Marun system. Ultimately three alternatives were considered by combining the ideas generated in the Creative Phase. Among them, the RCC option received the best Value Index with approximately 60% reduction in total cost and about 50% reduction in construction time (equivalent to increased revenue of $15 M). Safety during the construction would be enhanced and Marun-II would be over-topping resistant.
