Abstract
Badush Dam is a partially completed dam and a unique case of flood retention dams. Its intended main function is to perform flood protection once in its lifetime; that is if Mosul Dam would collapse. In such a case, the Badush dam would temporarily store the whole flood wave and route it safely to the downstream. For this end, the bulk of the reservoir is left dry, while the remaining volume at the lower part which is intended for power generation does not give an economic justification for building the full height of the dam. The short duration of the intended use as a protection dam has led to relaxing many design assumptions which have raised concerns over the dam integrity. The current controversy rages now over whether to continue the construction of the dam as it was first designed or to change all that in view of the similar site geology of Mosul Dam. Mosul dam foundations suffer at the moment from the severe continuous dissolution of the soluble materials in its foundation leading to continued maintenance grouting of that foundation. This paper gives an overview of the history of Badush dam, its current design and what new requirements which are needed if it is to replace Mosul Dam itself.
Highlights
Flood retention dams are designed for the purpose of flood control only
In this matter Badush Dam may be considered as a unique case which is unprecedented in dam construction history; for its run of river power generation and for the huge storage capacity that is left unused till an uncertain date and for a single event only
Badush Dam is located on the Tigris River 40 kilometres south of Mosul dam, and it is intended as a safety measure against the catastrophic flood wave that could result from Mosul Dam failure
Summary
Badush dam is a partially multipurpose dam, as it has the capacity to generate electricity, most of its storage volume is allocated for containing and routing safely the flood wave that could be generated in the event of Mosul Dam collapse, and by doing so provide protection for the Tigris River valley In this matter Badush Dam may be considered as a unique case which is unprecedented in dam construction history; for its run of river power generation and for the huge storage capacity that is left unused till an uncertain date and for a single event only. To generally specify the basic design changes that would be required
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