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Environmental Impact Assessment
of Narmab Dam and its related Installations
Ghodratollah Ayaz Ali Akbar Yadollahi Marznaki Khazarab Consulting Engineers Co.
The construction site of the Narmab reservoir dam is located in south of Minoodasht city and over the Narmab river. The water of Chehelchai and Khormalou rivers is conducted to Narmab river through a diverting tunnel and canal. The environmental assessment of Narmab dam and its related installations began by analyzing the available environmental resources. In analyzing the environmental resources of watershed basins of Chehelchai and khormalou , the available maps together with land works were used. Furthermore , in the environmental impact analysis of the dam and its related installations , the combining method of Leopold and ICOLD matrix was used. All the implementing activities in connection with the dam construction , was predicted in the method , and after the land visit to the studying areas, a list of impacted environmental factors was made ready. The negative impacts of each activity on the environmental resources was then evaluated , and the results were examined. In this method , the environmental resources, which will be affected by “much” and “very much” negative impacts , have been identified .The activities, resulting in resources destruction, have been then specified. In the end, simple and implement able management mechanisms and strategies have been suggested to mitigate the negative impacts resulted from the project implementation .Thus, proper environmental management in the watershed basins of Narmab, Chehelchai, and Khormalou depends on the careful and complete implementation of these proposed mechanisms.
Key
terms : environmental impacts assessment,
trashed, protection, environmental management, matrix, dam,
canal, tunnel.
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