Performance of an Upstream Cofferdam at Dam Construction Site During a Flood Event Berdan Dam Case Study

Guvel S. P., Akgul M. A., Babacan S. D., Sever S., Yurtal R.

6th International Conference on Engineering Technologies, ICENTE'22, Konya, Turkey, 17 - 19 November 2022

  • Publication Type: Conference Paper / Full Text
  • City: Konya
  • Country: Turkey
  • Çukurova University Affiliated: Yes


Due to the limited availability of water resources in nature, development plans are being prepared for sustainable and effective use of water resources. Water structures are constructed in order to develop and control water resources in line with needs. Specialized engineering units work in coordination during the surveying, planning, project design and construction phases of water structure projects. Dam design and construction works depend on several technical, economic, environmental and social factors and dam project implementation is a complex task. The details of project elements regarding hydraulic, geotechnical, structural issues, operation-maintenance works, monitoring, providing dam safety are specified in dam design and construction guidelines. Dams are structures that control large volumes of water and have a long service life. Sustainable water resources management and dam safety effects the performance of the project. The design flood criteria in dam projects depends on safety principles. Flood risk assessments and future projections are essential in flood management. Flood control during dam construction is essential to prevent damages of flood disasters. Upstream cofferdams are built as temporary structures to provide safety, flood protection, diversion and dry environment during construction of permanent structures. It is an important task to find solutions to flood problems in dam construction sites in order to ensure dam safety. Berdan Dam was constructed between 1975 and 1984. The dam is located in Mersin City in the Eastern Mediterranean Basin in the southern of Turkey. In this study, the performance of upstream cofferdam of Berdan Dam during 1980 flood event when the dam was under construction stage, was investigated by using ground measurements and satellite-based remote sensing data. As a result, flood inundated areas up to the Berdan Dam site in 1980 flood, calculated as 271 hectares by using remote sensing data. It is evaluated that the dam structures built at the Berdan dam construction site at the 1980 flood event holded the flood flow and contributed flood control works of downstream areas.