Dam and Hydraulic System
The concrete-face rockfill dam, measuring 105 metres above the thalweg and 131 metres from its foundation, forms the main storage structure that regulates the flow of the Seyhan River and directs it towards power generation.
Completed Projects
Adana Yedigöze Dam and Hydroelectric Power Plant
Information on the dam infrastructure, hydroelectric power generation and technical scope of the Adana Yedigöze Dam and Hydropower Project.
Contact UsHydroelectric Energy
Harnessing the energy potential of the Seyhan River through large-scale engineering structures.
The Yedigöze Sani Bey Dam and Hydroelectric Power Plant Project is a comprehensive hydroelectric energy investment with an installed capacity of 317 MW, constructed on the Seyhan River approximately 34 kilometres northwest of İmamoğlu, Adana.
Commissioned by Yedigöze Elektrik Üretim A.Ş., the project involved the completion, as the main contractor and with a 100% participation rate, of all construction works other than excavation for the power intake and spillway structures and the penstock support foundations.
Scope of Construction Works
Extensive reinforced-concrete structures for high-flow hydroelectric power generation
The project encompasses the large-scale reinforced-concrete works for the intake, spillway and pressurised conveyance structures serving the power generation system of the concrete-face rockfill dam.
Power Intake Structure
The structure enabling the controlled intake of reservoir water into the power generation system was constructed using high-strength reinforced concrete, with due consideration for hydraulic loads, maximum design flow and operational safety.
Spillway Structure
The concrete, reinforcement and formwork works for the spillway structure were completed in accordance with the technical project requirements to ensure that floodwaters are discharged downstream in a controlled manner while maintaining dam safety.
Penstock Support Foundations
Reinforced-concrete construction works were completed for the support and anchor foundations that safely transfer the vertical and horizontal loads of the penstocks carrying pressurised water to the power generation units into the ground.
Reinforced-Concrete Works
Approximately 300,000 m³ of concrete was poured, 5,000 tonnes of reinforcing steel were processed, and approximately 82,000 m² of formwork was installed for energy structures featuring a variety of geometries.
Construction and Quality Management
Material procurement, reinforcement and formwork installation, concrete pouring, curing, measurement and quality control activities were coordinated with the intensive site programme and the specific technical requirements of the various structures.
317 MW total installed capacity of the two-unit hydroelectric power plant
369.84 m³/s maximum design flow of the hydroelectric facility
300,000 m³ approximate volume of concrete poured within the project scope
5,000 tonnes approximate quantity of reinforcement processed for the reinforced-concrete structures
Engineering and Implementation
Coordinated construction management for large-volume reinforced-concrete works
In hydroelectric facilities with high flow rates and hydraulic heads, the reliability of intake, spillway and penstock support structures depends on sound engineering decisions, high-quality reinforced-concrete works and disciplined quality control processes.
KTM Group carried out the construction works for the Yedigöze Sani Bey Dam and Hydroelectric Power Plant as the main contractor under a contract signed on 28 January 2009 and completed on 30 December 2010. Large construction volumes, intensive site coordination and the specific technical requirements of hydraulic structures were managed through an integrated implementation approach.
- Main contracting services commissioned by Yedigöze Elektrik Üretim A.Ş.
- Construction responsibility with a 100% participation rate in the project
- Structures serving a dam system measuring 105 metres above the thalweg
- Dam facilities measuring 131 metres from the foundation
- Energy structures designed for a gross hydraulic head of 95.50 metres
- Hydraulic design for a maximum flow rate of 369.84 m³/s
- Reinforced-concrete works for the power intake and spillway structures
- Construction of penstock support and anchor foundations
- Completion of approximately 82,000 m² of formwork
- Coordination of concrete, reinforcement, formwork and quality control processes