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Greater Ankara Sewerage and Stormwater Project (BAKAY) (ru)


Client Ankara Water and Sewerage Administration (ASKİ)

Babtie International Ltd. (Scotland)

Kentkur Planlama, Müş. ve Araştırma Şti. (Turkey)

Financing World Bank, European Investment Bank (EIB)
Duration of Services 1990 - 1998
Brief Description of the Project :

Detail design for wastewater and stormwater networks, collectors and interceptors to meet the demand of Ankara where is the capital of Turkey and has 5 500 000 PE for the target years of 2025, preparation of the technical specification, pre-qualification and tender documents in accordance with the world bank procedures, evaluation of pre-qualification and bids, contract documents, supervision of construction works under FIDIC Conditions.

The main components of this study are;

  • Detail design of total 33 km interceptor sewers, between dia. 500 mm – 3000 mm,
  • Detail design of total 103 km collectors sewers, between dia 200 mm – 2600 mm,
  • Detail design of 46 storm sewers,
  • Detail design of 11 000 ha network sewers,
  • System hydraulic modeling,
  • A site survey to assess the physical and structural conditions of the pipeline cross-sections on total 300 km of existing interceptors, collectors and network sewers, and 50 km of existing collectors of the primary drainage system,
  • Tender documentation and supervision of the site survey in order to assess the physical conditions of 1700 km sewer pipelines,
  • Preparation of a computer programme for digitized record drawing and related alphanumerical data base for stormwater and wastewater drainage systems,
  • Preparation of a geotechnical site survey programme and supervise the works,
  • Rehabilitation study of existing sewers which includes construction of 7100 new manholes and reconstruction of 2700 existing manholes,
  • Preparation of tender documents and assist the Client in bidding process,
  • Administrative and Technical Project Management, Services during Commissioning and Construction Supervision.
Scope of Services :
  • Preparation of Final Design,
  • Preparation of Tender Document,
  • Technical assistance during tender period,
  • Construction Supervision.