Detail Design Services for Birecik Dam and Hydroelectric Power Plant – Turkey

Project Name: Detail Design Services for Birecik Dam and Hydroelectric Power Plant

Country: TURKEY

Finance Source: Private

Tags: Turkey, Local, HEPP, Design

Birecik Dam is located on the River Euphrates and is the one before last of the system of dams (Karkamış Dam, Birecik Dam, Atatürk Dam, Karakaya Dam and Keban Dam; from downstream upwards) within Turkish borders. It has a catchment area of 100 702 km2. The dam is a combination of earth fill and concrete gravity types with a height of 62.50 m above foundation, a crest length of 2510 m, embankment volume of 9 400 000 m3, concrete volume of 1 600 000 m3 volume of its reservoir is 1.22 billion m3 and the spillway capacity is 17 353 m3/sec.

The main purpose of the dam is the production of 2 518 GWh of hydroelectric energy through its power plant with six units, each with an installed capacity of 112 MW.

The controlled spillway consists of 10 openings; each equipped with a radial gate 12.5 m wide and 14.5 m high. These opening are separated by 9 piers, each with a width of 5 m. A stilling basin consisting of 5 openings; each 31.0 m wide separated by 4 piers of 4.0 m width and a length of 130.0 m will be used to dissipate the energy of the probable maximum flood that will be discharged over the spillway crest with a Creager profile designed for a head of 16.0 m.

The feasibility studies and final design of Birecik Dam and Hydroelectric Powerplant had been completed by Temelsu in October 1984 for Electrical Survey Administration. After the authorization of a consortium formed by German, Austrian and Turkish firms to implement the project as a B-O-T (build-operate-transfer) scheme, the detailed design services started in November 1994 and cover the concrete gravity dam, the spillway including the radial gates, the bottom outlet and the stilling basin.