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In this section the project is introduced in form of following items:
Intro
Targets
  • Generating hydroelectric energyTargets
  • Preventing Bakhtyari River sediments from entering into dam reservoir and therefore increasing life-time of Dez dam and power plant
  • Controlling floods, preventing its annual destruction and improving the conditions
  • Safety measures in downstream of dam
History and background
History & background of the projectThe preliminary studies about Bakhtiari project started in March 1996 by Mahab Qods Consulting Engineers and continued for about 33 months. Related reports of the first phase of the project were handed over to the client (IWPC) in March 2000.
After electing the project manager in 2004 and transferring the management of the project from IWPC deputy department, negotiations related to electing the consultant of the second phase of the project continued and finally in May of 2005, IWPC handed over the consulting services of the project (including review and completion of the first phase studies, the second phase studies and preparing tender documents) to the following group of consultants:
  • Moshanir Consulting Engineers
  • Dezab Consulting Engineers
  • Econo-Electrowatt (Swiss)/ Boyri joint-venture
  • Stucky Pars Consulting Engineers
    with common and individual responsibilities.
Location and general layout
Construction location of Bakhtiari dam and power house is in downstream of the Bakhtiari River in Lorestan Province, in south-western parts of Iran and in south-western domain of Zagros Mountains; in a zone with eastern longitude of 48°, 46' and 50" and northern latitude of 32°, 57' and 41"; which is situated in north-west of Tangpanj station on railway rout of Tehran-Ahwaz on Bakhtiari river.
Construction location of Bakhtyari dam has 50 km direct distance from upstream of Dez dam and 5 km distance from upstream the Sezar and Bakhtiari rivers’ cross section.
River specifications
Bakhtiari River is one of the main branches of Dez River which originates from the southern heights of Oshtorankooh Mountain and in the vicinity of Tangpanj station joins to Sezar River and forms Dez River.
Specifications of catchmnet area
Measurement of the catchment area at the site of the dam construction is about 6288 km2 and the average of catchment area height from sea level is 2212 m. Average annual discharge of Bakhtyari River at dam site is about 144.6 m3/s (according to testing period of 60 years) and average annual rainfall in this area is about 1117 mm. average slope of Bakhtiari River in its route is about 35 degrees.
Dam location
Dam locationAs it is shown in the image of project location; in the area of Karun and Bakhtiari catchment area, Bakhtiari dam will be constructed in upstream of (Dez) dam with a distance of 50 km to it.
 
Features
  • The highest double arc dam of the world with the height of 325 m
  • The biggest artificial reservoir of the country after Karkheh reservoir, with the capacity of 5.2 billion m3 at normal level
  • No need to displace inhabitants of the reservoir area (due to the fact that this area is difficult to pass) after construction and water filling not many agricultural lands and no permanent village will go under water
  • Power-plant capacity at 20% functional coefficient is
    1500 W and its annual power generation is about
    3000 GW/h
  • Remarkable role of water supply and water regulation of the dam due to huge capacity of its reservoir
  • Big economical indices of this project in comparison with economical indices of other projects, including hydro electric projects
  • Controlling seasonal floods and improving security conditions in down stream of dam
  • Preventing sediments of Bakhtiari river to enter dam reservoir and as a result increasing the profitable life-time of Dez dam and power-plant
  • Remarkable increasing of water supply capacity in catchment area for better management of water resources and increasing volume of regulated water and as a result increasing the area of agricultural lands in downstream
  • Possibility of generating the optimum energy in daily and annual peak periods of energy consumption
Side Effects
Bakhtiari dam and power-plant project, during implementation, will have important effects on regional job creation by employing regional man-power. Improvement of social, economical and cultural conditions in the region, providing opportunities for development and investment, improving the welfare level of the regional inhabitants, promoting the educational and health level and increasing the annual income, better use of tourism attractions of the region, increasing the share of the region in development of the country, improvement of the land transportation through access roads and increasing the added value of services in the region will be some of economical, cultural and social effects of this national project.
       
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