Karkheh Storage Dam and  Hydroelectric Power Plant

KARKHEH DAM (Home page)

 

General information & History:

The initial study of karkheh river basin began in 1335 by an American company and then by an English company in 1345. throughout 1974 – 1979 the feasibility studies of Karkheh basin were carried out by consulting engineers of Development and resource and finally according to the previous studies D&R suggested the Karkheh Zero dam site. Some more studies were carried out after the Islamic revolution and later on a new reconnaissance study was carried out by Mahab-E-Qods Company in 1990 and finally they suggested the present dam axis as their final choice 21 km to North .west of Andimeshk.

The project construction operation started in 1991along with the water diversion system, body of dam an May 2001 and the powerhouse on October 2003.

The finishing construction operation, which has been left ,is now in procession

 

Geographical location:

 
at 21 km north – west of Andimeshk in Khuzestan province.

Objectives and  benefits of the project:

  •          Storage of shallow waters to supply water for irrigation of  about 320000

  •       hectares of lands of Ilam and Khuzestan province

  •          Generating 932 Million KWH hydroelectric energy annually

  •          Season of floods control

  •          Industrial development and increasing the job opportunities in the area.

 

Project  Specifications
Dam Type: Earth – fill with clay care
Height from the foundation: 127 m
Length of the crest : 3030 m
Width of the dam at foundation: 1100m
Width of the crest : 12m
Total volume of the reservoir: 7300 million m3
Useful volume of the reservoir : 5572 million m3
Volume of the concrete works : 1.6 million m3
Volume of the embanking works : 32 million m3
Spillway:  Ogee type
Discharge capacity of the spillway: 18395m3/s
Diversion system: cofferdam with the length of 1080 m and the height of 50 m , four concrete tunnel with the height of 10.5m/ the width of  5 m and the length of 790 m.
Power plant type: Surface
Installed Capacity : 400 MW (3x133.3 MW)