Project Title : Yamchi (Ardebil) Reservoir Dam   (Earth Dam with Clay Core)

Location : Iran - Ardebil
Status : Completed - Dam

Start Date :

Contract No.1                   1996

Contract No.2                   2003

Contract No.3                   2005

End Date :

Contract No.1                   2005

Contract No.2                   2005

Contract No.3                   2008

Technical Specifications :

Height of dam from foundation: 66 m

Length of crest: 870 m

Excavation: 5,400,000 m3

Earth filling: 6,920,000 m3

Steel works: 5,500 ton

Concrete: 67,200 m3

Diversion system consists of earth filled cofferdam (as a part of dam body) and diversion tunnel

-     Two cofferdams with the height of 12 m in upstream and 5m in downstream as parts of dam body and cutoff wall of cofferdam

-     Two tunnels have been constructed with the diameter of 3.16 m. One of them is 450 m long for water diversion and intake and the other with the length of 430 m for water diversion and bottom outlet

Lateral spillway with ogee

-     Crest width: 50 m

-     Spillway capacity: 1,620 m3/s

Grouting gallery: 880 m

Curtain grouting: 4,800 m

Consolidation grouting: 7,300 m

Employer

Ardebil Regional Water Authority

Engineer

Band-Ab Consulting Engineers

Reservoir

Volume: 82,000,000 m3

Annual Water Discharge

120,000,000 m3

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Total Updated Contract Prices

227,000,000 USD


 

Description :

This dam located at 20 km south east of Ardebil city in road to Sarab city, over Balkhlichai river. Main purposes of the project are supplying irrigation and potable water to Ardebil area. The project had been suspended due to budget deficit from 1997 to 1999. After this period we beat records of earth filling with amounts more than 22,000 m3/day and 490,000 m3/month.