Rehabilitation of Bidvaz Dam in Esfarayen

Project start date

1395

Project description

Client North Khorasan Regional Water Department
Consultant Toosab Consulting Engineer Company
Contractor Ghala-Ashnab Consortium
Contract Duration 18 Months

 

All engineering services, complementary studies and detailed design of the project, procurement of materials and construction of the watertight diaphragm, removal of fill material from the upper shell and restoration of the shell, procurement of watertight wall materials and plastic concrete, complementary injection operations, removal of rocks from the tunnel floor and shotcrete operations, procurement of materials and casting concrete at the upper shell, completion and refurbishment of crest components, repair and reinstallation of instrumentation

Main Project Objectives

– Controlling the flood and regulating water flow of Bidvaz River

– Partial supply of irrigation water needs of the downstream lands

– Partial supply of drinking water needs of Esfarayen and nearby industries

Area of Watertight Wall and Plastic Concrete 6770 m3
Backfill and Riprap 70300 m3
Excavation and Stone Removal 63850 m3
Complementary Watertight Diaphragm Injection 13 Km