Bidvaz Reservoir Dam

Bidvaz Reservoir Dam

Location: 20 km northeast of Esfarayen

Activity: Dams and Water Resources

Client: Khorasan Razavi Regional Water Company

start date:

Completion Date:

Project Description:

 Services: Study, design & supervision on execution

Objective: Irrigation, Industrial, Potable Water  Supply, Flood Control.

Type of dam: Earth-fill with inclined clay core

Height: 67 m from river bed

Crest Length: 104 m

Vol. of Embankment: 1.2 MCM

 Reservoir Volume: 52.9 MCM at normal level

Regulating water capacity: 39.3 MCM per annum

Spillway type: Free, Mexican notch

Design flood: 710 m³/sec (1000 years)

Diversion system: 301 m tunnel of 3.7 m diameter, 290 m³/s capacity  

Bottom outlet capacity: 20.5 m³/sec 
Status: Under operation since 2005