Komayestan Gravity Concrete Dam and Transmission Tunnel

Komayestan Gravity Concrete Dam and Transmission Tunnel

Location: 100 km northwest Sabzevar, south of Jovane basin

Activity: Dams and Water Resources

Client: Khorasan Razavi Regional Water Company

start date:

Completion Date:

Project Description:

Services: Revision on design and supervision on execution 

Objective: Agriculture development, Flood control

Type of dam: Gravity concrete

Height: 28 m from river bed

Crest Length: 84 m 

Foundation type: Conglomerate rock stone

Reservoir volume: 1.4 MCM at normal level

Regulating water capacity: 6.6 MCM per annum

Spillway type: Flip bucket on body

Design flood: 266 m³/sec (1000 years) 

Transmission tunnel: 1000 m tunnel of 1 m diameter from outlet to irrigation area

Bottom outlet capacity: 1.5 m³/sec

Status: Under operation since 2005