SEARCHING
... please wait

Irahara

Download PDF data sheet
Photo coming soon

Particulars

Owner: Fukuoka Prefecture

Designer: unknown

Contractor: Taisei Corp.

Statistics

Type: Gravity

Purpose(s): Flood Control / Water Supply

Reservoir capacity: 29 m3x106

Height: 81 metres

Length: 295 metres

Volume of RCC: 372 m3x103

Total volume: 419 m3x103

Construction Dates

Start of Project: 07/14 (July 2014)

Start of RCC: 04/15 (April 2015)

End of RCC: 08/15 (August 2015)

End of Project: 03/18 (March 2018)

Country: Japan

River: Harai

DMS Co-ordinates: unknown

DD Co-ordinates: unknown

Facings

Upstream

SlopeType
VerticalTraditional concrete against formwork
0.60Traditional concrete against formwork

Downstream

SlopeType
0.77Traditional concrete against formwork

Spillway

SlopeType
0.77Traditional concrete against formwork

Placement

Layers (mm)Lifts (mm)
2501000

Cementitious material

Cement (kg/m3)
84
Pozzolan (kg/m3)Pozzolan Type
36Low-lime flyash (ASTM Class F)