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Yunishigawa

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Yunishigawa completed
Yunishigawa completed

Particulars

Owner: Ministry of Land, Infrastructure, Transport and Tourism

Designer: CTI Engineering

Contractor: Kajima Construction Co. Ltd. & Shimizu Corporation JV

Statistics

Type: Gravity

Purpose(s): Flood Control / Irrigation / Water Supply

Reservoir capacity: 75 m3x106

Height: 119 metres

Length: 320 metres

Volume of RCC: 967 m3x103

Total volume: 1053 m3x103

Construction Dates

Start of Project: 08/08 (August 2008)

Start of RCC: 09/09 (September 2009)

End of RCC: 05/11 (May 2011)

End of Project: 09/12 (September 2012)

Country: Japan

River: Yunishi

DMS Co-ordinates: 36˚56'10.72"N, 139˚39'43.69"E

DD Co-ordinates: 36.936310, 139.662140

Facings

Upstream

SlopeType
VerticalTraditional concrete against formwork
0.60 

Downstream

SlopeType
0.78Traditional concrete against formwork

Spillway

SlopeType
0.78Traditional concrete against formwork

Placement

Layers (mm)Lifts (mm)
2501000

Cementitious material

Cement (kg/m3)
91
Pozzolan (kg/m3)Pozzolan Type
39Low-lime flyash (ASTM Class F)