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Shiromizu

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Shiromizu completed
Shiromizu completed

Particulars

Owner: Yamagata Prefecture

Designer: Yamagata-ken

Contractor: Nishimatsu Construction Co Ltd and Nippon Kokuad Kaihatsu Co Ltd (J.V.)

Statistics

Type: Gravity

Purpose(s): Flood Control / Irrigation

Reservoir capacity: 5 m3x106

Height: 55 metres

Length: 367 metres

Volume of RCC: 142 m3x103

Total volume: 314 m3x103

Construction Dates

Start of Project: 10/84 (October 1984)

Start of RCC: 10/85 (October 1985)

End of RCC: 06/88 (June 1988)

End of Project: 04/90 (April 1990)

Country: Japan

River: Shiromizu

DMS Co-ordinates: 38˚26'56.12"N, 140˚28'30.95"E

DD Co-ordinates: 38.448921, 140.475266

Facings

Upstream

SlopeType
VerticalTraditional concrete against formwork

Downstream

SlopeType
0.80Traditional concrete against formwork

Spillway

SlopeType
0.80Traditional concrete against formwork

Placement

Layers (mm)Lifts (mm)
150  -500
200 

Cementitious material

Cement (kg/m3)
96
Pozzolan (kg/m3)Pozzolan Type
24Low-lime flyash (ASTM Class F)