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Shimagawa

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Shimagawa completed
Shimagawa completed

Particulars

Owner: Gunma Prefecture

Designer: Gunma-ken

Contractor: Taisei Construction Co Ltd, Sato Kogyo Co Ltd and Hazama-gumi Co Ltd J.V.

Statistics

Type: Gravity

Purpose(s): Flood Control / Water Supply

Reservoir capacity: 9 m3x106

Height: 90 metres

Length: 330 metres

Volume of RCC: 390 m3x103

Total volume: 516 m3x103

Construction Dates

Start of Project: 03/91 (March 1991)

Start of RCC: /94 ( 1994)

End of RCC: 05/96 (May 1996)

End of Project: 03/98 (March 1998)

Country: Japan

River: Shima

DMS Co-ordinates: 36˚41'47.34"N, 138˚46'53.68"E

DD Co-ordinates: 36.696484, 138.781570

Facings

Upstream

SlopeType
VerticalTraditional concrete against formwork
0.50Traditional concrete against formwork

Downstream

SlopeType
0.80Traditional concrete against formwork

Spillway

SlopeType
0.80Traditional concrete against formwork

Placement

Layers (mm)Lifts (mm)
250750

Cementitious material

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