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Asahi Ogawa

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Asahi Ogawa completed
Asahi Ogawa completed

Particulars

Owner: Toyama Prefecture

Designer: Toyama-ken

Contractor: Kumagi-Gumi Co Ltd, Kajima Co Ltd and Hayasi Construction Co Ltd (J.V.)

Statistics

Type: Gravity

Purpose(s): Flood Control / Hydropower

Reservoir capacity: 5 m3x106

Height: 84 metres

Length: 260 metres

Volume of RCC: 268 m3x103

Total volume: 361 m3x103

Construction Dates

Start of Project: 03/83 (March 1983)

Start of RCC: 05/86 (May 1986)

End of RCC: 06/88 (June 1988)

End of Project: 06/90 (June 1990)

Country: Japan

River: Ogawa

DMS Co-ordinates: 36˚53'17.51"N, 137˚37'6.13"E

DD Co-ordinates: 36.888199, 137.618362

Facings

Upstream

SlopeType
VerticalTraditional concrete against formwork
0.90Traditional concrete against formwork

Downstream

SlopeType
0.80Traditional concrete against formwork

Spillway

SlopeType
0.80Traditional concrete against formwork

Placement

Layers (mm)Lifts (mm)
180500

Cementitious material

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