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Ohnagami

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Ohnagami completed
Ohnagami completed

Particulars

Owner: Simane Prefecture

Designer: Simane-ken

Contractor: Okumura Co Ltd., Ohmoto Co Ltd. and Matsue Doken Co Ltd. J.V.

Statistics

Type: Gravity

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

Reservoir capacity: 19 m3x106

Height: 72 metres

Length: 334 metres

Volume of RCC: 284 m3x103

Total volume: 362 m3x103

Construction Dates

Start of Project: 03/93 (March 1993)

Start of RCC: 04/98 (April 1998)

End of RCC: 04/00 (April 2000)

End of Project: 03/03 (March 2003)

Country: Japan

River: Sutu

DMS Co-ordinates: 34˚49'39.5"N, 132˚6'33.7"E

DD Co-ordinates: 34.827641, 132.109360

Facings

Upstream

SlopeType
VerticalTraditional concrete against formwork
0.25Traditional concrete against formwork

Downstream

SlopeType
0.79Traditional concrete against formwork

Spillway

SlopeType
0.79Traditional 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)