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Mano

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Mano completed
Mano completed

Particulars

Owner: Fukushima Prefecture

Designer: Fukushima-ken

Contractor: Nishimatsu Construction Co Ltd and Mitsui Construction Co Ltd (J.V.)

Statistics

Type: Gravity

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

Reservoir capacity: 36 m3x106

Height: 69 metres

Length: 239 metres

Volume of RCC: 104 m3x103

Total volume: 219 m3x103

Construction Dates

Start of Project: 12/83 (December 1983)

Start of RCC: 04/85 (April 1985)

End of RCC: 01/88 (January 1988)

End of Project: 03/90 (March 1990)

Country: Japan

River: Mano

DMS Co-ordinates: 37˚43'7.09"N, 140˚49'59.17"E

DD Co-ordinates: 37.718636, 140.833099

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)
180500

Cementitious material

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