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Sabigawa (lower dam)

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Sabigawa (lower dam) completed
Sabigawa (lower dam) completed

Particulars

Owner: Tokyo Electric Power Company

Designer: Tokyo Electric Power Co Inc

Contractor: Hazama Corporation, Sata Kogyo Co. Ltd., Nishimatsu Construction Co. Ltd., Tobishima Corporation and JDC Corporation (JV)

Statistics

Type: Gravity

Purpose(s): Hydropower

Reservoir capacity: 11 m3x106

Height: 104 metres

Length: 273 metres

Volume of RCC: 400 m3x103

Total volume: 590 m3x103

Construction Dates

Start of Project: 10/86 (October 1986)

Start of RCC: 03/90 (March 1990)

End of RCC: 12/91 (December 1991)

End of Project: 11/92 (November 1992)

Country: Japan

River: Kosabi

DMS Co-ordinates: 36˚59'43.18"N, 139˚52'4.25"E

DD Co-ordinates: 36.995327, 139.867844

Facings

Upstream

SlopeType
0.10Traditional 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)
91
Pozzolan (kg/m3)Pozzolan Type
39Low-lime flyash (ASTM Class F)