Sabigawa (lower dam)
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Sabigawa (lower dam) completed
Particulars
Owner: unknown
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
| Slope | Type |
|---|---|
| 0.10 | Traditional concrete against formwork |
Downstream
| Slope | Type |
|---|---|
| 0.80 | Traditional concrete against formwork |
Spillway
| Slope | Type |
|---|---|
| 0.80 | Traditional concrete against formwork |
Placement
| Layers (mm) | Lifts (mm) |
|---|---|
| 250 | 750 |
Cementitious material
| Cement (kg/m3) |
|---|
| 91 |
| Pozzolan (kg/m3) | Pozzolan Type |
|---|---|
| 39 | Low-lime flyash (ASTM Class F) |
