Hiyoshi
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Hiyoshi completed
Particulars
Owner: unknown
Designer: Water Resources Development Public Corporation
Contractor: Tobishima Construction Ltd., Kohnoike Co Ltd. and Morimoto Co Ltd. J.V.
Statistics
Type: Gravity
Purpose(s): Flood Control / Hydropower / Water Supply
Reservoir capacity: 66 m3x106
Height: 70 metres
Length: 438 metres
Volume of RCC: 440 m3x103
Total volume: 670 m3x103
Construction Dates
Start of Project: —/83 (— 1983)
Start of RCC: 10/94 (October 1994)
End of RCC: 07/96 (July 1996)
End of Project: 03/98 (March 1998)
Country: Japan
River: Katsura
DMS Co-ordinates: 35˚8'50.78"N, 135˚31'0.84"E
DD Co-ordinates: 35.147438, 135.516907
Facings
Upstream
| Slope | Type |
|---|---|
| Vertical | Traditional concrete against formwork |
| 0.80 | 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 |
| 1000 |
Cementitious material
| Cement (kg/m3) |
|---|
| 84 |
| 77 |
| Pozzolan (kg/m3) | Pozzolan Type |
|---|---|
| 36 | Low-lime flyash (ASTM Class F) |
| 33 |
