Hattabara
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Hattabara completed

Particulars
Owner: unknown
Designer: Ministry of Construction
Contractor: Hazama-gumi Ltd and Omoto Construction Co Ltd
Statistics
Type: Gravity
Purpose(s): Flood Control / Water Supply
Reservoir capacity: 60 m3x106
Height: 85 metres
Length: 325 metres
Volume of RCC: 228 m3x103
Total volume: 500 m3x103
Construction Dates
Start of Project: 08/88 (August 1988)
Start of RCC: —/89 (— 1989)
End of RCC: —/92 (— 1992)
End of Project: 03/98 (March 1998)
Country: Japan
River: Ashida
DMS Co-ordinates: 34˚35'18.94"N, 133˚8'45.23"E
DD Co-ordinates: 34.588593, 133.145905
Facings
Upstream
| Slope | Type |
|---|---|
| Vertical | Traditional concrete against formwork |
| 0.20 | Traditional concrete against formwork |
Downstream
| Slope | Type |
|---|---|
| 0.75 | Traditional concrete against formwork |
Spillway
| Slope | Type |
|---|---|
| 0.75 | Traditional concrete against formwork |
Placement
| Layers (mm) | Lifts (mm) |
|---|---|
| 150 - | 750 |
| 200 |
Cementitious material
| Cement (kg/m3) |
|---|
| 84 |
| Pozzolan (kg/m3) | Pozzolan Type |
|---|---|
| 36 | Low-lime flyash (ASTM Class F) |
