Ohnagami
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Ohnagami completed
Particulars
Owner: unknown
Designer: Simane-ken
Contractor: Okumura Co Ltd., Ohmoto Co Ltd. and Matsue Doken Co Ltd. J.V.
Statistics
Type: Gravity
Purpose(s): Flood Control / Irrigation / Water Supply
Reservoir capacity: 19 m3x106
Height: 72 metres
Length: 334 metres
Volume of RCC: 284 m3x103
Total volume: 362 m3x103
Construction Dates
Start of Project: 03/93 (March 1993)
Start of RCC: 04/98 (April 1998)
End of RCC: 04/00 (April 2000)
End of Project: 03/03 (March 2003)
Country: Japan
River: Sutu
DMS Co-ordinates: 34˚49'39.5"N, 132˚6'33.7"E
DD Co-ordinates: 34.827641, 132.10936
Facings
Upstream
| Slope | Type |
|---|---|
| Vertical | Traditional concrete against formwork |
| 0.25 | Traditional concrete against formwork |
Downstream
| Slope | Type |
|---|---|
| 0.79 | Traditional concrete against formwork |
Spillway
| Slope | Type |
|---|---|
| 0.79 | Traditional concrete against formwork |
Placement
| Layers (mm) | Lifts (mm) |
|---|---|
| 250 | 750 |
Cementitious material
| Cement (kg/m3) |
|---|
| 84 |
| Pozzolan (kg/m3) | Pozzolan Type |
|---|---|
| 36 | Low-lime flyash (ASTM Class F) |
