Toppu
Download PDF data sheet
Toppu completed
Particulars
Owner: unknown
Designer: Nippon Koei Co. Ltd.
Contractor: Nishimatsu Construction Co Ltd, Iwata Chizaki Inc.
Statistics
Type: Gravity
Purpose(s): Flood Control / Irrigation / Water Supply
Reservoir capacity: 36 m3x106
Height: 78 metres
Length: 309 metres
Volume of RCC: 440 m3x103
Total volume: 530 m3x103
Construction Dates
Start of Project: 07/02 (July 2002)
Start of RCC: 06/05 (June 2005)
End of RCC: 10/08 (October 2008)
End of Project: 03/14 (March 2014)
Country: Japan
River: Toppu
DMS Co-ordinates: 43˚35'48.85"N, 141˚37'07.70"E
DD Co-ordinates: 43.596905, 141.618805
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 | 1000 |
Cementitious material
| Cement (kg/m3) |
|---|
| 84 |
| Pozzolan (kg/m3) | Pozzolan Type |
|---|---|
| 36 | Low-lime flyash (ASTM Class F) |
