Yamba
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Yamba completed
Particulars
Owner: unknown
Designer: Idowr Engineering Co. Ltd.
Contractor: Shimizu Corp., IHI Infrastructure Systems Co. and Tekken Corp. JV
Statistics
Type: Gravity
Purpose(s): Flood Control / Hydropower / Irrigation / Navigation / Water Supply
Reservoir capacity: 108 m3x106
Height: 116 metres
Length: 291 metres
Volume of RCC: unknown
Total volume: 911 m3x103
Construction Dates
Start of Project: 08/14 (August 2014)
Start of RCC: 05/17 (May 2017)
End of RCC: 05/19 (May 2019)
End of Project: 10/19 (October 2019)
Country: Japan
River: Agatsuma
DMS Co-ordinates: 36˚33'24.56"N, 138˚42'49.85"E
DD Co-ordinates: 36.556824, 138.713852
Facings
Upstream
| Slope | Type |
|---|---|
| 0.15 | Traditional concrete against formwork |
Downstream
| Slope | Type |
|---|---|
| 0.80 | Traditional concrete against formwork |
Spillway
| Slope | Type |
|---|---|
| 0.08 | 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) |
