Dodairagawa
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Dodairagawa completed
Particulars
Owner: unknown
Designer: Gunma-ken
Contractor: Kumagi-Gumi Co Ltd., Kajima Co Ltd, Shimizu Construction Co Ltd., and Sada Construction Co Ltd. (J.V.)
Statistics
Type: Gravity
Purpose(s): Flood Control / Water Supply
Reservoir capacity: 5 m3x106
Height: 70 metres
Length: 300 metres
Volume of RCC: 167 m3x103
Total volume: 350 m3x103
Construction Dates
Start of Project: 03/86 (March 1986)
Start of RCC: 06/88 (June 1988)
End of RCC: 01/90 (January 1990)
End of Project: 03/92 (March 1992)
Country: Japan
River: Kabura
DMS Co-ordinates: 35˚14'6.34"N, 138˚40'41.44"E
DD Co-ordinates: 35.235092, 138.678177
Facings
Upstream
| Slope | Type |
|---|---|
| Vertical | Traditional concrete against formwork |
| 0.40 | 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) |
|---|---|
| 180 | 500 |
Cementitious material
| Cement (kg/m3) |
|---|
| 96 |
| Pozzolan (kg/m3) | Pozzolan Type |
|---|---|
| 24 | Low-lime flyash (ASTM Class F) |
