Tamagawa
Download PDF data sheet
Tamagawa completed
Particulars
Owner: unknown
Designer: Ministry of Construction
Contractor: Kajima Co Ltd, Okumura Co Ltd, and Chizaki Kogyo Co Ltd, (J.V.)
Statistics
Type: Gravity
Purpose(s): Flood Control / Hydropower / Irrigation / Water Supply
Reservoir capacity: 254 m3x106
Height: 100 metres
Length: 441 metres
Volume of RCC: 772 m3x103
Total volume: 1150 m3x103
Construction Dates
Start of Project: 08/80 (August 1980)
Start of RCC: 09/83 (September 1983)
End of RCC: 07/86 (July 1986)
End of Project: 12/90 (December 1990)
Country: Japan
River: Tama
DMS Co-ordinates: 39˚49'52.59"N, 140˚38'26.85"E
DD Co-ordinates: 39.831276, 140.640793
Facings
Upstream
| Slope | Type |
|---|---|
| Vertical | Traditional concrete against formwork |
| 0.60 | Traditional concrete against formwork |
Downstream
| Slope | Type |
|---|---|
| 0.81 | Traditional concrete against formwork |
Spillway
| Slope | Type |
|---|---|
| 0.81 | Traditional concrete against formwork |
Placement
| Layers (mm) | Lifts (mm) |
|---|---|
| 150 - | 750 |
| 200 | 1000 |
Cementitious material
| Cement (kg/m3) |
|---|
| 91 |
| Pozzolan (kg/m3) | Pozzolan Type |
|---|---|
| 39 | Low-lime flyash (ASTM Class F) |
