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Nagashima sediment dam

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Nagashima sediment dam completed
Nagashima sediment dam completed

Particulars

Owner: Ministry of Construction

Designer: Ministry of Construction

Contractor: Nishimatu Construction Co., Ltd. and Toda Construction Co., Ltd. J.V.

Statistics

Type: Hardfill

Purpose(s): unknown

Reservoir capacity: 1 m3x106

Height: 33 metres

Length: 127 metres

Volume of RCC: 23 m3x103

Total volume: 55 m3x103

Construction Dates

Start of Project: 03/97 (March 1997)

Start of RCC: 04/99 (April 1999)

End of RCC: 12/99 (December 1999)

End of Project: 08/00 (August 2000)

Country: Japan

River: Ohi

DMS Co-ordinates: 35˚9'59.1"N, 138˚9'20.1"E

DD Co-ordinates: 35.166416, 138.155579

Facings

Upstream

SlopeType
1.20Reinforced conventional concrete cast after RCC placement

Downstream

SlopeType
1.20Reinforced conventional concrete cast after RCC placement

Spillway

SlopeType
  

Placement

Layers (mm)Lifts (mm)
250500
 1000

Cementitious material

Cement (kg/m3)
40
Pozzolan (kg/m3)Pozzolan Type
50Ground-granulated blast-furnace slag