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Tayabasan weir

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Particulars

Owner: Wawa JV Co. Inc. (Prime Infrastructure Capital Inc and San Lorenzo Ruiz Builders and Developers Group)

Designer: Lombardi S.A.

Contractor: Prime Metro BMD Co.

Statistics

Type: Hardfill

Purpose(s): Hydropower / Irrigation / Water Supply

Reservoir capacity: 1 m3x106

Height: 24 metres

Length: 114 metres

Volume of RCC: 30 m3x103

Total volume: unknown

Construction Dates

Start of Project: —/20 (— 2020)

Start of RCC: —/21 (— 2021)

End of RCC: 05/22 (May 2022)

End of Project: 07/22 (July 2022)

Country: Philippines

River: Tayabasan

DMS Co-ordinates: 14˚41'57.95"N, 121˚15'5.50"E

DD Co-ordinates: 14.699431, 121.251526

Facings

Upstream

SlopeType
0.40RCC against formwork with external geomembrane (GEVR/GE-RCC)

Downstream

SlopeType
0.40RCC against formwork (GEVR/GE-RCC)
0.92 

Spillway

SlopeType
0.92Traditional concrete against formwork  [stepped face]

Placement

Layers (mm)Lifts (mm)
300300

Cementitious material

Cement (kg/m3)
90
Pozzolan (kg/m3)Pozzolan Type
120Low-lime flyash (ASTM Class F)