Thornlea

Particulars

Owner: unknown

Designer: Bradford, Conning and Partners

Contractor: Cyclone Construction

Purpose(s): Irrigation

Reservoir capacity: 3 m³x10⁶

Height: 17 metres

Length: 135 metres

Volume of RCC: 16 m³x10³

Total volume: 17 m³x10³

Start of Project: 06/90 (June 1990)

Start of RCC: 10/90 (October 1990)

End of RCC: 12/90 (December 1990)

End of Project: 02/91 (February 1991)

River: Mlazi

DMS Co-ordinates: 29˚48'6.61"S, 30˚28'38.47"E

DD Co-ordinates: -29.801836, 30.477352

Slope	Type
Vertical	Traditional concrete against formwork

Slope	Type
0.90	RCC against formwork [stepped face]

Slope	Type
0.90	Traditional concrete against formwork

Layers (mm)	Lifts (mm)
170	170

Cement (kg/m³)
38

Pozzolan (kg/m³)	Pozzolan Type
87	Ground-granulated blast-furnace slag