SEARCHING
... please wait

Knellpoort

Download PDF data sheet
Knellpoort completed
Knellpoort completed

Particulars

Owner: Department of Water & Sanitation

Designer: Department of Water Affairs

Contractor: Department of Water Affairs

Statistics

Type: Arch-Gravity

Purpose(s): Water Supply

Reservoir capacity: 137 m3x106

Height: 50 metres

Length: 200 metres

Volume of RCC: 45 m3x103

Total volume: 59 m3x103

Construction Dates

Start of Project: 04/88 (April 1988)

Start of RCC: 05/88 (May 1988)

End of RCC: 11/88 (November 1988)

End of Project: 09/89 (September 1989)

Country: South Africa

River: Rietspruit

DMS Co-ordinates: 29˚46'53.85"S, 26˚53'19.53"E

DD Co-ordinates: -29.781626, 26.888758

Facings

Upstream

SlopeType
VerticalTraditional concrete against formwork

Downstream

SlopeType
0.60Traditional concrete against formwork  [stepped face]

Spillway

SlopeType
0.60Traditional concrete against formwork  [stepped face]

Placement

Layers (mm)Lifts (mm)
250250

Cementitious material

Cement (kg/m3)
61
Pozzolan (kg/m3)Pozzolan Type
142Low-lime flyash (ASTM Class F)