Projects

New Victoria Dam

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Owner: Water Authority of Western Australia
Designer: Water Authority of Western Australia
Contractor: Baulderstone Hornibrook Engineering Pty. Ltd.
Consultant to Contractor: Kinhill/Halcrow/MD&A J.V.
Location: 25 km SE of Perth, Western Australia
River: Mundy Brook
Height: 52 m
Length: 285 m
Volume of RCC: 121 000 m³
Volume of dam: 135 000 m³
Reservoir capacity: 10M m³
Design flood: 700 m³/sec
Start of Project: 23.08.1990
Start of RCC: 11.03.1991
Completion of RCC: 18.08.1991
Completion of Project: 16.11.1991
Forming of upstream face: Horizontally-slipformed facing elements in a vertical face
Forming of downstream face: Horizontally-slipformed facing elements in a stepped face at slopes of 0.325 and 0.80:1 (H:V)
Forming of spillway: Horizontally-slipformed facing elements in a stepped face at slopes of 0.325 and 0.80:1 (H:V)
Mixture proportions:
ASTM Type-I cement 79 kg/m³
ASTM Class F flyash 160 kg/m³
Water 105 kg/m³
Coarse aggregate 1430 kg/m³
Fine aggregate 730 kg/m³
Workability:
Loaded VeBe time 15 - 20 sec±

Original Victoria Dam completed in 1891 (click on image to enlarge)

Section of original dam being blown up in 1990 (click on image to enlarge)

March 1991 - concrete plant and conveyor to dam (click on image to enlarge)

March 1991 - conveyor to dam and excavation (click on image to enlarge)

March 1991 - General view of placement at base of dam (click on image to enlarge)

May 1991 - New Victoria dam under construction from partially-demolished Victoria dam (click on image to enlarge)

May 1991 - Placement of precast concrete slabs as soffit of main gallery (NB walls of gallery formed of slipformed elements) (click on image to enlarge)

May 1991 - Large vibratory roller compacting RCC directly against a downstream facing element (click on image to enlarge)

June 1991 - Inserting 'crack inducer' into RCC after roller compaction (NB shaft on joint in background) (click on image to enlarge)

August 1991 - Downstream face of almost completed dam (NB construction of spillway crest and training walls) (click on image to enlarge)

August 1991 - Upstream face prior to impounding (NB external upstream joint seals on contraction joints) (click on image to enlarge)

August 1991 - Completed external upstream joint seal (click on image to enlarge)

October 1991 - Downstream face of dam after impounding (click on image to enlarge)

Impounded reservoir in October 1991 27 months after the initiation of the Project (click on image to enlarge)

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