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Moulds, Tony
Canning Dam Remedial Works 1999-2001
Eleventh National Conference on Engineering Heritage: Federation Engineering a Nation; Proceedings
Institution of Engineers, Australia, Barton, Australian Capital Territory, 2001, pp. 229-236

Canning Dam is a large 1930s concrete water supply dam near Perth. Classified by the National Trust, it is recognised by IEAust as one of Australia's most significant dams. Work has just finished on a major remediation of the massive 66 m high, 466 m long curved concrete wall. Preceded by a comprehensive heritage study and preparation of a conservation plan, the remediation work involved the demolition and subsequent reconstruction of the top section of the dam and post-stressing the dam internally with large steel cables grouted into the foundation rock. This large-scale construction project was accomplished with minimal encroachment on the reservoir or the identified conservation areas surrounding the dam. The paper describes aspects of the remedial work and notes the effects of the conservation plan on the planning and subsequent construction of the work. Parallels are drawn between the technology of original construction and of the recent work.

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