CPAA commissioned an independent review of pipe costs by OPUS. The results are interesting and counter to the myth that plastic is cheaper than concrete. If you ‘do things right’ then concrete is the most cost effective solution. The document makes interesting reading and highlights some important considerations when making decisions about the choice of material. The report concludes that ‘The requirements for more imported material and quality testing mean that rigid pipes should be cheaper to install than flexible pipes and have a corresponding lower whole of life cost.’
The exercise was completed for both the Australian cost base and the New Zealand cost base using identical methodology.
See the report here