The integrity of buried large diameter flexible pipe, with its dependence on the embedment and surrounding soil, can be especially susceptible to the level of care taken during installation. As the number, size, and length of our water and wastewater pipelines grow to serve a rising population in increasingly urbanized environments, it becomes more and more imperative that they be constructed to a high quality to ensure structural longevity, maintain hydraulic performance, and minimize risk of failure. This paper will discuss some of the measures that may be incorporated in the design, construction, and inspection of a flexible pipeline to improve the quality of installation. Project examples will be used to consider the relative cost and effectiveness of the various measures.
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