CUWNet: A Practical Seismic Resilience Model of Buried Water Pipeline Networks
Publication: Lifelines 2022
ABSTRACT
Earthquake damage to water utilities harms society far out of proportion to pipe repair costs. Water districts should be equipped to assess their resilience in terms of impacts to themselves, but also in terms of societal impacts. They should know mitigation options, costs, and benefits. We developed a tool called CUWNet to do that. We documented CUWNet’s equations and data tables in open, peer-reviewed publications. CUWNet estimates damage considering earthquake shaking and geotechnical failures. It estimates service restoration over time, considering aftershocks, repair-crew productivity, lifeline interaction, and resource limits. It reasonably hindcasted Napa’s experience after the August 2014 South Napa Earthquake. An Excel implementation was straightforward enough that Las Vegas water system engineers can use it. CUWNet enables a utility to measure and manage its resilience in terms that matter to society. Doing so could better align the interests of the utility and the community to improve the seismic resilience of both.
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Lifelines 2022
Pages: 510 - 522
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Published online: Nov 16, 2022
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