Assessing PCCP Transmission Mains

Padewski, Edward; Leshner, Nathan; Woodcock, Michael; Higgins, Michael S.

doi:10.1061/40934(252)80

Cited by 4 publications

(1 citation statement)

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“…However, employment of large diameter PCCPs also increased the financial and product loss risks associated with their failure. Several catastrophic drinking water transmission line ruptures illustrate this problem Galleher et al, 2007;Padewski at al., 2007). In 2006, The San Diego Water Authority quickly responded to a rupture in a 243.84 cm (96 inches) line (Galleher et al, 2007).…”

Section: Pccp Analysismentioning

confidence: 99%

Evaluating the risk of water distribution system failure: A shared frailty model

Clark

Thurnau

2011

Front. Earth Sci.

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Condition assessment (CA) Modeling is drawing increasing interest as a technique that can assist in managing drinking water infrastructure. This paper develops a model based on the application of a Cox proportional hazard (PH)/shared frailty model and applies it to evaluating the risk of failure in drinking water networks using data from the Laramie Water Utility (located in Laramie, Wyoming, USA). Using the risk model a cost/ benefit analysis incorporating the inspection value method (IVM), is used to assist in making improved repair, replacement and rehabilitation decisions for selected drinking water distribution system pipes. A separate model is developed to predict failures in prestressed concrete cylinder pipe (PCCP). Various currently available inspection technologies are presented and discussed.

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Section: Pccp Analysismentioning

confidence: 99%