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Establishing Consistent Asset Criticality Scoring Process for Plant & Pipe Assets

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Abstract:

Lee County Utilities (LCU) began implementing a comprehensive Asset Management Program in November of 2008 to improve the management of their over 700 million dollars worth of water, wastewater and reclaimed water assets. To speed up the asset management implementation process and provide meaningful results quickly, Malcolm Pirnie and LCU formulated a fast track approach that would complete the planning and design of the program in less than a year, would focus solely on a small portion of the system, Waterway Estates, and would fully evaluate the small pilot area in terms of asset condition, criticality, risk, renewal and replacement funding, capital project prioritization and potential rate impacts. The Waterway Estates system was chosen for the pilot because it contains representative water, wastewater and reclaimed water assets of a variety of ages, which was critical to be able to extrapolate the results to the rest of the system.

The pilot project included a detailed criticality analysis to address the relative consequence of failure of all assets located within Waterway Estates, including vertical and linear assets. This paper will focus on the consistent scoring methodology that was developed through a series of workshops to address both types of assets as well as the outcomes from the assessments and how the data will be utilized. This methodology was based on existing industry standards, where applicable, and customized to LCU's specific asset types and conditions. The analysis began in December of 2008 and was completed in March of 2009. The methodology is now being applied to the rest of the LCU system assets and will be completed for all assets in December of 2010.

Keywords: Asset Management; Capital Planning; Criticality; Risk

Document Type: Research Article

DOI: https://doi.org/10.2175/193864710798170621

Publication date: 2010-01-01

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