Performance prediction modeling is a crucial step in assessing the remaining service life of pipelines. Sound infrastructure deterioration models are essential for accurately predicting future conditions that, in turn, are key tools for effective maintenance, repair and rehabilitation decision making. The objective of this research is to develop a wastewater pipeline performance deterioration model for predicting the remaining economic life of wastewater pipe for infrastructure asset management. Under Water Environmental Research Foundation (WERF)'s Strategic Asset Management (SAM) Challenge, there was a planned three-phase development of a pipe deterioration model. Only Phases 1 and 2 were successfully completed under the SAM Challenge. In the Phase 1, the research team identified and developed: life cycle of wastewater pipe; failure modes and mechanisms; consequences of failure; data structures; data collection protocols and methodologies. In the Phase 2, research team developed a standard procedure for rating the performance/condition of wastewater pipes. This paper presents the current progress on Phase 3 research for developing a wastewater pipeline performance deterioration model. This paper demonstrates the research methodology and current progress for update of phase 1 and phase 2 efforts and development of the new phase 3 deterioration prediction model. This research will provide utility managers with a practical and efficient model for the predicting wastewater pipeline performance and estimating end of the remaining life deterioration curve for decision making.
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