Case Studies for Condition Assessment of Potable Water, Raw Water, and Sewer Force Mains

This presentation will highlight three case studies that cover all aspects of pressure pipe condition assessment. It will cover inspection of 20-in. to 36-in. potable water transmission mains in a downtown setting, including multiple interstate crossings. It will cover inspections of miles of 36-in. and 54-in. raw water mains located in rural cross-country easements as well as neighborhood streets. And, it will also cover inspection of the highest risk force mains ranging from 12-in. to 42-in. in a coastal community that desired to create a risk management program. The case studies will detail why certain technologies were selected, the data collected, and how the data were used to calculate the remaining useful life of the asset, and the field lessons learned when deploying the inspection tools.