Investigate-Design-Build Delivery Combines Pipeline Inspection and Repair to Create Success for a Texas Power Station

This paper will discuss the investigate-design-build project from inception to implementation and allow attendees to learn about the approach to asset management of this critical pipeline, including a detailed overview of this type of pipe, the condition assessment technologies utilized, and the subsequent internal pipe upgrades that were performed. The investigation consisted of a two-phased internal condition assessment of the 3-mi (4.83 km) makeup water pipeline with contingency repair plans, which included the use of carbon fiber-reinforced polymer (CFRP) for upgrading distressed pipeline segments. As part of the project development, multiple condition assessment techniques applicable for C303 pipe were considered. The planning phase also included traffic control, pipe access, dewatering, and a variety of contingency design-build repair and rehabilitation scenarios.