Lessons Learned—Relining Large Diameter Water Pipelines

Managing large diameter pipeline reline projects poses significant challenges for project management teams. These complex technical infrastructure require robust planning to promote project success and limit impacts to the customers who rely on them. What are the primary challenges during initiating, planning, executing, monitoring, and closing of large diameter pipeline reline projects? Sharing lessons learned among project team members prevents an organization from repeating the same mistakes and allows them to take advantage of organizational best practices and innovative approaches, and good work practices should be shared with others. Large diameter pipeline operation and maintenance projects require careful management to overcome the associated challenges successfully. By utilizing tools and techniques, project management teams can navigate the complex nature of these projects, minimize risk, and achieve a successful outcome. This paper reviews example projects completed by Central Arizona Project and breaks down the lessons learned within each phase.