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S&T Project 19188 Final Report: Methods of Relining Penstocks and Pipe Structures: Summary of Collaborative Efforts

Published by Bureau of Reclamation | Department of the Interior | Catalog Last Checked: April 18, 2026 at 01:07 AM | Dataset Last Updated: March 01, 2022 at 07:18 PM
Since 2016 the Bureau of Reclamation (Reclamation) and other government agencies, professional organizations, contractors, and coating manufacturers collaborated to advance technologies and promote information sharing to achieve long term corrosion protection of penstocks and other critical piping. The goal was to identify improved materials and application methods for penstocks and other large and small diameter pipe in hydropower facilities. This report documents the highlighted activities of the collaborators, e.g. workshops, case study exchanges, and publications. The future areas of research and development are indicated for autonomous (unmanned) robotic relining of large pipes, small diameter pipe relining technologies (less than 18-inch), and economic study of robotic pipe relining technology.

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