Problem: Measures to prevent condensation on a water pipeline exterior led to conditions adverse to application and curing of any ordinary epoxy primer. The Big Creek Pipeline courses through the western Sierra Nevada mountains, delivering water to two pump houses from Shaver and Huntington lakes. A recoat of eight miles of the pipeline exterior began in August 2023. Because the pipeline is a vital piece of California’s water supply program, owner Southern California Edison needed to keep it operating during the project. Summer days in the Sierras are hot. Water flowing through the pipeline is cool. The contractor eliminated condensation
