Reclamation Information Sharing Environment (RISE)

This research evaluated polysiloxane coated infrastructure in water immersion and fluctuating immersion service. The coating with the longest ongoing service was aged nine years, applied in 2015. This report provides results for field assessments at six facilities. Assessed facilities included three Reclamation facilities located in the Central Valley of California: Delta Mendota Canal Intertie, Tracy Fish Collection Facility, and Antioch Fish Release Facility, one Reclamation transferred work, Pineview Dam in Utah, and two partner facilities: Tennessee Valley Authority’s Fontana Dam and Denver Water's Williams Fork Dam spillway radial gates. Field assessments included visual observations to identify macroscopic damage. For all facilities except Pineview Dam, field assessments also included electrochemical testing to examine the coating barrier properties.