Geomembrane Installed to Control Leakage at Gem Lake Dam

摘要

To address continuing leakage at its Gem Lake Dam, Southern California Edison commissioned installation of a geomembrane on the upstream surface. Results indicate seepage through the dam has been reduced by as much as 90 percent since the geomembrane liner was installed three years ago.rnLike many other dam owners, Southern California Edison (SCE) is faced with aging infrastructure that has experienced decades of harsh environmental conditions. SCE owns and operates 37 dams with an average age of 80 years. Concrete deterioration, seepage, and degradation of facing materials are just a few of the issues that need to be addressed to maintain safe operation of dams. SCE has a comprehensive plan and schedule for critical dam rehabilitation that will allow these structures to continue to be valuable resources well into the new century.