The paper describes the state of the art of waterproofing drained Poly Vinyl Chloride membrane systems, installed as a remedial measure on old dams of all types, or as a preventive measure in construction of new embankment dams or RCC dams. The systems installs a waterproofing drained PVC liner over the entire upstream face of the dam, and mechanically secures it by stainless steel batten strips. Drainage allows to discharge saturation and infiltration water, thus accomplishing dehydration of the dam body. The system has documented long and maintenance free durability. Underwater installation is also feasible.
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