Problem: The Barkley Dam Power Plant in Grand Rivers, Kentucky, faced a serious issue when groundwater began leaking into the powerhouse tunnel through eight rigid steel conduits. These conduits had been installed by an electrical contractor, but the steel couplings became compromised, allowing water to seep into the conduits and the tunnel. This posed a significant risk to the power plant’s operations, requiring an immediate and effective solution to stop further water intrusion. The conduits in question were extremely narrow, with diameters ranging from only 1 to 2 inches. This small size made accessing and lining the pipes extremely challenging.
