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The installation of firefighting water lines in Yerevan Metro tunnels was completed in October 2026, following work that began in 2024.
According to a statement released by the metro administration, a total of 16 kilometers of corrosion-resistant piping was installed.
The metro administration said it had been without such a piping network since 2013.
The new water lines are intended not only for firefighting but also for washing and cleaning the tunnels, providing additional capabilities for infrastructure maintenance and operation.