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Paijanne water tunnel

Päijänne Water Tunnel: The Päijänne Water Tunnel is an impressive underground water supply tunnel located in southern Finland. It is one of the longest tunnels of its kind in the world, stretching approximately 120 kilometers (75 miles) in length. The tunnel was constructed to provide clean drinking water to the capital city of Helsinki and its surrounding areas. The construction of the tunnel began in 1976 and was completed in 1992, taking a total of 16 years to finish. The tunnel is primarily carved through bedrock, reaching depths of up to 100 meters (330 feet) below the surface. It is capable of delivering around 100 million cubic meters (26 billion gallons) of water annually to meet the region's water demand. The Päijänne Water Tunnel is a vital part of Finland's water infrastructure, ensuring a reliable water supply for the population. The tunnel has not only enhanced water security but also contributed to the preservation of the local environment by reducing the need for surface water extraction from sensitive ecosystems. #PäijänneWaterTunnel #PäijänneTunnel #WaterTunnel #Päijänne #PäijänneLake #WaterSupply #Infrastructure #Engineering #FinnishEngineering #FinlandWater