St. Petersburg Metro Tunnel Flood: An Engineering Miscalculation?

St. Petersburg Metro Tunnel Flooding: An Engineering Case Study On May 30, 2025, a section of the St. Petersburg metro tunnel experienced significant flooding. PRO МЕТРО, a local content creator, provides valuable insight into the incident, highlighting the engineering decisions that may have contributed to the event. The video details the two options considered during the tunnel's construction: one above the water table, and a second, ultimately chosen, option below. According to PRO МЕТРО, "The choice to build the tunnel below the groundwater level presented significant risks that unfortunately materialized." The video includes diagrams illustrating the tunnel's position relative to the water table. The incident serves as a reminder of the complexities involved in large-scale infrastructure projects and the importance of careful planning. Fortunately, no injuries were reported, and the video suggests that repairs are underway.