行徳可動堰

The Gyotoku Movable Weir controls water flow at the entrance of the Edogawa Floodway, preventing saltwater from flowing upstream in the Edo River.

Built between 1950 and 1957, this weir emerged as a response to major floods in 1935 and 1938, leading to the Edogawa supplementary plan implementation.

The weir serves as a critical water management system for over 10 million residents in the greater Tokyo area, supplying water for both residential and industrial use.

During floods, the gates open to direct excess water into the Edogawa Floodway, while during normal conditions, they remain closed to prevent seawater intrusion.

The facility features a rare rolling gate system, with cylindrical doors that can be raised using wire mechanisms to control water flow.

Location: Ichikawa

GPS coordinates: 35.70311,139.92314

Latest update: March 4, 2025 13:43