In the Tsukuda, Tsukishima, Kachidoki and Harumi areas, there are five sluice gates to protect the town from floods. The sluice gate is set at the border between the outer waters separated by the external dike and the inner waters. If the water level in the outer waters rises due to storm surges, the sluice will be closed to prevent the water level from rising in the inner waters. The area is protected by 5 gates: 1 Sumiyoshi Suimon, 2 Tsukuda Suimon, 3 Asashio Suimon, 4 Hamamae Suimon, and 5 Tsukishima River Suimon. Each of the five sluice gates was different in shape and interesting, so I will introduce them.
①Sumiyoshi Sluice Gate
It is a sluice gate that protects the Tsukuda area from floods such as storm surges. It is a single-leaf roller gate format, with a diameter of 4m x 1 series. It was completed in 1965.
②Tsukuda Sluice Gate
It is a sluice gate at the entrance to the Asashio Canal from the Harumi Canal. It is a double-leaf roller gate format with a diameter of 11.4m x 2 series. It was completed in 1963.
③Morning tide gate
It is a sluice gate at the entrance connecting the Asashio Canal and Tokyo Port. The effective width of 11.4m x 2 double Kannon opening has been adopted in a swing gate format with no height restrictions so that large ships can enter. It was completed in 1964. At present, after crossing Tsukiji Ohashi from the Tsukiji River, the dawn Ohashi of Loop Route 2 from the Kachidoki side to the Harumi side has been completed, so high boats cannot pass.
④Hamamae (Hamasaki) Sluice Gate
It is a sluice gate that prevents flood damage from Shinzuki Shimakawa. It is a single-leaf roller gate with a diameter of 8.4m x 1 line, but it is a sluice gate with no operation room at the top of the roller gate. It was completed in 1964.
⑤Tsukishima River Suimon
It is a sluice gate that prevents flood damage from the Tsukishima River, and is a single-leaf roller gate with a diameter of 11m x 1 series. It was completed in 1964.
①Sumiyoshi Sluice Gate ②Tsukuda Sluice Gate ③Morning tide gate
④Hamamae Sluice Gate ⑤Tsukishima River Suimon
The Tsukishima River and the Shinzuki Shimakawa River both connect the Sumida River and the Asashio Canal, but the Tsukishima River is a river and the Shinzuki Shimakawa is a canal. Therefore, Tsukuda Suimon, Asashio Suimon and Hamamae Suimon are managed by the Tokyo Port and Harbor Bureau, which is the canal manager, and Sumiyoshi Suimon and Tsukishima River Suimon are managed by the Tokyo Metropolitan Bureau of Construction, which is the river manager. I am. I felt a little uncomfortable in the situation where the managers of the sluice gates in the same area were different.
